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NANCY N PHAM-THOMAS MD
NPI 1205099074
Obstetrics & Gynecology in Dublin, CA

Active since July 02, 2008PECOS EnrolledAccepts Medicare Assignment
4000 DUBLIN BLVD, DUBLIN, CA 94568(925) 875-6546 Get Directions Write a Review

NPPES record last updated: May 28, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 28, 2020, Feb 19, 2020 (2 updates tracked since 2020).

About Nancy N Pham-thomas Md NPPES

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

NANCY N PHAM-THOMAS MD (NPI 1205099074) is an individual obstetrics & gynecology provider in Dublin, California, licensed in California (A112865) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Dublin, and is a graduate of Wake Forest University School Of Medicine (2006).

NPPES Registry Identity

NPI1205099074
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameNANCY N PHAM-THOMASCredential: MD
Location Address4000 DUBLIN BLVDDublin, CA 94568-3113
Mailing Address325 Distel CirLos Altos, CA 94022-1408
Phone(925) 875-6546
Sole ProprietorNo
Medical School CMSWake Forest University School Of MedicineGraduated 2006
Enumeration DateJuly 2, 2008
Last NPPES UpdateMay 28, 20202 updates tracked since enumeration
NPPES CertifiedMay 28, 2020
✔ NPI 1205099074 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A112865
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.
4000 DUBLIN BLVD, Dublin, CA 94568
Open in Google Maps ↗

Secondary Practice Location 1

Location 14050 Dublin BlvdDublin, CA 94568-3112 · Phone (925) 875-6100 · Fax (925) 875-6214

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nancy N Pham-thomas Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2062691405
PECOS Enrollment IDI20110201000112
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 Nancy Pham-thomas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation
12 mi
Ambulatory Surgical
3140 KEARNEY ST
Fremont, CA 94538
NPI 1497996524 (510) 498-2819

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94568 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.

DR. MICHELLE M OLIVEIRA M.D.
Obstetrics & Gynecology
4000 DUBLIN BLVD
DUBLIN, CA 94568
Alameda County (925) 875-6546
LEAH SHARON MILLHEISER MD
Obstetrics & Gynecology (Gynecology)
4000 DUBLIN BLVD
DUBLIN, CA 94568
Alameda County (925) 875-6546
NAM X NGUYEN MD
Obstetrics & Gynecology
4000 DUBLIN BLVD
DUBLIN, CA 94568
Alameda County (925) 875-6546
ANUK BURLI
Dermatology
4000 DUBLIN BLVD
DUBLIN, CA 94568
Alameda County (510) 498-2374
HODA M GHANEM M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
4000 DUBLIN BLVD
DUBLIN, CA 94568
Alameda County (925) 875-6100
DR. ADITYA BHARGAVA M.D.
Internal Medicine (Sleep Medicine)
4000 DUBLIN BLVD
DUBLIN, CA 94568
Alameda County (510) 419-8268
SAI SANTOSH KUMAR BHUVANAGIRI M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
4000 DUBLIN BLVD
DUBLIN, CA 94568
Alameda County (510) 498-2357
DR. JOSHUA EDLINGER DPM
Podiatrist (Foot & Ankle Surgery)
4000 DUBLIN BLVD
DUBLIN, CA 94568
Alameda County (510) 498-2086

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 Nancy Pham-thomas's NPI number?

The NPI number for Nancy Pham-thomas is 1205099074. It was assigned to this individual provider in the NPPES registry on July 2, 2008.

Where is Nancy Pham-thomas located?

Nancy Pham-thomas practices at 4000 Dublin Blvd, Dublin, CA 94568. The listed phone number is (925) 875-6546.

What is Nancy Pham-thomas's specialty?

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

Is Nancy Pham-thomas enrolled in Medicare?

Yes. Nancy Pham-thomas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Nancy Pham-thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Pham-thomas reassigns Medicare benefits to Sutter Bay Medical Foundation (Fremont, CA). 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 Nancy Pham-thomas'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 Nancy Pham-thomas was last updated on May 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.