NPPES file of Aug 9, 2026

Mark Oltermann, MD

Critical Care Medicine (Internal Medicine) Physician · Fort Worth, TX

Mark Oltermann, MD is a critical care medicine (internal medicine) physician with a practice address in Fort Worth, Texas, and NPI 1154353357, issued on Jul 7, 2006. Check the license (Texas G8323, as entered in NPPES) on the Texas Medical Board; 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
1154353357
Name
Mark Oltermann
Credential
MD
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License numbers
G8323 TX
MED-PHYS-LIC-76336 MT
16376 NV
Self-reported in NPPES; status is on the state search
Practice location
1500 S Main St, Fort Worth, TX 76104
Phone
(817) 921-3431
Enumerated
Jul 7, 2006
Record last updated
Jun 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid IDs
150942401 TX
200003780A OK
59339837 NM
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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8 nearest critical care medicine (internal medicine) physician records → All 413 in Texas → Look up another NPI →

Also registered at 1500 S Main St

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

  1. Montserrat Abadie Sole, M.D.Family Medicine Physician1245437078
  2. Arlene Abraham, DOStudent in an Organized Health Care Education/Training Program1316735277
  3. Katherine Abtahi, DOObstetrics & Gynecology Physician1831457621
  4. Amir Abuchaei, DOPsychiatry Physician1851929186
  5. William Adams, MDStudent in an Organized Health Care Education/Training Program1114612959
  6. Rufus Aderounmu, MDStudent in an Organized Health Care Education/Training Program1780434894

Verify Mark Oltermann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G8323    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

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Mark Oltermann among 413 critical care medicine (internal medicine) physician records in Texas

Mark Oltermann, MD is one of 413 critical care medicine (internal medicine) physician records with a practice address in Texas. 90% 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 70% newer
  • In a Medicare fileNo · 90% of these records are
  • In the CMS Doctors and Clinicians fileNo · 84% of these records are
  • Record last updated2021 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Texas

There are 413 critical care medicine (internal medicine) physician records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 413 in Texas → Every provider in Fort Worth → Critical Care Medicine (Internal Medicine) Physician nationwide →

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Daud Ashai, M.DFort Worth, TX 761041700813383
  2. Razaq Badamosi, MDFort Worth, TX 761041982813432
  3. Steven Davis, MD MSFort Worth, TX 761041437277381
  4. Daniel Dube, MDFort Worth, TX 761041629214028
  5. Oyeyemi Fabuyi, M.D.Fort Worth, TX 761041407826498
  6. Vikas Goyal, MDFort Worth, TX 761041275853327
  7. Nidhi Jindal, M.D.Fort Worth, TX 761041831154756
  8. Cristhiaan Ochoa Arenas, M.D.,PH.D.Fort Worth, TX 761041891051215

Common questions

What is Mark Oltermann, MD's NPI number?

Mark Oltermann, MD's National Provider Identifier (NPI) is 1154353357, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Oltermann, MD located?

The NPPES record lists a practice address at 1500 S Main St, Fort Worth, TX, 76104. Phone: (817) 921-3431. Providers update this record themselves, so call before visiting.

How can I verify Mark Oltermann, MD's license?

NPPES lists Texas license number G8323, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.