Joseph Witztum, M.D.
Endocrinology, Diabetes & Metabolism Physician · San Diego, CA
Joseph Witztum, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in San Diego, California, and NPI 1699791491, issued on Jul 14, 2006. Check the license on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joseph Witztum
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (800) 926-8273
- Enumerated
- Jul 14, 2006
- Entity
- Type 1 · individual
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
- Joseph Abdelmalek, M.DHospitalist Physician1740485531
- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Joseph Witztum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 890 endocrinology, diabetes & metabolism physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other endocrinology, diabetes & metabolism physician records in California
- Anita Abraham, M.D.Stockton, CA1558380337
- Sallie Adams, M.D.Roseville, CA1255342085
- Ananta AddalaPalo Alto, CA1740669563
- Helen Adelberg, M.D.Encino, CA1093935447
- David Aftergood, MDBeverly Hills, CA1639259328
- Bahar Aghighi, MDSanta Cruz, CA1770562134
- Tyler Aguinaldo, MDBurlingame, CA1306811906
- Susan Ahern, D.O.Ventura, CA1508156597
- Scott Ahl, D.O.Huntington Beach, CA1558674523
- Sheila Ahmadi, MDLos Angeles, CA1194800094
Common questions
What is Joseph Witztum, M.D.'s NPI number?
Joseph Witztum, M.D.'s National Provider Identifier (NPI) is 1699791491, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Witztum, M.D. located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Joseph Witztum, M.D.'s license?
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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.