Internal Medicine Associates Inc
NPI 1144313743 · Internal Medicine Physician · Fargo, ND
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Internal Medicine Associates Inc is a Internal Medicine Physician organization in Fargo, ND (NPI 1144313743).
Provider details
- NPI number
- 1144313743
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael Lillestol, President(701) 280-2033
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
- 2006-10-02
- Last updated
- 2025-04-18
- Certified
- 2025-04-18
Frequently asked questions
- What is Internal Medicine Associates Inc's NPI number?
- Internal Medicine Associates Inc's National Provider Identifier (NPI) is 1144313743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Internal Medicine Associates Inc?
- Internal Medicine Associates Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Internal Medicine Associates Inc located?
- Internal Medicine Associates Inc's practice location on file with NPPES is 4450 31st Ave S Ste 102, Fargo, ND 58104-4557.
- What is Internal Medicine Associates Inc's phone number?
- The practice phone number listed in the NPPES registry for Internal Medicine Associates Inc is (701) 280-2033.
- Does Internal Medicine Associates Inc accept Medicare?
- Internal Medicine Associates Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Internal Medicine Associates Inc?
- The authorized official listed on Internal Medicine Associates Inc's NPPES record is Michael Lillestol, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Internal Medicine Associates Inc's NPI active?
- Yes — Internal Medicine Associates Inc's NPI (1144313743) is active in the NPPES registry as of the last update on 2025-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.