Warren Ketterling, M.D.
NPI 1841270550 · Internal Medicine Physician · Rochester, MN
Warren Ketterling, M.D. is a Internal Medicine Physician provider in Rochester, MN (NPI 1841270550).
Provider details
- NPI number
- 1841270550
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 19774 (MN)
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
- 2006-01-19
- Last updated
- 2008-11-07
Frequently asked questions
- What is Warren Ketterling's NPI number?
- Warren Ketterling's National Provider Identifier (NPI) is 1841270550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Ketterling's specialty?
- Warren Ketterling is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Ketterling located?
- Warren Ketterling's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.
- What is Warren Ketterling's phone number?
- The practice phone number listed in the NPPES registry for Warren Ketterling is (507) 284-2511.
- Is Warren Ketterling's NPI active?
- Yes — Warren Ketterling's NPI (1841270550) is active in the NPPES registry as of the last update on 2008-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.