Leila Sher Alpers, M.D.
Internal Medicine Physician · San Francisco, CA
Leila Sher Alpers, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1881706935, issued on Aug 31, 2006. Check the license (California A81773, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leila Sher Alpers
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A81773 CA
Self-reported in NPPES; status is on the state search - Practice location
- 843 Montgomery St, San Francisco, CA 94133
- Phone
- (415) 390-5820
- Enumerated
- Aug 31, 2006
- Record last updated
- May 28, 2024
- Fax
- (415) 390-5581
- Medicaid ID
- 00A817730 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 843 Montgomery St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mercedes Garay, RNRegistered Nurse1376425348
- Daryl Mata, RNRegistered Nurse1699615104
Verify Leila Sher Alpers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A81773Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
103 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Leila Sher Alpers among 17,696 internal medicine physician records in California
Leila Sher Alpers, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2024 · 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).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
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Common questions
What is Leila Sher Alpers, M.D.'s NPI number?
Leila Sher Alpers, M.D.'s National Provider Identifier (NPI) is 1881706935, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leila Sher Alpers, M.D. located?
The NPPES record lists a practice address at 843 Montgomery St, San Francisco, CA, 94133. Phone: (415) 390-5820. Providers update this record themselves, so call before visiting.
How can I verify Leila Sher Alpers, M.D.'s license?
NPPES lists California license number A81773, 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 Leila Sher Alpers, M.D. prescribe under Medicare Part D?
In 2024, Leila Sher Alpers, M.D. had 103 Medicare Part D claims; 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.