Registry data as of Aug 27, 2026

Erin Grimsby, M.D.

Physical Medicine & Rehabilitation Physician · Duluth, MN

Erin Grimsby, M.D. is a physical medicine & rehabilitation physician with a practice address in Duluth, Minnesota, and NPI 1871810630, issued on May 3, 2010. Check the license on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1871810630
Name
Erin Grimsby
Credential
M.D.
Primary taxonomy
Physical Medicine & Rehabilitation Physician 208100000X
Practice location
400 East Third Street, Duluth, MN 55805
Phone
(218) 786-8364
Enumerated
May 3, 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 400 East Third Street

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maria Beaver, MDAnatomic Pathology Physician1215256409
  2. Barbara Boehm, PSY.D, LPPsychologist1902052103
  3. Timothy Borden, D.O.Emergency Medicine Physician1043416209
  4. Sarah Daggett, CPNPPediatric Nurse Practitioner1336304971
  5. Michele Davis, APRN, CNPAdult Health Nurse Practitioner1104250257
  6. Wilson GineteInterventional Cardiology Physician1922055607

Verify Erin Grimsby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical PracticeCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Minnesota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

41% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024

468 Medicare Part D claims for 111 beneficiaries, against an average of 793 among the 6,932 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Erin Grimsby468
  2. Specialty average793

Most prescribed

  1. Baclofen100 claims
  2. Gabapentin98 claims
  3. Atorvastatin Calcium34 claims
  4. Tizanidine Hcl28 claims
  5. Pregabalin19 claims
  6. Trazodone Hcl18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

2 hospital and facility affiliations

  1. Polinsky Medical Rehabilitation CenterDuluth, MN
  2. The Duluth Clinic LtdDuluth, MN

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Physical Medicine & Rehabilitation Physician providers in Minnesota

There are 326 physical medicine & rehabilitation physician records in Minnesota.

All 326 in Minnesota → Every provider in Duluth →

Other physical medicine & rehabilitation physician records in Minnesota

  1. Jeremy Adam, M.D.Minneapolis, MN1619139789
  2. Mark Agre, MDBloomington, MN1902919723
  3. William Ahlenius, M.D.Maplewood, MN1811940117
  4. Cara Ahlgrim, DPT, PTSaint Paul, MN1609413335
  5. Andrew Alexander, MDRochester, MN1548825524
  6. Mohamed Alfath, DOSaint Paul, MN1528593951
  7. Jessica Alm Martin, DOMankato, MN1982996393
  8. Miriam Alpert, DORochester, MN1396378014
  9. Paul Amundson, MDSaint Louis Park, MN1275507386
  10. Josie Anderson, DPTPine City, MN1023508876

Common questions

What is Erin Grimsby, M.D.'s NPI number?

Erin Grimsby, M.D.'s National Provider Identifier (NPI) is 1871810630, issued on May 3, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Erin Grimsby, M.D. located?

The NPPES record lists a practice address at 400 East Third Street, Duluth, MN, 55805. Phone: (218) 786-8364. Providers update this record themselves, so call before visiting.

How can I verify Erin Grimsby, M.D.'s license?

Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Erin Grimsby, M.D. prescribe under Medicare Part D?

In 2024, Erin Grimsby, M.D. had 468 Medicare Part D claims for 111 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 793. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.