Erin Grimsby, M.D.
NPI 1871810630 · Physical Medicine & Rehabilitation Physician · Duluth, MN
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Grimsby, M.D. is a Physical Medicine & Rehabilitation Physician provider in Duluth, MN (NPI 1871810630).
Provider details
- NPI number
- 1871810630
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 56782 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
422 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 172 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 64 | $112 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $92 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 32 | $77 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 29 | $122 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Baclofen | 100 | 18 |
| Gabapentin | 98 | 36 |
| Atorvastatin Calcium | 34 | — |
| Tizanidine Hcl | 28 | 12 |
| Pregabalin | 19 | — |
| Trazodone Hcl | 18 | — |
| Tamsulosin Hcl | 16 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-05-03
- Last updated
- 2016-02-17
Frequently asked questions
- What is Erin Grimsby's NPI number?
- Erin Grimsby's National Provider Identifier (NPI) is 1871810630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Grimsby's specialty?
- Erin Grimsby is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Erin Grimsby located?
- Erin Grimsby's practice location on file with NPPES is 400 East Third Street, Duluth, MN 55805-1951.
- What is Erin Grimsby's phone number?
- The practice phone number listed in the NPPES registry for Erin Grimsby is (218) 786-8364.
- Does Erin Grimsby accept Medicare?
- Erin Grimsby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Grimsby's NPI active?
- Yes — Erin Grimsby's NPI (1871810630) is active in the NPPES registry as of the last update on 2016-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.