William Y. Hoffman, MD
Plastic Surgery Physician · San Francisco, CA
William Y. Hoffman, MD is a plastic surgery physician with a practice address in San Francisco, California, and NPI 1659339422, issued on May 2, 2006. Check the license (California G38023, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Y. Hoffman
- Credential
- MD
- Primary taxonomy
- Plastic Surgery Physician 208200000X
- License number
- G38023 CA
Self-reported in NPPES; status is on the state search - Practice location
- 350 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 353-4287
- Enumerated
- May 2, 2006
- Record last updated
- Jun 6, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (415) 353-4330
- Medicaid ID
- 0G3802300 CA
- Medicare enrollment
- Enrolled (PECOS I20080306000708); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 1977
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest plastic surgery physician records → All 894 in California → Look up another NPI →
Also registered at 350 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Blum, MDCardiovascular Disease Physician1972568889
- Jennifer Cademartori, NPFamily Nurse Practitioner1770504300
- Hubert Chen, M.D.Pulmonary Disease Physician1215042957
- Linda Clever, MDOccupational Medicine Physician1871558932
Verify William Y. Hoffman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G38023Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average plastic surgery physician in 2024
16 Medicare Part D claims, against an average of 93 among the 3,527 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.
Bills Medicare through one group practice
- Ucsf Dept OF SurgerySan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Y. Hoffman among 894 plastic surgery physician records in California
William Y. Hoffman, MD is one of 894 plastic surgery 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 3% of them.
- NPI issued2006 · 3% of these records are older, 61% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1977 · median 2002 among the 346 with a school on file
- Record last updated2008 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Plastic Surgery Physician providers in California
There are 894 plastic surgery physician records in California.
All 894 in California → Every provider in San Francisco → Plastic Surgery Physician nationwide →
The 8 plastic surgery physician records with the nearest ZIP codes
- Robert Foster, MDSan Francisco, CA 941431295791648
- Michael Holland, M.D.San Francisco, CA 941431386038768
- Walter Lin, M.D.San Francisco, CA 941431679862635
- Carrie McCloskey, MDSan Francisco, CA 941431073839437
- Mary McGrath, MDSan Francisco, CA 941431912965781
- Khashayar Mohebali, MDSan Francisco, CA 941431437331360
- Audrey Nguyen, M.D.San Francisco, CA 941431437578507
- Hunter Oliver-AllenSan Francisco, CA 941431255759320
Common questions
What is William Y. Hoffman, MD's NPI number?
William Y. Hoffman, MD's National Provider Identifier (NPI) is 1659339422, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Y. Hoffman, MD located?
The NPPES record lists a practice address at 350 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 353-4287. Providers update this record themselves, so call before visiting.
How can I verify William Y. Hoffman, MD's license?
NPPES lists California license number G38023, 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 William Y. Hoffman, MD prescribe under Medicare Part D?
In 2024, William Y. Hoffman, MD had 16 Medicare Part D claims; the average among plastic surgery physician prescribers was 93. 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.