Justin Groenewold, M.D.
NPI 1649681222 · Emergency Medicine Physician · Saint Paul, MN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Groenewold, M.D. is a Emergency Medicine Physician provider in Saint Paul, MN (NPI 1649681222).
Provider details
- NPI number
- 1649681222
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 67786 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
6 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 16 | 16 |
| Prednisone | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (5)
- 420 Delaware Street SeMmc 284Minneapolis, MN 55455Phone: (612) 626-5031
- 927 Churchill St WStillwater, MN 55082-6605Phone: (651) 430-4529
- 265 Griffin St EAmery, WI 54001-1439Phone: (715) 268-8000
- 405 Stageline RdHudson, WI 54016-7848Phone: (715) 531-6000
- 535 Hospital RdNew Richmond, WI 54017-1449Phone: (715) 243-2600
Registry dates
- Enumerated
- 2014-05-16
- Last updated
- 2025-07-18
- Certified
- 2025-07-18
Frequently asked questions
- What is Justin Groenewold's NPI number?
- Justin Groenewold's National Provider Identifier (NPI) is 1649681222, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Groenewold's specialty?
- Justin Groenewold is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Groenewold located?
- Justin Groenewold's practice location on file with NPPES is 640 Jackson St, Saint Paul, MN 55101-2502.
- What is Justin Groenewold's phone number?
- The practice phone number listed in the NPPES registry for Justin Groenewold is (651) 254-3456.
- Does Justin Groenewold accept Medicare?
- Justin Groenewold is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Groenewold's NPI active?
- Yes — Justin Groenewold's NPI (1649681222) is active in the NPPES registry as of the last update on 2025-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.