Skip to content
FonteumThe Graph

The capability layer

APIREST + bulk accessMCP serverCallable by AI agentsFHIR R4 APIBulk exportAttestation & audit packReconciliationSource-vs-source diffsEntity graphSnapshotsPoint-in-time, bitemporal

By use case

Exclusion & sanctions screeningCredentialing & provider-data enrichmentAudit evidence & defensible programsProvider data for AI / RAGM&A & network diligence

By buyer

Compliance & riskDevelopers & AI teams

The differentiator

Coverage & sourcesThe catalogFreshnessMethodologyCare CompareFacility qualityBrowse all datasets →
Research

The dev on-ramp

DocsAPI referenceMCPQuickstartStatusChangelogSDKs & integrations
Pricing
Sign inTry the FHIR sandbox →Request access →

Platform

APIMCP serverFHIR R4 APIBulk exportAttestation & audit packReconciliationEntity graphSnapshots

Solutions

Exclusion & sanctions screeningCredentialing & provider-data enrichmentAudit evidence & defensible programsProvider data for AI / RAGM&A & network diligenceCompliance & riskDevelopers & AI teams

Data

Coverage & sourcesFreshnessMethodologyCare CompareBrowse all datasets →
Research

Developers

DocsAPI referenceMCPQuickstartStatusChangelogSDKs & integrations
Pricing
Sign inTry the FHIR sandbox →Request access →
Providers/Specialties/Obstetrics & Gynecology

Provider directory · By specialty

Healthcare providers — Obstetrics & Gynecology

CMS NPPES registration records for the Obstetrics & Gynecology specialty — national supply, per-state distribution, and national MIPS quality context, with field-level provenance back to the federal source.

Source: CMS NPPES NPI Registry — supply by state·Snapshot: 2026-05-06·Method: nppes-supply-by-state/v2026.05·ID: nppes-supply/obgyn
8,572Active Obstetrics & Gynecology providers (NPPES)As of 2026-05-06 · across all 50 states + DC
CaliforniaState with the most providers888 active providers
51States + DC coveredEvery jurisdiction in the NPPES supply file

8,572 active Obstetrics & Gynecology providers are registered in the CMS NPPES NPI Registry across all 50 states and the District of Columbia, snapshotted 2026-05-06. The table below shows how that supply is distributed by state — both the raw active-provider count and the population-adjusted density (providers per 100,000 residents, U.S. Census PEP). Each record carries field-level provenance back to its federal source.

Obstetrics & Gynecology providers by state

All 51 jurisdictions, ranked by active-provider count. Density rank is 1 = highest providers per 100,000 residents. Population denominators are U.S. Census Bureau PEP V2025 estimates.

Obstetrics & Gynecology active provider supply by U.S. state, NPPES snapshot 2026-05-06
StateActive providersPer 100kDensity rank
California8882.328/51
New York7093.68/51
Florida707310/51
Texas6702.133/51
Pennsylvania3722.812/51
North Carolina3513.29/51
Massachusetts2914.12/51
Georgia2842.521/51
Illinois2802.231/51
Ohio2702.325/51
New Jersey2492.618/51
Michigan2442.422/51
Virginia2432.813/51
Maryland2363.85/51
Washington1832.323/51
Tennessee1632.327/51
Arizona1622.134/51
Colorado1592.715/51
Oregon1553.66/51
Connecticut14843/51
Indiana1432.136/51
Missouri1402.229/51
Minnesota1332.324/51
Kentucky1262.714/51
South Carolina1192.232/51
Wisconsin1111.941/51
Alabama951.842/51
Louisiana821.843/51
Arkansas692.230/51
Nevada682.135/51
Utah681.938/51
Iowa64237/51
New Mexico64311/51
District of Columbia588.31/51
Oklahoma471.149/51
Kansas421.445/51
Rhode Island403.67/51
Hawaii382.617/51
Maine362.619/51
Mississippi361.248/51
West Virginia331.940/51
New Hampshire322.326/51
Montana302.616/51
Vermont2644/51
Nebraska251.247/51
Delaware201.939/51
Idaho180.950/51
Wyoming152.620/51
Alaska131.844/51
North Dakota101.346/51
South Dakota70.851/51
Source: CMS NPPES NPI Registry + U.S. Census PEP V2025·Snapshot: 2026-05-06·Method: nppes-supply-by-state/v2026.05·ID: nppes-supply/obgyn

Quality context: MIPS scores

Fonteum publishes the national CMS Quality Payment Program (QPP) MIPS score distribution. A per-specialty cross-tab is not yet available in the public QPP release, so the figures below are national across all participating clinicians — not specific to Obstetrics & Gynecology.

83.06National mean MIPS scorePY2023 · all clinicians
85.5%High performers (score ≥ 75)477,137 clinicians scored
2.4%Penalty track (score < 18.75)Downward Medicare adjustment
A MIPS score reflects documentation and reporting completeness within the QPP program — not clinical outcomes. To look up an individual clinician’s MIPS score by NPI, use the MIPS score lookup. For the full national distribution and methodology, read the MIPS score distribution study (PY2023).
Source: CMS Quality Payment Program — MIPS individual scores (PY2023)·Snapshot: 2026-05-25·Method: qpp-mips/v1·ID: cms-qpp-mips
Sample provider records
  • NPI 1003009473 · HACKENSACK, NJ
  • NPI 1003013913 · DEARBORN HEIGHTS, MI
  • NPI 1003017526 · FAYETTEVILLE, GA
  • NPI 1003022120 · MODESTO, CA
  • NPI 1003026493 · FORT WAYNE, IN
  • NPI 1003042680 · HERSHEY, PA
  • NPI 1003047515 · PLEASANTON, CA
  • NPI 1003058025 · SEATTLE, WA
  • NPI 1003059825 · LAKE MARY, FL
  • NPI 1003079013 · EDINA, MN
  • NPI 1003091778 · DALLAS, TX
  • NPI 1003129420 · HILO, HI
  • NPI 1003136151 · SAINT LOUIS, MO
  • NPI 1003158809 · GREENSBORO, NC
  • NPI 1003179581 · BILLINGS, MT
  • NPI 1003194853 · AUSTIN, TX
  • NPI 1003201781 · MONROEVILLE, PA
  • NPI 1003233578 · ST PETERSBURG, FL
  • NPI 1003243361 · BETHLEHEM, PA
  • NPI 1003258138 · MACON, GA
  • NPI 1003279209 · STANFORD, CA
  • NPI 1003279845 · OVIEDO, FL
  • NPI 1003310228 · SAN JOSE, CA
  • NPI 1003330572 · JOHNSON CITY, TN
  • NPI 1003348384 · HOUSTON, TX
  • NPI 1003357245 · LEBANON, NH
  • NPI 1003376831 · SAN JOSE, CA
  • NPI 1003437260 · HARTSDALE, NY
  • NPI 1003476615 · LEXINGTON, KY
  • NPI 1003495615 · CLEVELAND, OH
  • NPI 1003498734 · INDIANAPOLIS, IN
  • NPI 1003516311 · OKLAHOMA CITY, OK
  • NPI 1003802117 · AUGUSTA, GA
  • NPI 1003803867 · IOWA CITY, IA
  • NPI 1003807082 · LAKE MARY, FL
  • NPI 1003809815 · WILLOW GROVE, PA

Related

Other tracked specialties with live NPPES supply data, plus the underlying dataset and methodology.

  • Cardiology providers
  • Chiropractic providers
  • Dermatology providers
  • Gastroenterology providers
  • Neurology providers
  • Oncology (Medical) providers

NPPES dataset · Methodology · Browse providers by state · Provider access-gap tool

Frequently asked questions

How many Obstetrics & Gynecology providers are there in the United States?

Fonteum tracks the active Obstetrics & Gynecology providers registered in the CMS NPPES NPI Registry across all 50 states and the District of Columbia. The national total and per-state breakdown are shown in the distribution table on this page, sourced from the NPPES supply file.

Which states have the most Obstetrics & Gynecology providers?

By active-provider count, the states with the most Obstetrics & Gynecology providers are California, New York, Florida. California has the most (888 active providers). Full per-state counts are in the distribution table above.

Where are Obstetrics & Gynecology providers most scarce relative to population?

Adjusted for population (providers per 100,000 residents, U.S. Census PEP), South Dakota, Idaho, Oklahoma have the lowest Obstetrics & Gynecology provider density in the current snapshot. Density rank is shown for every state in the table above.

Does Fonteum report MIPS quality scores for Obstetrics & Gynecology?

Fonteum publishes the national CMS Quality Payment Program MIPS score distribution (mean 83.06, 85.5% of clinicians scored at or above the high-performer threshold of 75). A per-specialty cross-tab is not yet available in the public QPP release, so these figures are national rather than specific to Obstetrics & Gynecology. Individual clinician scores can be looked up by NPI with the MIPS score lookup tool.

What does "active provider" mean in this data?

An active provider is an NPI record in the CMS NPPES NPI Registry whose primary taxonomy classifies it under the Obstetrics & Gynecology specialty, in the snapshot Fonteum ingested. The count reflects registered providers, not practicing headcount or facility affiliations.

Where does this Obstetrics & Gynecology provider data come from?

Provider counts come from the CMS National Provider Identifier (NPPES) registry; population denominators for the per-100k density come from the U.S. Census Bureau Population Estimates Program (PEP V2025). Every figure carries field-level provenance back to its federal source. See the methodology page and the NPPES dataset page for full detail.

The substrate, by the numbers

9.2Mgraph entitiesProviders, organizations, owners, and facilities
15.7Mlinked identifiersNPIs, CCNs, LEIs and more, resolved to entities
5Mgraph edgesSource-attested relationships between entities
44federal source familiesDistinct CMS, OIG, HRSA, FDA and peer datasets
35dataset pagesCitable, downloadable /data catalog pages
65reproducible studiesEach shipping the SQL behind its figures

Built on the authoritative federal record

The primary sources, named on every page.

These are the federal agencies whose public datasets Fonteum ingests and attributes — the issuing authorities, not customers or partners. Every figure on the site links back to one of them.

  • CMS
  • HHS-OIG
  • HRSA
  • FDA
  • NLM
  • NUCC
  • Census
  • BLS
  • BEA

See the full source registry, with license and refresh cadence for each →

Reproducible by design

Every figure traces to its federal source.

14-tuple provenance

Every rendered fact ties to a source URL, dataset ID, snapshot date, row key, and SHA-256 — the full chain-of-custody record.

Reproducible SQL

Each study ships the exact query behind its figures, run against the cited federal snapshot. Re-run it yourself.

Daily reconciliation

Published counts are reconciled against the upstream federal datasets on a daily cadence, with drift logged.

Named medical review

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

Read the full provenance and attestation methodology →

Two doors

Use the free API and open data

Query providers, facilities, sanctions, and quality scores — each field carrying its federal source. Self-serve, no call to start.

Explore the API →Browse the data catalog →

Talk to us

Managed pilots, enterprise terms, and audit-ready, signed attestation packages for compliance, risk, and research teams.

Talk to us →
Fonteum
Platform
Platform overviewAPIMCP serverFHIR R4 APIBulk exportAttestation & audit packReconciliationEntity graphSnapshots
Solutions
All solutionsExclusion & sanctions screeningCredentialing & enrichmentAudit evidenceProvider data for AI / RAGM&A & network diligenceCompliance & riskDevelopers & AI teams
Data & sources
Coverage & sourcesBrowse all datasetsState Medicaid exclusionsFreshnessMethodologyCare CompareSanctionsOwnershipStaffingDeficienciesSpecial Focus Facilities
Developers
Developer hubDocsAPI referenceQuickstartStatusChangelogSDKs & integrationsWebhooks
Research
Research hubHospital margin gapProvider access gapsGlossaryComparisonsCitationsWhy Fonteum
Company
AboutPressCustomersPricingContactEditorial policyCorrections
Trust & legal
TrustQualitySecurityPrivacy policyTerms of serviceMedical disclaimer

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

© 2026 Fonteum LLC. All rights reserved.

·hello@fonteum.com

The U.S. healthcare graph AI can cite — every fact carries its source.

Request access→