NPPES file of Aug 9, 2026

Michael Joseph Thesing, MD

Obstetrics Physician · National City, CA

Michael Joseph Thesing, MD is an obstetrics physician with a practice address in National City, California, and NPI 1821084294, issued on Sep 21, 2005. Check the license (California G164057, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821084294
Name
Michael Joseph Thesing
Credential
MD
Primary taxonomy
Obstetrics Physician 207VX0000X
License numbers
G164057 CA
35.058885 OH
Self-reported in NPPES; status is on the state search
Practice location
655 Euclid Ave Ste 409, National City, CA 91950
Phone
(619) 267-8313
Enumerated
Sep 21, 2005
Record last updated
Aug 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(619) 472-2008
Medicaid ID
0908978 OH
Medicare enrollment
Enrolled (PECOS I20260326001510); accepts Medicare assignment
Medical or professional school
University Of Cincinnati College Of Medicine, 1986
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 655 Euclid Ave Ste 409

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

  1. Elmer Harder, M.D.Obstetrics & Gynecology Physician1215014428
  2. Nancy Oropeza, M.D.Obstetrics & Gynecology Physician1154854917
  3. Raghu Shettigar, MDObstetrics & Gynecology Physician1528120540

Verify Michael Joseph Thesing in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G164057
    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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Bills Medicare through one group practice

  1. Kapiolani Medical SpecialistsHonolulu, HI

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

Michael Joseph Thesing among 174 obstetrics physician records in California

Michael Joseph Thesing, MD is one of 174 obstetrics physician records with a practice address in California. 67% 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, 92% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated1986 · median 2002 among the 91 with a school on file
  • Record last updated2020 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in California

There are 174 obstetrics physician records in California.

The 8 obstetrics physician records with the nearest ZIP codes

  1. James Schaefer, MDLa Mesa, CA 919421376645267
  2. Rhett Papa, D.O.El Cajon, CA 920201063642312
  3. Nikolas Capetanakis, D.O.Encinitas, CA 920241184835860
  4. Caitlin Deakin, MBBSEncinitas, CA 920241225484686
  5. Clement Hoffman, M.D.La Jolla, CA 920371306801352
  6. Douglas Woelkers, M.D.La Jolla, CA 920371013965748
  7. Serena Mathews, M.D.Alhambra, CA 918011659803484
  8. Stephen Kalkhoff, MDSan Diego, CA 921021457888042

Common questions

What is Michael Joseph Thesing, MD's NPI number?

Michael Joseph Thesing, MD's National Provider Identifier (NPI) is 1821084294, issued on Sep 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael Joseph Thesing, MD located?

The NPPES record lists a practice address at 655 Euclid Ave Ste 409, National City, CA, 91950. Phone: (619) 267-8313. Providers update this record themselves, so call before visiting.

How can I verify Michael Joseph Thesing, MD's license?

NPPES lists California license number G164057, 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.