NPPES file of Aug 9, 2026

Schuman Tam, M.D.

Specialist · San Francisco, CA

Schuman Tam, M.D. is a specialist with a practice address in San Francisco, California, and NPI 1184674400, issued on May 10, 2006. Check the license (California G063486, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184674400
Name
Schuman Tam
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G063486 CA
Self-reported in NPPES; status is on the state search
Practice location
6850 Geary Blvd, San Francisco, CA 94121
Phone
(415) 751-6800
Enumerated
May 10, 2006
Record last updated
Oct 10, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(415) 751-6808
Medicaid ID
00G634861 CA
Medicare enrollment
Enrolled (PECOS I20051116000868); may accept Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1987
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6850 Geary Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. James Chen, DOAllergy & Immunology Physician1891870119
  2. Donald German, M.D.Specialist1841391968
  3. Susan Kim, MDAllergy & Immunology Physician1114160405

Verify Schuman Tam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license G063486
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% more Medicare Part D claims than the average specialist in 2024

2,596 Medicare Part D claims for 398 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Schuman Tam2,596
  2. Specialty average1,380

Most prescribed

  1. Montelukast Sodium308 claims
  2. Albuterol Sulfate Hfa234 claims
  3. Ipratropium Bromide133 claims
  4. Breo Ellipta119 claims
  5. Fluticasone Propionate114 claims
  6. Qvar Redihaler106 claims

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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $3,089.99

110 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Schuman Tam$3,089.99
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Schuman Tam among 5,749 specialist records in California

Schuman Tam, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated1987 · median 1989 among the 1,075 with a school on file
  • Record last updated2011 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

666 specialist records list a practice address in San Francisco

They are 666 of the 38,143 NPPES records with a practice address in San Francisco, and 5,749 specialist records in California.

The 8 specialist records with the nearest ZIP codes

  1. Donald German, M.D.San Francisco, CA 941211841391968
  2. Ruby Ghadially, M.D.San Francisco, CA 941211881703882
  3. John Griffiss, M.D.San Francisco, CA 941211205946357
  4. Virginia Griswold, M.D.San Francisco, CA 941211396778304
  5. Karla Kerlikowske, M.D.San Francisco, CA 941211811080484
  6. Young KimSan Francisco, CA 941211679507214
  7. Janielle MooreSan Francisco, CA 941211295125698
  8. Frank Schoenfeld, M.D.San Francisco, CA 941211689787335

Common questions

What is Schuman Tam, M.D.'s NPI number?

Schuman Tam, M.D.'s National Provider Identifier (NPI) is 1184674400, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Schuman Tam, M.D. located?

The NPPES record lists a practice address at 6850 Geary Blvd, San Francisco, CA, 94121. Phone: (415) 751-6800. Providers update this record themselves, so call before visiting.

How can I verify Schuman Tam, M.D.'s license?

NPPES lists California license number G063486, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Schuman Tam, M.D. prescribe under Medicare Part D?

In 2024, Schuman Tam, M.D. had 2,596 Medicare Part D claims for 398 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

What is Schuman Tam, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.