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ANA M BERMUDEZ
NPI 1679079065
Obstetrics & Gynecology in Castro Valley, CA

Active since April 04, 2018PECOS Enrolled
20642 JOHN DR, CASTRO VALLEY, CA 94546(510) 785-5000 Get Directions Write a Review

NPPES record last updated: October 3, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ana M Bermudez NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANA M BERMUDEZ (NPI 1679079065) is an individual obstetrics & gynecology provider in Castro Valley, California, licensed in California (A167282) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Warren Alpert Medical School Of Brown University (2018).

NPPES Registry Identity

NPI1679079065
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameANA M BERMUDEZ
Location Address20642 JOHN DRCastro Valley, CA 94546-5103
Mailing Address20642 John DrCastro Valley, CA 94546-5103 · (510) 785-5000
Phone(510) 785-5000
Sole ProprietorNo
Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 2018
Enumeration DateApril 4, 2018
Last NPPES UpdateOctober 3, 2022
NPPES CertifiedOctober 3, 2022
✔ NPI 1679079065 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A167282
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
20642 JOHN DR, Castro Valley, CA 94546
Open in Google Maps ↗

Secondary Practice Location 1

Location 1Ucla Ob/Gyn 10833 Le Conte Ave Chs 27-126Los Angeles, CA 90095-0001 · Phone (310) 825-9945

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ana M Bermudez is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5597196147
PECOS Enrollment IDI20250128003574
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Ana Bermudez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chen & Morgan Ob-Gyn Westside PLLC
2,558 mi
Specialist
620 COLUMBUS AVE
New York, NY 10024
  • Reassigned Medicare billing, New York enrollment
  • 6 clinicians in this Medicare group
NPI 1184732760 (212) 580-3866

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94546 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HELEN WOOHEE YANG MD
Internal Medicine
20642 JOHN DR
CASTRO VALLEY, CA 94546
Alameda County (510) 806-2100
LING XU M.D.
Internal Medicine
20642 JOHN DR
CASTRO VALLEY, CA 94546
Alameda County (510) 785-5000
ZACHARY GERARD O'LEARY PA-C
Physician Assistant
20642 JOHN DR
CASTRO VALLEY, CA 94546
Alameda County (888) 924-1036
CHRISTINA K LEE PA-C
Physician Assistant
20642 JOHN DR
CASTRO VALLEY, CA 94546
Alameda County (510) 581-2559
DR. KALAOKALANI CHANDLER M.D.
Obstetrics & Gynecology
20642 JOHN DR
CASTRO VALLEY, CA 94546
Alameda County (510) 785-5000
GAHFORA GORSI NP
Nurse Practitioner
20642 JOHN DR
CASTRO VALLEY, CA 94546
Alameda County (510) 785-5000
NIDHI JOHRI M.D
Internal Medicine
20642 JOHN DR
CASTRO VALLEY, CA 94546
Alameda County (510) 785-5000
DIEGO VALENZUELA INZUNZA
Physician Assistant
20642 JOHN DR
CASTRO VALLEY, CA 94546
Alameda County (510) 581-2559

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ana Bermudez's NPI number?

The NPI number for Ana Bermudez is 1679079065. It was assigned to this individual provider in the NPPES registry on April 4, 2018.

Where is Ana Bermudez located?

Ana Bermudez practices at 20642 John Dr, Castro Valley, CA 94546. The listed phone number is (510) 785-5000.

What is Ana Bermudez's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Ana Bermudez enrolled in Medicare?

Yes. Ana Bermudez is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ana Bermudez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ana Bermudez reassigns Medicare benefits to Chen & Morgan Ob-Gyn Westside PLLC (New York, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ana Bermudez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ana Bermudez was last updated on October 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.