NPPES file of Aug 9, 2026

Jonathan D. Wong, MD

Obstetrics & Gynecology Physician · San Francisco, CA

Jonathan D. Wong, MD is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1780750588, issued on Nov 27, 2006. Check the license (California A49948, 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
1780750588
Name
Jonathan D. Wong
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A49948 CA
Self-reported in NPPES; status is on the state search
Practice location
1520 Stockton Street, San Francisco, CA 94133
Phone
(415) 391-9686
Enumerated
Nov 27, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(415) 433-4726
Medicare enrollment
Enrolled (PECOS I20090123000532); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 1989
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 1520 Stockton Street

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

  1. Daniel ChanSpecialist1356417349
  2. Lydia HsuContinuing Education/Staff Development Registered Nurse1114082005
  3. Peggy HuangDiabetes Educator Registered Nurse1184797003
  4. Jack Huynh, MDInternal Medicine Physician1548334543
  5. Thinn Khaing, M.D.Internal Medicine Physician1396939724
  6. Sihao Lam, MDPediatrics Physician1528132511

Verify Jonathan D. Wong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A49948
    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

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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73% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

45 Medicare Part D claims for 25 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Jonathan Wong45
  2. Specialty average165

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: $242.93

10 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jonathan Wong$242.93
  2. Specialty average$1,030.61

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. North East Medical ServicesSan Francisco, CA

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

Jonathan D. Wong among 5,088 obstetrics & gynecology physician records in California

Jonathan D. Wong, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1989 · median 2004 among the 2,700 with a school on file
  • Record last updated2007 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Esther Chang, M.D.San Francisco, CA 941331699764274
  2. John Ho, M.D.San Francisco, CA 941331073540225
  3. Rena Hu, M.D.San Francisco, CA 941331275774374
  4. Dong Hwang, MDSan Francisco, CA 941331700951233
  5. Leonard Rothman, M.D.San Francisco, CA 941331275807323
  6. Audrey Sue-Matsumoto, MDSan Francisco, CA 941331942569918
  7. Samuel Young, M.D.San Francisco, CA 941331588737894
  8. Ziyad Hannon, M.D.San Francisco, CA 941321942206560

Common questions

What is Jonathan D. Wong, MD's NPI number?

Jonathan D. Wong, MD's National Provider Identifier (NPI) is 1780750588, issued on Nov 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan D. Wong, MD located?

The NPPES record lists a practice address at 1520 Stockton Street, San Francisco, CA, 94133. Phone: (415) 391-9686. Providers update this record themselves, so call before visiting.

How can I verify Jonathan D. Wong, MD's license?

NPPES lists California license number A49948, 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 D. Wong, MD prescribe under Medicare Part D?

In 2024, Jonathan D. Wong, MD had 45 Medicare Part D claims for 25 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.