Mark Oltermann, MD
NPI 1154353357 · Critical Care Medicine (Internal Medicine) Physician · Fort Worth, TX
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Oltermann, MD is a Critical Care Medicine (Internal Medicine) Physician provider in Fort Worth, TX (NPI 1154353357).
Provider details
- NPI number
- 1154353357
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G8323 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1155 Mill StReno, NV 89502-1576Phone: (775) 982-7878Fax: (775) 982-4196
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2021-06-15
- Certified
- 2021-06-15
Frequently asked questions
- What is Mark Oltermann's NPI number?
- Mark Oltermann's National Provider Identifier (NPI) is 1154353357, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Oltermann's specialty?
- Mark Oltermann is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Oltermann located?
- Mark Oltermann's practice location on file with NPPES is 1500 S Main St, Fort Worth, TX 76104.
- What is Mark Oltermann's phone number?
- The practice phone number listed in the NPPES registry for Mark Oltermann is (817) 921-3431.
- Does Mark Oltermann accept Medicare?
- Mark Oltermann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Oltermann's NPI active?
- Yes — Mark Oltermann's NPI (1154353357) is active in the NPPES registry as of the last update on 2021-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.