Mitchell L. Seitz, M.D.
Internal Medicine Physician · Tracy, CA
Mitchell L. Seitz, M.D. is an internal medicine physician with a practice address in Tracy, California, and NPI 1518943190, issued on Dec 15, 2005. Check the license (California A61234, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mitchell L. Seitz
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A61234 CA
Self-reported in NPPES; status is on the state search - Practice location
- 632 W 11TH St, Tracy, CA 95376
- Phone
- (209) 833-7135
- Enumerated
- Dec 15, 2005
- Record last updated
- Feb 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (209) 833-3827
- Medicare enrollment
- Enrolled (PECOS I20040405000576); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 632 W 11TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Hurst, DOInternal Medicine Physician1205893104
- Devinder Makker, MDFamily Medicine Physician1568421030
- Angela Njoroge, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1790547008
- Alondra RamosSpeech-Language Pathologist1104546373
- Sharon Washington, MDHospitalist Physician1003851015
Verify Mitchell L. Seitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A61234Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,612 Medicare Part D claims for 436 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 223 claims were for opioids.
Most prescribed
- Atorvastatin Calcium558 claims
- Levothyroxine Sodium402 claims
- Amlodipine Besylate309 claims
- Losartan Potassium237 claims
- Alendronate Sodium213 claims
- Lisinopril205 claims
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.
Mitchell L. Seitz among 17,696 internal medicine physician records in California
Mitchell L. Seitz, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1995 · median 2004 among the 11,065 with a school on file
- Record last updated2011 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 internal medicine physician records list a practice address in Tracy
They are 27 of the 1,864 NPPES records with a practice address in Tracy, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Tracy → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gautami Agastya, MDTracy, CA 953761356312516
- Sumbella Baqai, M.D.Tracy, CA 953761801045679
- Jerry Chien, MDTracy, CA 953761154391241
- Puneet Grewal, M.D.Tracy, CA 953761750347639
- Michael Hurst, DOTracy, CA 953761205893104
- Tabish JalalTracy, CA 953761275844375
- Sunil Patel, MDTracy, CA 953761730150848
- Babubhai Patel, M.D.Tracy, CA 953761831144948
Common questions
What is Mitchell L. Seitz, M.D.'s NPI number?
Mitchell L. Seitz, M.D.'s National Provider Identifier (NPI) is 1518943190, issued on Dec 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell L. Seitz, M.D. located?
The NPPES record lists a practice address at 632 W 11TH St, Tracy, CA, 95376. Phone: (209) 833-7135. Providers update this record themselves, so call before visiting.
How can I verify Mitchell L. Seitz, M.D.'s license?
NPPES lists California license number A61234, 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 Mitchell L. Seitz, M.D. prescribe under Medicare Part D?
In 2024, Mitchell L. Seitz, M.D. had 7,612 Medicare Part D claims for 436 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.