John Reinertson, M.D.
NPI 1558342535 · Family Medicine Physician · Marshalltown, IA
John Reinertson, M.D. is a Family Medicine Physician provider in Marshalltown, IA (NPI 1558342535).
Provider details
- NPI number
- 1558342535
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 21627 (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
- 2005-11-08
- Last updated
- 2008-05-20
Frequently asked questions
- What is John Reinertson's NPI number?
- John Reinertson's National Provider Identifier (NPI) is 1558342535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Reinertson's specialty?
- John Reinertson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Reinertson located?
- John Reinertson's practice location on file with NPPES is 3 S 4th Ave, Marshalltown, IA 50158-2924.
- What is John Reinertson's phone number?
- The practice phone number listed in the NPPES registry for John Reinertson is (641) 754-5040.
- Is John Reinertson's NPI active?
- Yes — John Reinertson's NPI (1558342535) is active in the NPPES registry as of the last update on 2008-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.