Medical Specialty Listing

Obstetrics & Gynecology Specialists in Lancaster, CA

Browse 15 Obstetrics & Gynecology providers listed in NPPES with a practice address in Lancaster, California.

15 Healthcare Providers

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How Lancaster compares with the U.S.

Lancaster has 8.9 clinicians in Obstetrics & Gynecology per 100,000 residents, about 65% of the U.S. rate of 14.

That is 15 active clinicians in Obstetrics & Gynecology with a practice address in Lancaster, for a population of 169,169.

The California rate is 13 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

Too few clinicians in Obstetrics & Gynecology in Lancaster are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Obstetrics & Gynecology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Obstetrics & Gynecology practitioners in Lancaster, CA

Source: CMS PECOS

PECOS Enrolled Specialists 11 In Lancaster, CA

Part B Lab & Imaging Eligible 11 Diagnostic Referrals

DME Ordering Eligible 11 Durable Medical Equipment

Home Health Agency Referrals 11 HHA Ordering Eligible

Showing 1–15 of 15 providers

With recent CMS data first, then A–Z

Dr. Herminia Amezcua , MD

Obstetrics & Gynecology

Active NPI Status

44105 15th St W Ste 405, Lancaster, CA 935344000

Phone: 6617297100

NPI Identifier 1326282385

Obstetrics & Gynecology Specialists in Lancaster, CA

How Lancaster compares with the U.S.

Obstetrics & Gynecology Medicare (PECOS) Enrollment & Ordering Eligibility

Dr. Herminia Amezcua , MD

Dr. Katrina Dionne Baker , MD

Dr. John W Birsner , MD

Dr. Kaitlin Hoff , MD

Dr. George O. Kevly , MD

Dr. Leonard Sunil Kurian , MD

Dr. Simona Mihaela Myers , MD

Dr. Sam Allen , MD

Dr. Oluwamuyiwa Bolonduro , MD

Dr. Suzanne Jose Chaudhry , MD

Dr. Alex Kingsley Danso , MD

Dr. Jackson C Fu , MD

Dr. James Helfrich Mcmillan , MD

Dr. Aki Niihara , MD

Dr. Linda Adele Warren-Watson , MD

Frequently Asked Questions about Obstetrics & Gynecology in Lancaster

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