IndividualActive
Mark Grimm, M.D.
NPI 1942271689 · Otolaryngology Physician · Fenton, MO
Mark Grimm, M.D. is a Otolaryngology Physician provider in Fenton, MO (NPI 1942271689).
Provider details
- NPI number
- 1942271689
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2001018662 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
1011 Bowles Ave
Suite 405
Fenton, MO 63026-2395
Phone: (314) 965-9184
Street-level locationGet directions
Mailing address
Po Box 790379
Saint Louis, MO 63179-0379
Registry dates
- Enumerated
- 2006-01-31
- Last updated
- 2011-05-19
Frequently asked questions
- What is Mark Grimm's NPI number?
- Mark Grimm's National Provider Identifier (NPI) is 1942271689, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Grimm's specialty?
- Mark Grimm is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Grimm located?
- Mark Grimm's practice location on file with NPPES is 1011 Bowles Ave, Fenton, MO 63026-2395.
- What is Mark Grimm's phone number?
- The practice phone number listed in the NPPES registry for Mark Grimm is (314) 965-9184.
- Is Mark Grimm's NPI active?
- Yes — Mark Grimm's NPI (1942271689) is active in the NPPES registry as of the last update on 2011-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.