Dr. Nancy N. Pham-Thomas, MD

  • Pleasanton, CA
  • OB-GYN
NPI1205099074PAC ID2062691405
Medicare services, 2024
14
Medicare patients, 2024
26
Part D claims, 2024
44
Publications
1
Hospital affiliations
1
Practice address
5555 West Las Positas Boulevard, Pleasanton, CA 94588
Practice phone
Call (925) 847-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Stanford Health Care Tri-Valley

Hospital · Pleasanton, California

See all 3 affiliations

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Dr. Nancy N. Pham-Thomas is an OB-GYN in Pleasanton, California

Dr. Pham-Thomas practices at Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University.

Dr. Pham-Thomas' NPI, 1205099074, was assigned on July 2, 2008. Dr. Pham-Thomas graduated from Wake Forest School of Medicine in 2006. Dr. Pham-Thomas' California license number on file is A112865.

NPI and contact details
Medicare PAC ID
2062691405
NPI enumeration date
July 2, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(925) 847-3000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
46
Medical school graduation
2006

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Nancy N. Pham-Thomas practices at Stanford Health Care Tri-Valley in Pleasanton, California

Dr. Pham-Thomas' primary practice is Stanford Health Care Tri-Valley, at 5555 West Las Positas Boulevard, Pleasanton, CA 94588 in Alameda County. The practice phone is (925) 847-3000.

Source: Dmand AI Affiliation Data

Dr. Nancy N. Pham-Thomas is affiliated with 2 sites of care and 1 medical group

Dr. Pham-Thomas' primary practice is Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Pham-Thomas to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Pham-Thomas

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Nancy N. Pham-Thomas' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pham-Thomas practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Stanford Health Care Tri-ValleyAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Nancy N. Pham-Thomas is one of 4,642 OB-GYNs in California

Obstetrics and gynecology is Dr. Pham-Thomas' primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Pham-Thomas is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Pham-Thomas' licenses on file in 3 states: California, Washington and Pennsylvania.

Specialties and state licenses

  • Obstetrics and gynecology, CaliforniaPrimaryLicense A112865 · 2010 to 2025 · taxonomy 207V00000X
  • Washington license2015
  • Pennsylvania license2006 to 2010

Clinical focus

Dmand AI lists menopause among the conditions Dr. Pham-Thomas treats.

OB-GYNs near Dr. Pham-Thomas

Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Nancy N. Pham-Thomas billed Medicare for 14 services in 2024

CMS data shows 14 Medicare services from Dr. Pham-Thomas across 1 procedure code in 2024, for 26 Medicare patients. Medicare paid $669 for them. Every service was in an office.

Medicare services, 202414
Medicare patients26
Paid by Medicare$669
Procedure codes1

Dr. Pham-Thomas' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Other services
2023: 112024: 1427%

Dr. Pham-Thomas compared with the California median for OB-GYNs, 2024

  • Dr. Pham-Thomas
  • California median
Medicare services
14vs 5876% below
Medicare patients
26vs 5250% below
Part D claims
43vs 3523% above

Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.

Dr. Pham-Thomas' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Pham-Thomas

Need commercial claims for Dr. Pham-Thomas?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pham-Thomas and other OB-GYNs in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Nancy N. Pham-Thomas treated 26 Medicare patients in 2024, average age 67

CMS counts 26 Medicare patients who saw Dr. Pham-Thomas in 2024. 73% of them have high cholesterol, and 46% have high blood pressure. Their average risk score is 0.68, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Pham-Thomas' median patient age at 37, with 99% women.

Medicare patients, 202426
Average age67
Average risk score0.68

Chronic conditions among Dr. Pham-Thomas' Medicare patients, 2024

  1. High cholesterol73%
  2. High blood pressure46%

Share of Medicare patients with each condition. A patient can have several.

Dr. Pham-Thomas' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 37

Patient panel by sex, all payers

  • Women99%
  • Men0%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Nancy N. Pham-Thomas wrote 44 Medicare Part D claims in 2024

In 2024, Dr. Pham-Thomas wrote 44 Medicare Part D claims for 21 patients. 59% of them were for generic drugs. CMS names the drug for 43 of them, across 3 drugs with 11 or more claims each, at $12,861 in total drug cost. In 2022, CMS named 33 claims across 2 drugs.

Part D claims, 202444
Drugs named by CMS3
Total drug cost$12,861
Part D patients21

Dr. Pham-Thomas' Part D claims by kind of drug, 2024

  • Generic26 claims59%
  • Brand-name18 claims41%

Dr. Pham-Thomas' most prescribed drugs by claims, 2023

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 332023: 4330%

Drugs named by CMS: 3 in 2023, 2 in 2022.

See all prescribing by Dr. Pham-Thomas

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Nancy N. Pham-Thomas takes part in Medicare

Dr. Pham-Thomas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Nancy N. Pham-Thomas has 1 publication on record

Dmand AI links 1 paper to Dr. Pham-Thomas. Dr. Pham-Thomas' most frequent co-author is Nigel Pereira, MD.

Papers1

Dr. Pham-Thomas' most frequent co-authors

Recent publications by Dr. Pham-Thomas

See all 1 publications and co-authors

See who Dr. Pham-Thomas researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Pham-Thomas works with, so you can find a warm path to the right OB-GYNs.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Nancy N. Pham-Thomas received $165 in industry payments from 2016 to 2018

CMS Open Payments shows 5 general payments to Dr. Pham-Thomas from 4 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $101.

General payments to Dr. Pham-Thomas by program year, 2016 to 2018

Companies that paid Dr. Pham-Thomas the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Pham-Thomas

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Nancy N. Pham-Thomas has 1 award and honors on record

Dmand AI lists 1 award for Dr. Pham-Thomas.

Awards and honors for Dr. Pham-Thomas

  1. Undated
    • ACOG Fellow

Source: Dmand AI Professional Profile Data

Dr. Nancy N. Pham-Thomas graduated from Wake Forest School of Medicine

Dr. Pham-Thomas graduated from Wake Forest School of Medicine in 2006. Dr. Pham-Thomas is a member of American College of Obstetricians and Gynecologists.

  1. Medical schoolWake Forest School of Medicine
  2. Board certified in obstetrics & gynecologyAmerican Board of Obstetrics and Gynecology

Source: Dmand AI Professional Profile Data

Dr. Nancy N. Pham-Thomas accepts plans from 11 insurance carriers

Dr. Pham-Thomas is in network with 11 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Alliant Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +3 more carriersWith a free account

Plan types Dr. Pham-Thomas accepts, by number of carriers

  1. PPO7
  2. HMO6
  3. EPO4
  4. Medicare4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Nancy N. Pham-Thomas's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Nancy N. Pham-Thomas

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Nancy N. Pham-Thomas' NPI number?

Dr. Nancy N. Pham-Thomas' NPI number is 1205099074. It was assigned on July 2, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Nancy N. Pham-Thomas?

Dr. Nancy N. Pham-Thomas is an OB-GYN in Pleasanton, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Dr. Nancy N. Pham-Thomas practice?

Dr. Pham-Thomas practices at 5555 West Las Positas Boulevard, Pleasanton, CA 94588. Dr. Pham-Thomas' primary practice is Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University. Dmand AI also links Dr. Pham-Thomas to 1 group practice or clinic.

What is Dr. Nancy N. Pham-Thomas' office phone number?

The practice phone on file for Dr. Pham-Thomas is (925) 847-3000.

What is Dr. Nancy N. Pham-Thomas' medical license number?

Dr. Pham-Thomas' California license number on file is A112865, one of the licenses on file in 3 states.

Which states has Dr. Nancy N. Pham-Thomas been licensed in?

Dmand AI has state licenses on file for Dr. Pham-Thomas in California (2010 to 2025), Washington (2015) and Pennsylvania (2006 to 2010).

Which hospitals is Dr. Nancy N. Pham-Thomas affiliated with?

Dr. Pham-Thomas practices at Stanford Health Care Tri-Valley in Pleasanton, California.

What medical group is Dr. Nancy N. Pham-Thomas part of?

Dr. Pham-Thomas is linked to Palo Alto Foundation Medical Group.

Does Dr. Nancy N. Pham-Thomas accept Medicare?

Yes. CMS data shows Dr. Pham-Thomas billed Medicare for 14 services in 2024, and Dr. Pham-Thomas accepts Medicare assignment.

How many Medicare patients does Dr. Nancy N. Pham-Thomas see?

CMS counts 26 Medicare patients who saw Dr. Pham-Thomas in 2024, with an average age of 67.

Show 9 more questionsShow fewer questions

Is Dr. Nancy N. Pham-Thomas board certified?

Yes. Dr. Pham-Thomas is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.

What services does Dr. Nancy N. Pham-Thomas bill to Medicare?

In 2024, Dr. Pham-Thomas' most billed Medicare services were medicare service (G0101).

Where did Dr. Nancy N. Pham-Thomas go to medical school?

Dr. Pham-Thomas graduated from Wake Forest School of Medicine in 2006.

What drugs does Dr. Nancy N. Pham-Thomas prescribe most?

In 2023 Medicare Part D data, Dr. Pham-Thomas' most prescribed drugs by claims were Estradiol, Prempro and Yuvafem.

Has Dr. Nancy N. Pham-Thomas received payments from drug or device companies?

CMS Open Payments shows $165 in general payments to Dr. Pham-Thomas from 4 companies from 2016 to 2018. The largest total came from Boston Scientific Corporation.

How long has Dr. Nancy N. Pham-Thomas been practicing?

Dr. Pham-Thomas graduated from medical school in 2006, 20 years ago.

Does Dr. Nancy N. Pham-Thomas do research?

Dmand AI links 1 publication to Dr. Pham-Thomas.

Who does Dr. Nancy N. Pham-Thomas publish with?

Dr. Pham-Thomas' most frequent co-authors are Nigel Pereira, MD (1 shared paper).

What insurance does Dr. Nancy N. Pham-Thomas accept?

Dr. Pham-Thomas is in network with 11 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.

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