Peter G Grain, M.D., P.C.
NPI 1235331836 · Neurological Surgery Physician · Clarkston, MI
Peter G Grain, M.D., P.C. is a Neurological Surgery Physician organization in Clarkston, MI (NPI 1235331836).
Provider details
- NPI number
- 1235331836
- Entity type
- Organization
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Peter Grain, Owner(248) 620-9310
- License
- 4301069603 (MI)
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
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
Mailing address
Registry dates
- Enumerated
- 2007-06-05
- Last updated
- 2020-08-22
Frequently asked questions
- What is Peter G Grain, M.D., P.C.'s NPI number?
- Peter G Grain, M.D., P.C.'s National Provider Identifier (NPI) is 1235331836, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Peter G Grain, M.D., P.C.?
- Peter G Grain, M.D., P.C. is classified in the NPPES registry as Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Peter G Grain, M.D., P.C. located?
- Peter G Grain, M.D., P.C.'s practice location on file with NPPES is 7650 Dixie Hwy, Clarkston, MI 48346-2078.
- What is Peter G Grain, M.D., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Peter G Grain, M.D., P.C. is (248) 620-9310.
- Who is the authorized official for Peter G Grain, M.D., P.C.?
- The authorized official listed on Peter G Grain, M.D., P.C.'s NPPES record is Peter Grain, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Peter G Grain, M.D., P.C.'s NPI active?
- Yes — Peter G Grain, M.D., P.C.'s NPI (1235331836) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.