OrganizationActive
Lonson L Barr, D.O., P.C.
NPI 1366636755 · Surgery Physician · Grand Rapids, MI
Lonson L Barr, D.O., P.C. is a Surgery Physician organization in Grand Rapids, MI (NPI 1366636755).
Provider details
- NPI number
- 1366636755
- Entity type
- Organization
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Lonson Barr, President & Physician(616) 246-6262
- License
- 5101005711 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
1945 Boston St Se
Ste 303
Grand Rapids, MI 49506-4100
Phone: (616) 246-6262
Fax: (616) 246-8737
Street-level locationGet directions
Mailing address
1945 Boston St Se
Grand Rapids, MI 49506-4100
Registry dates
- Enumerated
- 2007-08-29
- Last updated
- 2007-08-29
Frequently asked questions
- What is Lonson L Barr, D.O., P.C.'s NPI number?
- Lonson L Barr, D.O., P.C.'s National Provider Identifier (NPI) is 1366636755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Lonson L Barr, D.O., P.C.?
- Lonson L Barr, D.O., P.C. is classified in the NPPES registry as Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Lonson L Barr, D.O., P.C. located?
- Lonson L Barr, D.O., P.C.'s practice location on file with NPPES is 1945 Boston St Se, Grand Rapids, MI 49506-4100.
- What is Lonson L Barr, D.O., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Lonson L Barr, D.O., P.C. is (616) 246-6262.
- Who is the authorized official for Lonson L Barr, D.O., P.C.?
- The authorized official listed on Lonson L Barr, D.O., P.C.'s NPPES record is Lonson Barr, President & Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Lonson L Barr, D.O., P.C.'s NPI active?
- Yes — Lonson L Barr, D.O., P.C.'s NPI (1366636755) is active in the NPPES registry as of the last update on 2007-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.