J.d. Thoreson, M.D.
NPI 1366430530 · Internal Medicine Physician · Mason City, IA
J.d. Thoreson, M.D. is a Internal Medicine Physician provider in Mason City, IA (NPI 1366430530).
Provider details
- NPI number
- 1366430530
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 18110 (IA)
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
20 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
- 2005-10-11
- Last updated
- 2014-12-30
Frequently asked questions
- What is J.d. Thoreson's NPI number?
- J.d. Thoreson's National Provider Identifier (NPI) is 1366430530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is J.d. Thoreson's specialty?
- J.d. Thoreson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is J.d. Thoreson located?
- J.d. Thoreson's practice location on file with NPPES is 250 S Crescent Dr, Mason City, IA 50401-2926.
- What is J.d. Thoreson's phone number?
- The practice phone number listed in the NPPES registry for J.d. Thoreson is (641) 494-5350.
- Is J.d. Thoreson's NPI active?
- Yes — J.d. Thoreson's NPI (1366430530) is active in the NPPES registry as of the last update on 2014-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.