Derek Oldenburger, M.D.
NPI 1275867822 · Internal Medicine Physician · Bismarck, ND
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Oldenburger, M.D. is a Internal Medicine Physician provider in Bismarck, ND (NPI 1275867822).
Provider details
- NPI number
- 1275867822
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 3511 (ND)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2009-09-30
- Last updated
- 2010-01-19
Frequently asked questions
- What is Derek Oldenburger's NPI number?
- Derek Oldenburger's National Provider Identifier (NPI) is 1275867822, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Oldenburger's specialty?
- Derek Oldenburger is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Oldenburger located?
- Derek Oldenburger's practice location on file with NPPES is 1208 N Parkview Dr, Bismarck, ND 58501-1288.
- What is Derek Oldenburger's phone number?
- The practice phone number listed in the NPPES registry for Derek Oldenburger is (701) 223-6519.
- Does Derek Oldenburger accept Medicare?
- Derek Oldenburger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Oldenburger's NPI active?
- Yes — Derek Oldenburger's NPI (1275867822) is active in the NPPES registry as of the last update on 2010-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.