NPPES file of Aug 9, 2026

Jonathan G. Zaroff, MD

Cardiovascular Disease Physician · San Francisco, CA

Jonathan G. Zaroff, MD is a cardiovascular disease physician with a practice address in San Francisco, California, and NPI 1902857279, issued on May 12, 2006. Check the license (California G84684, 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
1902857279
Name
Jonathan G. Zaroff
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
G84684 CA
Self-reported in NPPES; status is on the state search
Practice location
350 Parnassus Ave, San Francisco, CA 94117
Phone
(415) 353-2873
Enumerated
May 12, 2006
Record last updated
Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(415) 353-2528
Medicaid ID
00G846840 CA
Medicare enrollment
Enrolled (PECOS I20070419000208); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 1992
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 350 Parnassus Ave

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

  1. Karen Bagatelos, M.S.N.,N.P.Nurse Practitioner1780881045
  2. Nathan Becker, M.D.Endocrinology, Diabetes & Metabolism Physician1972696250
  3. Eric Buxton, M.D.Endocrinology, Diabetes & Metabolism Physician1134210362
  4. Alan Chong, D.D.SGeneral Practice Dentistry1013265701
  5. Gregory Chong, D.D.S.General Practice Dentistry1023130747
  6. Thomas Cicciarelli, PSY.D.Clinical Psychologist1598871865

Verify Jonathan G. Zaroff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G84684
    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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58% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

1,304 Medicare Part D claims for 234 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Jonathan Zaroff1,304
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate159 claims
  2. Atorvastatin Calcium155 claims
  3. Amlodipine Besylate80 claims
  4. Furosemide75 claims
  5. Spironolactone66 claims
  6. Isosorbide Mononitrate Er48 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: $1,105.30

9 payments; by number, the most common kind was travel and lodging; the largest payer was Abbott Laboratories. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jonathan Zaroff$1,105.30
  2. Specialty average$3,819.56

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. Permanente Medical Group IncSan Francisco, CA

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

Jonathan G. Zaroff among 2,574 cardiovascular disease physician records in California

Jonathan G. Zaroff, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 45% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1992 · median 1999 among the 1,742 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Sergio Bello, MDSan Francisco, CA 941171407868367
  2. William Breall, M.D.San Francisco, CA 941171124042635
  3. James Chun, M.D.San Francisco, CA 941171134143506
  4. Peter Curran, MDSan Francisco, CA 941171366422347
  5. Gary Huang, M.D.San Francisco, CA 941171356633341
  6. Garrett Lee, MDSan Francisco, CA 941171760466981
  7. Albert Lee, M.D.San Francisco, CA 941171053335505
  8. Dana McGlothlin, M.D.San Francisco, CA 941171346285996

Common questions

What is Jonathan G. Zaroff, MD's NPI number?

Jonathan G. Zaroff, MD's National Provider Identifier (NPI) is 1902857279, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan G. Zaroff, MD located?

The NPPES record lists a practice address at 350 Parnassus Ave, San Francisco, CA, 94117. Phone: (415) 353-2873. Providers update this record themselves, so call before visiting.

How can I verify Jonathan G. Zaroff, MD's license?

NPPES lists California license number G84684, 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 Jonathan G. Zaroff, MD prescribe under Medicare Part D?

In 2024, Jonathan G. Zaroff, MD had 1,304 Medicare Part D claims for 234 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.