NPPES file of Aug 9, 2026

Derek Witteman, DO

General Practice Physician · San Antonio, TX

Derek Witteman, DO is a general practice physician with a practice address in San Antonio, Texas, and NPI 1770996779, issued on Jun 6, 2014. Check the license (Texas S6095, as entered in NPPES) on the Texas Medical Board; 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
1770996779
Name
Derek Witteman
Credential
DO
Primary taxonomy
General Practice Physician 208D00000X
License numbers
S6095 TX
20A14540 CA
Self-reported in NPPES; status is on the state search
Practice location
8519 State Highway 151, San Antonio, TX 78245
Phone
(530) 720-1785
Enumerated
Jun 6, 2014
Record last updated
Jul 9, 2026
Medicare enrollment
Enrolled (PECOS I20201016002696); accepts Medicare assignment
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.
Download card Updates feed

Verify Derek Witteman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license S6095
    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 Texas 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Professional Imaging PLLCHumble, TX

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

Derek Witteman among 1,062 general practice physician records in Texas

Derek Witteman, DO is one of 1,062 general practice physician records with a practice address in Texas. 44% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 51% of them.

  • NPI issued2014 · 51% of these records are older, 46% newer
  • In a Medicare fileYes · 44% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2014 · median 2000 among the 222 with a school on file
  • Record last updated2026 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in Texas

There are 1,062 general practice physician records in Texas.

The 8 general practice physician records with the nearest ZIP codes

  1. Ricardo Roca, MDSan Antonio, TX 782451932445525
  2. Jose Hernandez, M.D.San Antonio, TX 782481659469179
  3. Keith Beck, MDSan Antonio, TX 782491740280999
  4. Agurah Humphreys, MDSan Antonio, TX 782401144075763
  5. Henrique Levcovitz, MDSan Antonio, TX 782501316944093
  6. Kristin Missimer, DOSan Antonio, TX 782401548013220
  7. Bailie Moorhead, DOSan Antonio, TX 782401720831753
  8. Maia Ogembo, MDSan Antonio, TX 782401194574848

Common questions

What is Derek Witteman, DO's NPI number?

Derek Witteman, DO's National Provider Identifier (NPI) is 1770996779, issued on Jun 6, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Derek Witteman, DO located?

The NPPES record lists a practice address at 8519 State Highway 151, San Antonio, TX, 78245. Phone: (530) 720-1785. Providers update this record themselves, so call before visiting.

How can I verify Derek Witteman, DO's license?

NPPES lists Texas license number S6095, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.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.