NPPES file of Aug 9, 2026

Jonathan David Bortz, M.D.

Endocrinology, Diabetes & Metabolism Physician · Saint Louis, MO

Jonathan David Bortz, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Saint Louis, Missouri, and NPI 1992019921, issued on Aug 2, 2010. Check the license (Missouri R4H64, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992019921
Name
Jonathan David Bortz
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
R4H64 MO
Self-reported in NPPES; status is on the state search
Practice location
8117 Stanford Ave, Saint Louis, MO 63130
Phone
(314) 863-1235
Enumerated
Aug 2, 2010
Record last updated
Aug 2, 2010 (not updated in 16 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Jonathan David Bortz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license R4H64
    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 Missouri license search

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Jonathan David Bortz among 206 endocrinology, diabetes & metabolism physician records in Missouri

Jonathan David Bortz, M.D. is one of 206 endocrinology, diabetes & metabolism physician records with a practice address in Missouri. 88% 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 2010, is newer than 67% of them.

  • NPI issued2010 · 67% of these records are older, 29% newer
  • In a Medicare fileNo · 88% of these records are
  • In the CMS Doctors and Clinicians fileNo · 72% of these records are
  • Record last updated2010 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Missouri

There are 206 endocrinology, diabetes & metabolism physician records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Nicole Ducharme, DOSaint Louis, MO 631291346208394
  2. James Etzkorn, M.D.Saint Louis, MO 631311124066253
  3. Kathleen Lowe, MDSaint Louis, MO 631291639515315
  4. Robert Rilpuou, MDSaint Louis, MO 631311104146372
  5. Puspalatha Sajja, MDSaint Louis, MO 631311225448970
  6. Ruenrudee Suwannasri, MDSaint Louis, MO 631311922091818
  7. Harry Wadsworth, M.D.Saint Louis, MO 631311144213265
  8. Bharathi Raju, MDSaint Louis, MO 631281720078843

Common questions

What is Jonathan David Bortz, M.D.'s NPI number?

Jonathan David Bortz, M.D.'s National Provider Identifier (NPI) is 1992019921, issued on Aug 2, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan David Bortz, M.D. located?

The NPPES record lists a practice address at 8117 Stanford Ave, Saint Louis, MO, 63130. Phone: (314) 863-1235. Providers update this record themselves, so call before visiting.

How can I verify Jonathan David Bortz, M.D.'s license?

NPPES lists Missouri license number R4H64, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. 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.