NPPES file of Aug 9, 2026

Joel M. Palefsky, MD

Infectious Disease Physician · San Francisco, CA

Joel M. Palefsky, MD is an infectious disease physician with a practice address in San Francisco, California, and NPI 1336191345, issued on May 17, 2006. Check the license (California G54209, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336191345
Name
Joel M. Palefsky
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
G54209 CA
Self-reported in NPPES; status is on the state search
Practice location
1600 Divisadero St, San Francisco, CA 94115
Phone
(415) 353-7100
Enumerated
May 17, 2006
Record last updated
Jul 13, 2026
Fax
(415) 353-7150
Medicaid ID
00G542090 CA
Medicare enrollment
Enrolled (PECOS I20080221000304); accepts Medicare assignment
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 1600 Divisadero St

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

  1. Betsy Althaus, PHARM.D.Pharmacist1366650657
  2. Mehrdad Arjomandi, MDCritical Care Medicine (Internal Medicine) Physician1912951153
  3. Chloe Atreya, MD, PHDMedical Oncology Physician1326058777
  4. Ronald Balassanian, MDAnatomic Pathology & Clinical Pathology Physician1043282379
  5. Christopher Benz, M.D.Medical Oncology Physician1457381014
  6. Emily Bergsland, MDMedical Oncology Physician1295792729

Verify Joel M. Palefsky in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G54209
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $7,130.55

14 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joel Palefsky$7,130.55
  2. Specialty average$4,362.19

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. University OF California San FranciscoSan Francisco, CA

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

Joel M. Palefsky among 1,119 infectious disease physician records in California

Joel M. Palefsky, MD is one of 1,119 infectious disease 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 54% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1980 · median 2003 among the 735 with a school on file
  • Record last updated2026 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. David Busch, M.D.San Francisco, CA 941151942343975
  2. Andrew FaulkSan Francisco, CA 941151598224222
  3. Shelley Gordon, M.D.San Francisco, CA 941151841334521
  4. Erin Hsu, M.D.San Francisco, CA 941151366481509
  5. John Nienow, MDSan Francisco, CA 941151861472649
  6. Lory Wiviott, M.D.San Francisco, CA 941151548395437
  7. Stephen Cohen, MDSan Francisco, CA 941161003241878
  8. Lisa DanzigSan Francisco, CA 941141497489629

Common questions

What is Joel M. Palefsky, MD's NPI number?

Joel M. Palefsky, MD's National Provider Identifier (NPI) is 1336191345, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joel M. Palefsky, MD located?

The NPPES record lists a practice address at 1600 Divisadero St, San Francisco, CA, 94115. Phone: (415) 353-7100. Providers update this record themselves, so call before visiting.

How can I verify Joel M. Palefsky, MD's license?

NPPES lists California license number G54209, 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.

What is Joel M. Palefsky, MD's MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.