Ann Bich Huyen Nguyen-Traxler, M.D.
Internal Medicine Physician · Berkeley, CA
Ann Bich Huyen Nguyen-Traxler, M.D. is an internal medicine physician with a practice address in Berkeley, California, and NPI 1376770933, issued on Jun 22, 2009. Check the license (California A135433, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ann Bich Huyen Nguyen-Traxler
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A135433 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1510 4TH St Ste 1, Berkeley, CA 94710
- Phone
- (510) 525-8980
- Enumerated
- Jun 22, 2009
- Record last updated
- Oct 19, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (510) 525-8982
- Medicare enrollment
- Enrolled (PECOS I20150812007957); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1510 4TH St Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yifah Yaron, MDInternal Medicine Physician1255582169
Verify Ann Bich Huyen Nguyen-Traxler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A135433Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average internal medicine physician in 2024
9,814 Medicare Part D claims for 562 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 339 claims were for opioids.
Most prescribed
- Atorvastatin Calcium633 claims
- Levothyroxine Sodium581 claims
- Amlodipine Besylate405 claims
- Gabapentin244 claims
- Losartan Potassium233 claims
- Lisinopril224 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: $274.78
13 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Rossmoor Medical Associates IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann Bich Huyen Nguyen-Traxler among 17,696 internal medicine physician records in California
Ann Bich Huyen Nguyen-Traxler, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2009 · median 2004 among the 11,065 with a school on file
- Record last updated2016 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
83 internal medicine physician records list a practice address in Berkeley
They are 83 of the 4,898 NPPES records with a practice address in Berkeley, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Berkeley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christina Garza, M.D.Berkeley, CA 947101942598289
- Else Jensen, M.D.Berkeley, CA 947101790754885
- Anna Levin-Shohat, D.O.Berkeley, CA 947101346407491
- Hiep Nguyen, MDBerkeley, CA 947101588612881
- Payam Parvinchiha, M.D.Berkeley, CA 947101851690622
- Maria Rojas D'Croz, M.D.Berkeley, CA 947101659503290
- Hideyuki Sakata, M.D.Berkeley, CA 947101417905126
- Ranjana Saxena, M.D.Berkeley, CA 947101770552721
Common questions
What is Ann Bich Huyen Nguyen-Traxler, M.D.'s NPI number?
Ann Bich Huyen Nguyen-Traxler, M.D.'s National Provider Identifier (NPI) is 1376770933, issued on Jun 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ann Bich Huyen Nguyen-Traxler, M.D. located?
The NPPES record lists a practice address at 1510 4TH St Ste 1, Berkeley, CA, 94710. Phone: (510) 525-8980. Providers update this record themselves, so call before visiting.
How can I verify Ann Bich Huyen Nguyen-Traxler, M.D.'s license?
NPPES lists California license number A135433, 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 Ann Bich Huyen Nguyen-Traxler, M.D. prescribe under Medicare Part D?
In 2024, Ann Bich Huyen Nguyen-Traxler, M.D. had 9,814 Medicare Part D claims for 562 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.