Regina-Celeste Shahnaz Ahmad, M.D., PHD
Dermatology Physician · San Francisco, CA
Regina-Celeste Shahnaz Ahmad, M.D., PHD is a dermatology physician with a practice address in San Francisco, California, and NPI 1861629321, issued on Jun 11, 2009. Check the license (California A113304, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Regina-Celeste Shahnaz Ahmad
- Credential
- M.D., PHD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A113304 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1701 Divisadero St, San Francisco, CA 94115
- Phone
- (415) 353-7800
- Enumerated
- Jun 11, 2009
- Record last updated
- Jan 12, 2022
- Fax
- (415) 353-9654
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 1701 Divisadero St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Amerson, M.D.Dermatology Physician1679732671
- Ryan Arakaki, MDDermatology Physician1063850600
- Timothy Berger, MDDermatology Physician1124079181
- David Buchholz, MDPediatrics Physician1487738191
- Daniel Butler, M.D.Internal Medicine Physician1013320738
- Erin Callahan, ATC, ROTAthletic Trainer1417094053
Verify Regina-Celeste Shahnaz Ahmad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A113304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $23.83
1 payment: food and beverage; the largest payer was Dermavant Sciences, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 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.
Regina-Celeste Shahnaz Ahmad among 2,083 dermatology physician records in California
Regina-Celeste Shahnaz Ahmad, M.D., PHD is one of 2,083 dermatology physician records with a practice address in California. 83% 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 61% of them.
- NPI issued2009 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in San Francisco → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Timothy Berger, MDSan Francisco, CA 941151124079181
- Kerry Blacker, MDSan Francisco, CA 941151841378452
- Mary Connolly, MDSan Francisco, CA 941151942265772
- Quita Cruciger, M.D.San Francisco, CA 941151629161245
- Lindy Fox, MDSan Francisco, CA 941151790738953
- Anna Haemel, M.D.San Francisco, CA 941151962448522
- Frank Jonelis, MDSan Francisco, CA 941151245318849
- Mohammed Kashani-Sabet, M.D.San Francisco, CA 941151629026174
Common questions
What is Regina-Celeste Shahnaz Ahmad, M.D., PHD's NPI number?
Regina-Celeste Shahnaz Ahmad, M.D., PHD's National Provider Identifier (NPI) is 1861629321, issued on Jun 11, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Regina-Celeste Shahnaz Ahmad, M.D., PHD located?
The NPPES record lists a practice address at 1701 Divisadero St, San Francisco, CA, 94115. Phone: (415) 353-7800. Providers update this record themselves, so call before visiting.
How can I verify Regina-Celeste Shahnaz Ahmad, M.D., PHD's license?
NPPES lists California license number A113304, 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.
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.