Dr Robert D Grimshaw DO PLLC
NPI 1124073523 · Family Medicine Physician · Vassar, MI
Dr Robert D Grimshaw DO PLLC is a Family Medicine Physician organization in Vassar, MI (NPI 1124073523).
Provider details
- NPI number
- 1124073523
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Robert Grimshaw, Owner(989) 823-5030
- License
- 5101013846 (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
- 2006-05-23
- Last updated
- 2008-02-01
Frequently asked questions
- What is Dr Robert D Grimshaw DO PLLC's NPI number?
- Dr Robert D Grimshaw DO PLLC's National Provider Identifier (NPI) is 1124073523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr Robert D Grimshaw DO PLLC?
- Dr Robert D Grimshaw DO PLLC is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dr Robert D Grimshaw DO PLLC located?
- Dr Robert D Grimshaw DO PLLC's practice location on file with NPPES is 201 W Huron Ave, Vassar, MI 48768-1237.
- What is Dr Robert D Grimshaw DO PLLC's phone number?
- The practice phone number listed in the NPPES registry for Dr Robert D Grimshaw DO PLLC is (989) 823-5030.
- Who is the authorized official for Dr Robert D Grimshaw DO PLLC?
- The authorized official listed on Dr Robert D Grimshaw DO PLLC's NPPES record is Robert Grimshaw, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr Robert D Grimshaw DO PLLC's NPI active?
- Yes — Dr Robert D Grimshaw DO PLLC's NPI (1124073523) is active in the NPPES registry as of the last update on 2008-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.