Jonathon Mark Weisz, MD
Pediatrics Physician · Covina, CA
Jonathon Mark Weisz, MD is a pediatrics physician with a practice address in Covina, California, and NPI 1841259298, issued on Mar 22, 2006. Check the license (California G74937, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jonathon Mark Weisz
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- G74937 CA
Self-reported in NPPES; status is on the state search - Practice location
- 420 W Rowland St, Covina, CA 91723
- Phone
- (626) 331-6411
- Enumerated
- Mar 22, 2006
- Record last updated
- Apr 13, 2026
- Fax
- (626) 251-1560
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 420 W Rowland St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Absood, M.D.Internal Medicine Physician1497735906
- Nancy Aceves, RN, FNPFamily Nurse Practitioner1235171703
- Joseph Alonzo, M.D.Internal Medicine Physician1225077050
- Sarah Anh, M.D.Emergency Medicine Physician1104037159
- Travis Boyer, FNPFamily Nurse Practitioner1265901870
- Annamari Cabrera, MDPediatrics Physician1881653434
Verify Jonathon Mark Weisz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74937Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jonathon Mark Weisz among 9,272 pediatrics physician records in California
Jonathon Mark Weisz, MD is one of 9,272 pediatrics physician records with a practice address in California. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileNo · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2026 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,272 in California → Every provider in Covina → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Annamari Cabrera, MDCovina, CA 917231881653434
- Priti Desai, MDCovina, CA 917231932235587
- Rosa Gidowski, MDCovina, CA 917231689742702
- Hsin Lin, M.D.Covina, CA 917231194752279
- Scott Scheibe, MDCovina, CA 917231770542672
- Anam Siddiqui, MDCovina, CA 917231568999100
- Andrea TaiCovina, CA 917231417453861
- Viet Mai, MDCovina, CA 917221528042090
Common questions
What is Jonathon Mark Weisz, MD's NPI number?
Jonathon Mark Weisz, MD's National Provider Identifier (NPI) is 1841259298, issued on Mar 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jonathon Mark Weisz, MD located?
The NPPES record lists a practice address at 420 W Rowland St, Covina, CA, 91723. Phone: (626) 331-6411. Providers update this record themselves, so call before visiting.
How can I verify Jonathon Mark Weisz, MD's license?
NPPES lists California license number G74937, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.