Gail Altschuler, M.D.
Adult Medicine Physician · Novato, CA
Gail Altschuler, M.D. is an adult medicine physician with a practice address in Novato, California, and NPI 1972642098, issued on Feb 5, 2007. Check the license (California G 041343, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gail Altschuler
- Credential
- M.D.
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- G 041343 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Professional Center Dr, Novato, CA 94947
- Phone
- (415) 897-9800
- Enumerated
- Feb 5, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 897-8010
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 400 Professional Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Janet Nunnally, N.P.Family Nurse Practitioner1619067469
Verify Gail Altschuler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G 041343Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average adult medicine physician in 2024
21 Medicare Part D claims, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D.
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.
Gail Altschuler among 386 adult medicine physician records in California
Gail Altschuler, M.D. is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 49% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 48% of these records are
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in Novato → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Michael Steward, MDNovato, CA 949471932395712
- Jonathan Delson, MDNovato, CA 949451891774113
- Robert Belknap, MDMill Valley, CA 949411336217306
- William Williams, MDSan Quentin, CA 949641407034473
- Tammy Hunter-Horton, FNP-BCCorte Madera, CA 949251366373185
- Geoffrey Collins, M.D.Belvedere, CA 949201295123701
- John Andrew, M.D.Greenbrae, CA 949041841220209
- Jonathan Dietz, D.O.San Rafael, CA 949011366566499
Common questions
What is Gail Altschuler, M.D.'s NPI number?
Gail Altschuler, M.D.'s National Provider Identifier (NPI) is 1972642098, issued on Feb 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gail Altschuler, M.D. located?
The NPPES record lists a practice address at 400 Professional Center Dr, Novato, CA, 94947. Phone: (415) 897-9800. Providers update this record themselves, so call before visiting.
How can I verify Gail Altschuler, M.D.'s license?
NPPES lists California license number G 041343, 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 Gail Altschuler, M.D. prescribe under Medicare Part D?
In 2024, Gail Altschuler, M.D. had 21 Medicare Part D claims; the average among adult medicine physician prescribers was 3,002. 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.