IndividualActive
Mark Collison, M.D.
NPI 1336256130 · Internal Medicine Physician · Carroll, IA
Mark Collison, M.D. is a Internal Medicine Physician provider in Carroll, IA (NPI 1336256130).
Provider details
- NPI number
- 1336256130
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 22966 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
405 S Clark St
Suite 230
Carroll, IA 51401-3065
Phone: (712) 794-2222
Fax: (712) 792-2124
Street-level locationGet directions
Mailing address
105 E 13th St
Carroll, IA 51401-2013
Registry dates
- Enumerated
- 2006-08-25
- Last updated
- 2013-07-02
Frequently asked questions
- What is Mark Collison's NPI number?
- Mark Collison's National Provider Identifier (NPI) is 1336256130, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Collison's specialty?
- Mark Collison is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Collison located?
- Mark Collison's practice location on file with NPPES is 405 S Clark St, Carroll, IA 51401-3065.
- What is Mark Collison's phone number?
- The practice phone number listed in the NPPES registry for Mark Collison is (712) 794-2222.
- Is Mark Collison's NPI active?
- Yes — Mark Collison's NPI (1336256130) is active in the NPPES registry as of the last update on 2013-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.