NPPES file of Aug 9, 2026

Joyce Hansen, M.D.

Internal Medicine Physician · San Francisco, CA

Joyce Hansen, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1639190085, issued on Jul 21, 2006. Check the license (California A34890, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1639190085
Name
Joyce Hansen
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A34890 CA
Self-reported in NPPES; status is on the state search
Practice location
3801 Sacramento St, San Francisco, CA 94118
Phone
(415) 600-2402
Enumerated
Jul 21, 2006
Record last updated
Oct 25, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(415) 379-9870
Medicare enrollment
Enrolled (PECOS I20100126000671); accepts Medicare assignment
Medical or professional school
Baylor College Of Medicine, 1978
Telehealth
Offers telehealth (CMS)
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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8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 3801 Sacramento St

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

  1. Toni Brayer, MDInternal Medicine Physician1952412520
  2. Jennifer Burgis, M.D.Pediatric Gastroenterology Physician1114197019
  3. Lei Choi, M.D.Internal Medicine Physician1811067911
  4. Sally Daganzo, M.D.Internal Medicine Physician1811210412
  5. Vanessa Dumont, N.P.Adult Health Nurse Practitioner1760851679
  6. Jill Einstein, MDInternal Medicine Physician1629126354

Verify Joyce Hansen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A34890    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
Open the California license search

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38% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,984 Medicare Part D claims for 175 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 37 claims were for opioids.

  1. Joyce Hansen1,984
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium200 claims
  2. Amlodipine Besylate177 claims
  3. Rosuvastatin Calcium98 claims
  4. Lisinopril90 claims
  5. Levothyroxine Sodium61 claims
  6. Simvastatin58 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.

Industry payments in 2024: $19.27

1 payment: education; the largest payer was Pfizer Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joyce Hansen$19.27
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joyce Hansen among 17,696 internal medicine physician records in California

Joyce Hansen, 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 fileYes · 63% of these records are
  • Graduated1978 · median 2004 among the 11,065 with a school on file
  • Record last updated2011 · 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 →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nikola Bukurov, M.D.San Francisco, CA 941181861423279
  2. Lee Tat Chan, M.D.San Francisco, CA 941181992728414
  3. Randolph Chase, M.D.San Francisco, CA 941181063428225
  4. Catherine Collins, M.D.San Francisco, CA 941181346265790
  5. Robert Dobrow, MDSan Francisco, CA 941181356336051
  6. Karen Khoo, MDSan Francisco, CA 941181629031430
  7. Eric Kwok, M.D.San Francisco, CA 941181447231618
  8. Stephen Lee, M.D.San Francisco, CA 941181053327288

Common questions

What is Joyce Hansen, M.D.'s NPI number?

Joyce Hansen, M.D.'s National Provider Identifier (NPI) is 1639190085, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joyce Hansen, M.D. located?

The NPPES record lists a practice address at 3801 Sacramento St, San Francisco, CA, 94118. Phone: (415) 600-2402. Providers update this record themselves, so call before visiting.

How can I verify Joyce Hansen, M.D.'s license?

NPPES lists California license number A34890, 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 Joyce Hansen, M.D. prescribe under Medicare Part D?

In 2024, Joyce Hansen, M.D. had 1,984 Medicare Part D claims for 175 beneficiaries; 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.