Kathy Nguyen Walker, M.D. FACOG
Obstetrics & Gynecology Physician · Pasadena, CA
Kathy Nguyen Walker, M.D. FACOG is an obstetrics & gynecology physician with a practice address in Pasadena, California, and NPI 1861495483, issued on May 27, 2005. Check the license (California A62528, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathy Nguyen Walker
- Credential
- M.D. FACOG
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A62528 CA
Self-reported in NPPES; status is on the state search - Practice location
- 960 E Green St Ste 210, Pasadena, CA 91106
- Phone
- (626) 844-8702
- Enumerated
- May 27, 2005
- Record last updated
- Mar 26, 2025
- Fax
- (626) 844-8707
- Medicaid ID
- 00A625280 CA
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 960 E Green St Ste 210
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ann-Marie Mandic-Martinez, PH.D.Clinical Psychologist1376759365
Verify Kathy Nguyen Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A62528Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
278 Medicare Part D claims for 83 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Estradiol88 claims
- Progesterone48 claims
- Estradiol (Twice Weekly)39 claims
- Medroxyprogesterone Acetate14 claims
- Premarin14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $37.59
2 payments; by number, the most common kind was food and beverage; the largest payer was Exeltis, USA Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Kathy Nguyen Walker among 5,088 obstetrics & gynecology physician records in California
Kathy Nguyen Walker, M.D. FACOG is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Pasadena → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Martha Liao, M.D.Pasadena, CA 911061518161728
- Jonathan Tam, M.D.Pasadena, CA 911061013942952
- Alice Yung, MDPasadena, CA 911061851403224
- Alya Ahmad, DOPasadena, CA 911051538796669
- Amanda Barnes, MD/MPHPasadena, CA 911051518480698
- Ashley Benda, D.O.Pasadena, CA 911051295129856
- Kim Bui, M.D.Pasadena, CA 911051164871133
- Emily Chu, MDPasadena, CA 911051053947978
Common questions
What is Kathy Nguyen Walker, M.D. FACOG's NPI number?
Kathy Nguyen Walker, M.D. FACOG's National Provider Identifier (NPI) is 1861495483, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Kathy Nguyen Walker, M.D. FACOG located?
The NPPES record lists a practice address at 960 E Green St Ste 210, Pasadena, CA, 91106. Phone: (626) 844-8702. Providers update this record themselves, so call before visiting.
How can I verify Kathy Nguyen Walker, M.D. FACOG's license?
NPPES lists California license number A62528, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kathy Nguyen Walker, M.D. FACOG prescribe under Medicare Part D?
In 2024, Kathy Nguyen Walker, M.D. FACOG had 278 Medicare Part D claims for 83 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.