{"id":31681,"date":"2026-08-11T15:46:11","date_gmt":"2026-08-11T10:16:11","guid":{"rendered":"https:\/\/www.medicalbillersandcoders.com\/blog\/?post_type=wpseo_locations&p=31681"},"modified":"2026-08-11T16:20:09","modified_gmt":"2026-08-11T10:50:09","slug":"obgyn-underpayments-cost-california-practices","status":"publish","type":"wpseo_locations","link":"https:\/\/www.medicalbillersandcoders.com\/blog\/locations\/obgyn-underpayments-cost-california-practices\/","title":{"rendered":"What Did OBGYN Underpayments Cost California Practices in the First Half of 2026?"},"content":{"rendered":"

For California OBGYN groups collecting $1 million or more per month, OBGYN underpayments cost California practices between 2 and 5 percent of collected revenue across the first half of 2026, with Medi-Cal managed care variance and AB 72 out-of-network compliance gaps driving a larger share of that total than in most other states.<\/p>\r\n

That range sits above the national figure for one structural reason: California runs the most fragmented managed care landscape in the country. A global maternity claim coded identically can process correctly at Health Net and get repriced without explanation at Molina Healthcare or Anthem Blue Cross, and neither event triggers a denial code a billing team would normally chase.<\/p>\r\n

What OBGYN Underpayments Cost California Practices Actually Means<\/h2>\r\n

OBGYN underpayments cost California practices the gap between what a payer, whether Medi-Cal managed care, a commercial carrier, or Medicare, contractually owes on a claim and what it actually remitted. Kaiser, Anthem Blue Cross, Health Net, Molina Healthcare, IEHP, and L.A. Care each run distinct configurations across California’s counties, so the same CPT and modifier combination can generate different remittance outcomes depending on which plan processed it.<\/p>\r\n

DHCS expanded Medi-Cal managed care enrollment statewide earlier in 2026, reassigning patients between these plans and, with them, the timely filing clocks most practices do not track at the individual patient level. A claim filed against an outdated plan assignment often pays at a reduced rate rather than denying outright.<\/p>\r\n

How to Calculate What Underpayments Cost Your California Group<\/h2>\r\n

Pull your contracted fee schedule for your top three payers by volume, typically two Medi-Cal managed care plans plus your leading commercial carrier, then compare it against actual remittance on 25 to 50 claims per payer across January through June.<\/p>\r\n

Escalate to a full remittance review if more than 8 percent of sampled claims show variance, or any single variance exceeds 5 percent of the allowed amount. The sample tells you where variance concentrates. It does not tell you whether the recovery window on those claims is still open, since Medi-Cal, AB 72, and Medicare each run separate clocks that start counting the moment the claim posted.<\/p>\r\n

First Half 2026 Underpayment Cost Formula<\/h2>\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Variable<\/th>\r\nWhat It Measures<\/th>\r\nWhere to Find It<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
Claim volume (H1)<\/td>\r\nTotal claims billed to a given payer, January to June<\/td>\r\nPractice management system claim export<\/td>\r\n<\/tr>\r\n
Variance incidence rate<\/td>\r\nPercentage of sampled claims paid below contracted rate<\/td>\r\nManual comparison of remittance vs. fee schedule<\/td>\r\n<\/tr>\r\n
Average underpayment per claim<\/td>\r\nDollar difference between contracted and paid amount<\/td>\r\nSame comparison, averaged across variance claims<\/td>\r\n<\/tr>\r\n
H1 underpayment cost<\/td>\r\nClaim volume x variance incidence rate x average underpayment<\/td>\r\nMultiply the three figures above<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n

California OBGYN Underpayment Recovery Checklist by Payer Type<\/h2>\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Payer Type<\/th>\r\nFiling Requirement<\/th>\r\nDeadline<\/th>\r\nEscalation If Unresolved<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
Medi-Cal managed care (Health Net, Molina Healthcare, Anthem Blue Cross Medi-Cal)<\/td>\r\nWritten Provider Dispute Resolution (PDR) form citing the DHCS fee schedule line<\/td>\r\n365 calendar days from date of payment or denial<\/td>\r\nDMHC provider complaint if the plan does not respond within 45 working days<\/td>\r\n<\/tr>\r\n
Commercial AB 72 out-of-network (OB anesthesia, MFM co-management at an in-network facility)<\/td>\r\nPayor’s internal PDR first, then a DMHC Non-Emergency Services IDRP application via the MAXIMUS portal<\/td>\r\nPDR: minimum 45 working days before escalation is eligible<\/td>\r\nDMHC IDRP application once the PDR window closes or a determination is received<\/td>\r\n<\/tr>\r\n
Medicare Part B (Noridian, Jurisdiction E)<\/td>\r\nWritten redetermination request citing the specific claim line and CPT code<\/td>\r\n120 days from the initial determination date<\/td>\r\nReconsideration with the Qualified Independent Contractor if redetermination is denied<\/td>\r\n<\/tr>\r\n
IPA-capitated encounters (CalAIM reconciliation)<\/td>\r\nEncounter data resubmission through the IPA’s DHCS-configured system<\/td>\r\nVaries by IPA contract, typically tied to the original claim’s timely filing window<\/td>\r\nReconciliation escalation directly with the IPA’s DHCS liaison<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n

Why Finding the Variance Is Only Half the Work<\/h2>\r\n

Running the sample above tells a practice where the problem lives. Recovering it means filing the correct document, to the correct department, inside a deadline already running by the time the claim was identified. A Health Net Medi-Cal underpayment and an IEHP underpayment on the same CPT code do not go through the same PDR mailbox, and an AB 72 dispute cannot go to DMHC until the payor’s own 45-working-day PDR window has run its course. Practices that find the variance but miss the sequencing lose the recovery anyway, just later and with more staff hours spent on it.<\/p>\r\n

Why This Requires More Than a Denial Management Process<\/h2>\r\n

A strong denial management<\/a> workflow catches claims rejected outright, not claims paid below the contracted or statutory rate. Finding these underpayments means comparing remittance against plan-specific fee schedules on claims already closed, a different discipline than working a claim denial<\/a> queue built for rejection codes.<\/p>\r\n

Generalist Medical Billing Services<\/a> rarely track Health Net, Molina, Anthem Blue Cross, Kaiser, IEHP, and L.A. Care configurations closely enough, let alone the separate PDR, AB 72, and Medicare clocks each one runs. Specialty-trained OBGYN Billing Services in California<\/a>, built on the same OBGYN Billing Services<\/a> discipline applied nationally, build payer-specific variance checks and deadline tracking into standard Revenue Cycle Management<\/a>, not a once-a-year audit. See MBC’s guidance on billing global maternity packages correctly in California<\/a> for the coding side.<\/p>\r\n

Practices with unworked Legacy AR<\/a> or old AR recovery<\/a> balances face a compounding issue: staff already chasing aged claims have little bandwidth left to track six dispute clocks, and any physician added without airtight credentialing<\/a> risks claims paid at default rates across several plans at once.<\/p>\r\n

Why This Is an EBITDA Problem for Multi-Site California Groups<\/h2>\r\n

For a single-site practice, the checklist above is workable with disciplined internal tracking. For multi-site groups and PE-backed platforms spanning counties with different plan mixes, a consolidated collections report blends payer-level variance into one number, so a systemic underpayment in one county’s dominant plan sits invisible inside an otherwise healthy statewide figure until a quality-of-earnings review<\/strong> finds it. At that point it lands as a downward adjustment to net realized revenue<\/strong> rather than a correctable finding. Protecting Yield EBITDA<\/strong> from this leakage is an Enterprise Revenue Integrity<\/strong> function requiring county-by-county, payer-by-payer visibility with a dedicated account manager<\/strong> tracking every deadline in parallel, not a once-a-year spot check that catches variance after the filing windows have closed.<\/p>\r\n

Conclusion<\/h2>\r\n

The first half of 2026 is closed, and for California OBGYN groups the clock on Medi-Cal PDR filings, AB 72 disputes, and Medicare redeterminations is already running against whatever variance sits inside it. A practice identifying its exposure in August still has time to file correctly against most of that window; a practice waiting until a fourth-quarter audit does not. MBC brings 25+ years of California-specific OBGYN billing experience, a 97% clean claim rate, and a 30% A\/R reduction within 90 days to groups navigating this sequencing problem across multiple payers at once. Request Your Free Revenue Diagnostic to see what your first half actually cost, and which filing windows are still open.<\/p>\r\n

Frequently Asked Questions<\/h2>\r\n

<\/p>\r\n

\r\n
How is a Medi-Cal managed care underpayment different from a denial?<\/strong>\r\n

A denial rejects the claim outright with a code prompting an appeal. A Medi-Cal managed care underpayment, from a plan like Health Net or Molina Healthcare, pays the claim below the DHCS fee schedule with no rejection code attached. It requires a written Provider Dispute Resolution filing within 365 calendar days of the payment, not a standard appeal, and most practices never review paid claims closely enough to catch it in time.<\/p>\r\n<\/div>\r\n

Does AB 72 apply to OBGYN out-of-network claims?<\/strong>\r\n

AB 72 applies to commercial DMHC-regulated plans when a patient receives non-emergency services from an out-of-network provider at an in-network facility, commonly affecting OB anesthesia and maternal-fetal medicine co-management. It does not apply to Medi-Cal managed care. The provider must first file the payor’s own PDR for a minimum of 45 working days before escalating to DMHC’s Independent Dispute Resolution Process.<\/p>\r\n<\/div>\r\n

How many California payers should an OBGYN group track separately?<\/strong>\r\n

Most practices only need to track the two or three payers covering the majority of their patient panel closely, whether that is Health Net and Anthem Blue Cross Medi-Cal in one county or IEHP and Molina in another. Sampling claims from those top payers first gives the fastest directional read on where variance concentrates before expanding further.<\/p>\r\n<\/div>\r\n

What is the deadline to dispute a Medicare Part B underpayment in California?<\/strong>\r\n

Noridian, the Medicare Administrative Contractor for Jurisdiction E, generally allows 120 days from the initial determination date to request a redetermination. This runs on a separate, shorter clock than Medi-Cal’s 365-day PDR window, which is why Medicare claims should be tracked apart from commercial and Medi-Cal claims rather than batched into one review cycle.<\/p>\r\n<\/div>\r\n

Can CalAIM changes cause underpayments even on correctly coded claims?<\/strong>\r\n

Yes. CalAIM restructured encounter payment and capitation reconciliation logic for Medi-Cal managed care, and IPA-level reconciliation gaps can underpay a correctly coded encounter without generating a denial. Recovery typically requires an encounter data resubmission through the IPA’s DHCS-configured system rather than a standard claim correction.<\/p>\r\n

Add in the conclusion or compliance section<\/h3>\r\n

CMS official Medicare billing and claims-processing resources for physicians and suppliers are available here: CMS Medicare Billing and EDI Resources <\/span><\/span>.<\/a><\/p>\r\n

OBGYN Medical Billing Services in California<\/span><\/h3>
<\/div>Phone: 888-357-3226<\/span><\/a><\/span>Fax: 888-316-4566<\/span><\/span>Email: sales@medicalbillersandcoders.com<\/a><\/span><\/div><\/p>\r\n<\/div>\r\n<\/div>\r\n

<\/p>","protected":false},"excerpt":{"rendered":"

For California OBGYN groups collecting $1 million or more per month, OBGYN underpayments cost California practices between 2 and 5 percent of collected revenue across the first half of 2026, with Medi-Cal managed care variance and AB 72 out-of-network compliance gaps driving a larger share of that total than in most other states. That range […]<\/p>\n","protected":false},"author":8,"featured_media":31686,"menu_order":0,"template":"","meta":{"footnotes":""},"wpseo_locations_category":[5920],"class_list":["post-31681","wpseo_locations","type-wpseo_locations","status-publish","has-post-thumbnail","hentry","wpseo_locations_category-obgyn-medical-billing-services-in-california"],"yoast_head":"\nOBGYN Underpayments Cost California<\/title>\n<meta name=\"description\" content=\"Explore how OBGYN underpayments cost California practices significantly, impacting revenue for medical groups across the state.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.medicalbillersandcoders.com\/blog\/locations\/obgyn-underpayments-cost-california-practices\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Did 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is a Medi-Cal managed care underpayment different from a denial?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A denial rejects the claim outright with a code prompting an appeal. A Medi-Cal managed care underpayment, from a plan like Health Net or Molina Healthcare, pays the claim below the DHCS fee schedule with no rejection code attached. It requires a written Provider Dispute Resolution filing within 365 calendar days of the payment, not a standard appeal, and most practices never review paid claims closely enough to catch it in time.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.medicalbillersandcoders.com\/blog\/locations\/obgyn-underpayments-cost-california-practices\/#faq-question-1786442506851","position":2,"url":"https:\/\/www.medicalbillersandcoders.com\/blog\/locations\/obgyn-underpayments-cost-california-practices\/#faq-question-1786442506851","name":"Does AB 72 apply to OBGYN out-of-network claims?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"AB 72 applies to commercial DMHC-regulated plans when a patient receives non-emergency services from an out-of-network provider at an in-network facility, commonly affecting OB anesthesia and maternal-fetal medicine co-management. It does not apply to Medi-Cal managed care. The provider must first file the payor's own PDR for a minimum of 45 working days before escalating to DMHC's Independent Dispute Resolution Process.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.medicalbillersandcoders.com\/blog\/locations\/obgyn-underpayments-cost-california-practices\/#faq-question-1786442567784","position":3,"url":"https:\/\/www.medicalbillersandcoders.com\/blog\/locations\/obgyn-underpayments-cost-california-practices\/#faq-question-1786442567784","name":"How many California payers should an OBGYN group track separately?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Most practices only need to track the two or three payers covering the majority of their patient panel closely, whether that is Health Net and Anthem Blue Cross Medi-Cal in one county or IEHP and Molina in another. 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