Peter Grain, M.D.
NPI 1780664573 · Neurological Surgery Physician · Port Huron, MI
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Grain, M.D. is a Neurological Surgery Physician provider in Port Huron, MI (NPI 1780664573).
Provider details
- NPI number
- 1780664573
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- 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
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
- 2010-01-05
Frequently asked questions
- What is Peter Grain's NPI number?
- Peter Grain's National Provider Identifier (NPI) is 1780664573, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Grain's specialty?
- Peter Grain is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Grain located?
- Peter Grain's practice location on file with NPPES is 2603 Electric Ave, Port Huron, MI 48060-6588.
- What is Peter Grain's phone number?
- The practice phone number listed in the NPPES registry for Peter Grain is (810) 987-1056.
- Does Peter Grain accept Medicare?
- Peter Grain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Grain's NPI active?
- Yes — Peter Grain's NPI (1780664573) is active in the NPPES registry as of the last update on 2010-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.