Jon Thomas Umlauf, MD
Nuclear Medicine Physician · San Diego, CA
Jon Thomas Umlauf, MD is a nuclear medicine physician with a practice address in San Diego, California, and NPI 1356332373, issued on Oct 31, 2005. Check the license (California G89012, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jon Thomas Umlauf
- Credential
- MD
- Primary taxonomy
- Nuclear Medicine Physician 207U00000X
- License numbers
- G89012 CA
25MA56685 NJ
MD00046429 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4647 Zion Ave, San Diego, CA 92120
- Phone
- (206) 616-5781
- Enumerated
- Oct 31, 2005
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120321000724); accepts Medicare assignment
- Medical or professional school
- Pennsylvania State University College Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest nuclear medicine physician records → All 150 in California → Look up another NPI →
Also registered at 4647 Zion Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Linda Adams, PAPhysician Assistant1427174689
- Mette-Margrethe Adkisson, M.D.Emergency Medicine Physician1528288081
Verify Jon Thomas Umlauf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G89012Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $19.41
1 payment: food and beverage; the largest payer was Cardinal Health 414 LLC. The 172 providers of this specialty with any payment received $4,384.46 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Southern California Permanente Medical GroupSan Marcos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jon Thomas Umlauf among 150 nuclear medicine physician records in California
Jon Thomas Umlauf, MD is one of 150 nuclear medicine physician records with a practice address in California. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated1989 · median 1999 among the 72 with a school on file
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207U00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nuclear Medicine Physician providers in California
There are 150 nuclear medicine physician records in California.
All 150 in California → Every provider in San Diego → Nuclear Medicine Physician nationwide →
The 8 nuclear medicine physician records with the nearest ZIP codes
- Guy Ravad, MDSan Diego, CA 921201447319017
- Michael Starsiak, MDSan Diego, CA 921341740216738
- Samuel Halpern, M.D.San Diego, CA 921031629000880
- Carl Hoh, M.D.San Diego, CA 921031962427682
- Frank PapatheofanisSan Diego, CA 921031275702797
- Suzan ParhizgarSan Diego, CA 921031144607383
- Ryan Pham, M.D.San Diego, CA 921031578666806
- Amir Rad, M.DSan Diego, CA 921031710262472
Common questions
What is Jon Thomas Umlauf, MD's NPI number?
Jon Thomas Umlauf, MD's National Provider Identifier (NPI) is 1356332373, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jon Thomas Umlauf, MD located?
The NPPES record lists a practice address at 4647 Zion Ave, San Diego, CA, 92120. Phone: (206) 616-5781. Providers update this record themselves, so call before visiting.
How can I verify Jon Thomas Umlauf, MD's license?
NPPES lists California license number G89012, 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. 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.