Dr. William Y. Hoffman, MD

  • San Francisco, CA
  • Plastic surgeon
NPI1659339422PAC ID9335224963
Medicare services, 2024
109
Medicare patients, 2024
110
Part D claims, 2024
16
Publications
64
MIPS score, 2024
98
Practice address
505 Parnassus Ave, Box 0296, San Francisco, CA 94143
Practice phone
Call (415) 353-2733
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

UCSF Helen Diller Medical Center at Parnassus Heights

Hospital · San Francisco, California

See all 13 affiliations

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Dr. William Y. Hoffman is a plastic surgeon in San Francisco, California

Dr. Hoffman practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.

Dr. Hoffman's NPI, 1659339422, was assigned on May 2, 2006. Dr. Hoffman graduated from University of Rochester Medical Center in 1977. Dr. Hoffman holds California license G38023.

NPI and contact details
Medicare PAC ID
9335224963
NPI enumeration date
May 2, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(415) 353-2733
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
75
Medical school graduation
1977

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. William Y. Hoffman practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California

Dr. Hoffman's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.

Source: Dmand AI Affiliation Data

Dr. William Y. Hoffman is affiliated with 7 sites of care and 6 medical groups

Dr. Hoffman's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Hoffman to 6 more group practices and clinics and 5 medical groups, each named with a free account.

See all 13 affiliations for Dr. Hoffman

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. William Y. Hoffman's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hoffman practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSF Helen Diller Medical Center at Parnassus HeightsAvailable with a free account
+6 more sites and 5 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William Y. Hoffman is one of 778 plastic surgeons in California

Plastic surgery is Dr. Hoffman's primary specialty in the NPI Registry, under taxonomy code 208200000X. Dr. Hoffman is board certified in plastic surgery by the American Board of Plastic Surgery. Dmand AI has Dr. Hoffman's licenses on file in 3 states: California, Northern Mariana Islands and Florida.

Specialties and state licenses

  • Plastic surgery, CaliforniaPrimaryLicense G38023 · 1978 to 2026 · taxonomy 208200000X
  • Northern Mariana Islands license2003 to 2021
  • Florida license2017 to 2019

Clinical focus

Dmand AI lists head wound among the conditions Dr. Hoffman treats.

Plastic surgeons near Dr. Hoffman

Counts of plastic surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. William Y. Hoffman billed Medicare for 109 services in 2024

CMS data shows 109 Medicare services from Dr. Hoffman across 4 procedure codes in 2024, all of them office visits, for 110 Medicare patients. Medicare paid $5,612 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024109
Medicare patients110
Paid by Medicare$5,612
Procedure codes4

Dr. Hoffman's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1052024: 1094%

Dr. Hoffman compared with the California median for plastic surgeons, 2024

  • Dr. Hoffman
  • California median
Medicare services
109vs 5888% above
Medicare patients
110vs 5986% above

Medians across 622 plastic surgeons in California with Dmand AI profiles that report each measure.

Dr. Hoffman's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Hoffman

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. William Y. Hoffman treated 110 Medicare patients in 2024, average age 66

CMS counts 110 Medicare patients who saw Dr. Hoffman in 2024. The largest group is 65 to 74, with 50 patients. 74% of them have high cholesterol, and 64% have high blood pressure. 51% are also on Medicaid. Their average risk score is 2.08, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Hoffman's median patient age at 38, with 57% women.

Medicare patients, 2024110
Average age66
Average risk score2.08
Also on Medicaid51%

Dr. Hoffman's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Hoffman's Medicare patients by sex, 2024

  • Women6155%
  • Men4945%

Chronic conditions among Dr. Hoffman's Medicare patients, 2024

  1. High cholesterol74%
  2. High blood pressure64%
  3. Arthritis49%
  4. Mood disorders43%
  5. Depression38%
  6. Anxiety31%
  7. Diabetes29%
  8. Osteoporosis22%

Share of Medicare patients with each condition. A patient can have several.

Dr. Hoffman's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 38

Patient panel by sex, all payers

  • Women57%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. William Y. Hoffman wrote 16 Medicare Part D claims in 2024

In 2024, Dr. Hoffman wrote 16 Medicare Part D claims. 94% of them were for generic drugs.

Part D claims, 202416

Dr. Hoffman's Part D claims by kind of drug, 2024

  • Generic15 claims94%
  • Brand-name and other1 claims6%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. William Y. Hoffman scored 98 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Hoffman for performance year 2024, reported as part of a group. Dr. Hoffman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hoffman as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Hoffman's MIPS scores, performance year 2024

  • 98of 100Final score
  • 92.7of 100Quality
  • 40of 100Improvement Activities
  • 72of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. William Y. Hoffman has 64 publications on record

Dmand AI links 64 papers to Dr. Hoffman, published from 2009 to 2024. 2022 was the busiest year, with 4. The most frequent topics are Surgical Flaps, Cleft Lip and Plastic Surgery Procedures. Dr. Hoffman has published most often in Plast Reconstr Surg. Dr. Hoffman's most frequent co-authors are Robert D. Foster, MD, Scott L. Hansen, MD and Michael Thornton Longaker, MBA, MD.

Papers64
Years published2009 to 2024

Dr. Hoffman's papers by year, 2015 to 2024

Topics Dr. Hoffman writes about most

  • Surgical Flaps
  • Cleft Lip
  • Plastic Surgery Procedures
  • Postoperative Complications
  • Cleft Palate
  • Sheep
  • Disease Models, Animal
  • Facial Bones

Dr. Hoffman's most frequent co-authors

Recent publications by Dr. Hoffman

See all 64 publications and co-authors

See who Dr. Hoffman researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hoffman works with, so you can find a warm path to the right plastic surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. William Y. Hoffman received $6,109 in industry payments from 2016 to 2025

CMS Open Payments shows 20 general payments to Dr. Hoffman from 10 drug and device companies from 2016 to 2025. Accredited education speaker fees make up the largest share, 57% of the total. Synthes GmbH paid the most, $5,080.

General payments to Dr. Hoffman by program year, 2016 to 2025

General payments to Dr. Hoffman by kind, 2016 to 2025

$6.1Kin total
  • Accredited education speaker fees$3,50057%
  • Travel and lodging$1,43423%
  • Food and beverage$1,17419%

Companies that paid Dr. Hoffman the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Hoffman

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. William Y. Hoffman has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Hoffman, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Hoffman

  1. 2012
    • CMS Stage 1 EHR
  2. Undated
    • ACS Fellow
    • Checkbook Top Doc

Source: Dmand AI Professional Profile Data

Dr. William Y. Hoffman graduated from University of Rochester Medical Center

Dr. Hoffman graduated from University of Rochester Medical Center in 1977. Dr. Hoffman is a member of ACS and ASPS.

  1. Medical schoolUniversity of Rochester Medical Center
  2. Board certified in plastic surgeryAmerican Board of Plastic Surgery

Source: Dmand AI Professional Profile Data

Dr. William Y. Hoffman accepts plans from 10 insurance carriers

Dr. Hoffman is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • Excellus BlueCross BlueShield
  • United Healthcare
  • HCSC
  • Regence Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • +2 more carriersWith a free account

Plan types Dr. Hoffman accepts, by number of carriers

  1. Medicare8
  2. PPO7
  3. HMO5
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. William Y. Hoffman's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. William Y. Hoffman

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. William Y. Hoffman's NPI number?

Dr. William Y. Hoffman's NPI number is 1659339422. It was assigned on May 2, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William Y. Hoffman?

Dr. William Y. Hoffman is a plastic surgeon in San Francisco, California. The primary specialty in the NPI Registry is Plastic Surgery Physician (taxonomy code 208200000X).

Where does Dr. William Y. Hoffman practice?

Dr. Hoffman practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. Hoffman's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Hoffman to 6 group practices and clinics and 5 medical groups.

What is Dr. William Y. Hoffman's office phone number?

The practice phone on file for Dr. Hoffman is (415) 353-2733.

What is Dr. William Y. Hoffman's medical license number?

Dr. Hoffman holds California license G38023, one of the licenses on file in 3 states.

Which states has Dr. William Y. Hoffman been licensed in?

Dmand AI has state licenses on file for Dr. Hoffman in California (1978 to 2026), Northern Mariana Islands (2003 to 2021) and Florida (2017 to 2019).

Which hospitals is Dr. William Y. Hoffman affiliated with?

Dr. Hoffman practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California.

What medical group is Dr. William Y. Hoffman part of?

Dr. Hoffman is linked to UCSF Pediatrics. Dmand AI links Dr. Hoffman to 5 more medical groups.

Does Dr. William Y. Hoffman accept Medicare?

Yes. CMS data shows Dr. Hoffman billed Medicare for 109 services in 2024, and Dr. Hoffman accepts Medicare assignment.

Does Dr. William Y. Hoffman offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Hoffman as offering telehealth services.

Show 10 more questionsShow fewer questions

What is Dr. William Y. Hoffman's MIPS score?

Dr. Hoffman's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.

How many Medicare patients does Dr. William Y. Hoffman see?

CMS counts 110 Medicare patients who saw Dr. Hoffman in 2024, with an average age of 66.

Is Dr. William Y. Hoffman board certified?

Yes. Dr. Hoffman is board certified in plastic surgery by the American Board of Plastic Surgery.

What services does Dr. William Y. Hoffman bill to Medicare?

In 2024, Dr. Hoffman's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99212) and office visit, new patient (99203).

Where did Dr. William Y. Hoffman go to medical school?

Dr. Hoffman graduated from University of Rochester Medical Center in 1977.

Has Dr. William Y. Hoffman received payments from drug or device companies?

CMS Open Payments shows $6,109 in general payments to Dr. Hoffman from 10 companies from 2016 to 2025. The largest total came from Synthes GmbH.

How long has Dr. William Y. Hoffman been practicing?

Dr. Hoffman graduated from medical school in 1977, 49 years ago.

Does Dr. William Y. Hoffman do research?

Dmand AI links 64 publications to Dr. Hoffman, published from 2009 to 2024.

Who does Dr. William Y. Hoffman publish with?

Dr. Hoffman's most frequent co-authors are Robert D. Foster, MD (9 shared papers), Scott L. Hansen, MD (8 shared papers) and Michael Thornton Longaker, MBA, MD (8 shared papers).

What insurance does Dr. William Y. Hoffman accept?

Dr. Hoffman is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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