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Gregg Marr, D.D.S.
NPI 1245391481 · General Practice Dentistry · Saint Joseph, MI
Gregg Marr, D.D.S. is a General Practice Dentistry provider in Saint Joseph, MI (NPI 1245391481).
Provider details
- NPI number
- 1245391481
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- 10452 (MI)
Specialties & taxonomies
Dental Providers
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
455 Upton Dr
Saint Joseph, MI 49085-1058
Phone: (269) 983-7881
Fax: (269) 983-7871
Street-level locationGet directions
Mailing address
50401 Bond Rd
Decatur, MI 49045-9449
Registry dates
- Enumerated
- 2006-12-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregg Marr's NPI number?
- Gregg Marr's National Provider Identifier (NPI) is 1245391481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregg Marr's specialty?
- Gregg Marr is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Gregg Marr located?
- Gregg Marr's practice location on file with NPPES is 455 Upton Dr, Saint Joseph, MI 49085-1058.
- What is Gregg Marr's phone number?
- The practice phone number listed in the NPPES registry for Gregg Marr is (269) 983-7881.
- Is Gregg Marr's NPI active?
- Yes — Gregg Marr's NPI (1245391481) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.