Gregory Haugen, MD
NPI 1255359808 · Medical Toxicology (Emergency Medicine) Physician · Fargo, ND
Gregory Haugen, MD is a Medical Toxicology (Emergency Medicine) Physician provider in Fargo, ND (NPI 1255359808).
Provider details
- NPI number
- 1255359808
- Entity type
- Individual
- Primary specialty
- Medical Toxicology (Emergency Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9390 (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
19 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
- 2006-07-18
- Last updated
- 2008-09-16
Frequently asked questions
- What is Gregory Haugen's NPI number?
- Gregory Haugen's National Provider Identifier (NPI) is 1255359808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Haugen's specialty?
- Gregory Haugen is listed in the NPPES registry with a primary specialty of Medical Toxicology (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Haugen located?
- Gregory Haugen's practice location on file with NPPES is 737 Broadway, Fargo, ND 58122-0001.
- What is Gregory Haugen's phone number?
- The practice phone number listed in the NPPES registry for Gregory Haugen is (701) 234-5121.
- Is Gregory Haugen's NPI active?
- Yes — Gregory Haugen's NPI (1255359808) is active in the NPPES registry as of the last update on 2008-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.