NPPES file of Aug 9, 2026

Louise Huang, M.D.

Obstetrics & Gynecology Physician · Santa Rosa, CA

Louise Huang, M.D. is an obstetrics & gynecology physician with a practice address in Santa Rosa, California, and NPI 1205948544, issued on Aug 31, 2006. Check the license (California A78034, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205948544
Name
Louise Huang
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A78034 CA
Self-reported in NPPES; status is on the state search
Practice location
500 Doyle Park Dr, Santa Rosa, CA 95405
Phone
(707) 579-1102
Enumerated
Aug 31, 2006
Record last updated
Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(707) 579-1386
Medicaid ID
GR088200 CA
Medicare enrollment
Enrolled (PECOS I20081222000033); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →

Also registered at 500 Doyle Park Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nicholas Anton, MDInternal Medicine Physician1659364933
  2. Razi Arifuddin, MDGastroenterology Physician1124085410
  3. Chad Barylski, NP-C, RN, DC, DACBSPNurse Practitioner1932358553
  4. Joshua Beirne, M.D.Gastroenterology Physician1841216041
  5. George Bisbee, MDInternal Medicine Physician1235122516
  6. Deborah Britt, M.D.Pediatrics Physician1316959307

Verify Louise Huang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A78034    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

66% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

274 Medicare Part D claims for 159 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Louise Huang274
  2. Specialty average165

Most prescribed

  1. Estradiol89 claims
  2. Clobetasol Propionate25 claims
  3. Progesterone22 claims
  4. Estring17 claims
  5. Misoprostol13 claims
  6. Yuvafem13 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Louise Huang among 5,088 obstetrics & gynecology physician records in California

Louise Huang, M.D. 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1998 · median 2004 among the 2,700 with a school on file
  • Record last updated2021 · 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 Santa Rosa → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Sahar Doctorvaladan, MDSanta Rosa, CA 954051285957936
  2. Lela Emad, M.D.Santa Rosa, CA 954051811902612
  3. Bobby Field, MDSanta Rosa, CA 954051699739912
  4. Natasha Kahl, MDSanta Rosa, CA 954051942252911
  5. Karen Leung, MDSanta Rosa, CA 954051346206463
  6. Susan Logan, M.D.Santa Rosa, CA 954051982716221
  7. Gregory Sacher, MDSanta Rosa, CA 954051972682011
  8. Estrelania Williams, M.D.Santa Rosa, CA 954051164816252

Common questions

What is Louise Huang, M.D.'s NPI number?

Louise Huang, M.D.'s National Provider Identifier (NPI) is 1205948544, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Louise Huang, M.D. located?

The NPPES record lists a practice address at 500 Doyle Park Dr, Santa Rosa, CA, 95405. Phone: (707) 579-1102. Providers update this record themselves, so call before visiting.

How can I verify Louise Huang, M.D.'s license?

NPPES lists California license number A78034, 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 Louise Huang, M.D. prescribe under Medicare Part D?

In 2024, Louise Huang, M.D. had 274 Medicare Part D claims for 159 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.