Gregory Olszewski, MD
NPI 1952741050 · Family Medicine Physician · Minneapolis, MN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Olszewski, MD is a Family Medicine Physician provider in Minneapolis, MN (NPI 1952741050).
Provider details
- NPI number
- 1952741050
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 13813 (ND)
Specialties & taxonomies
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
3 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 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 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 (2)
- 1120 E 34th StHibbing, MN 55746-2909Phone: (218) 362-7100
- 8373 Unity DrVirginia, MN 55792-4005Phone: (218) 748-7480
Registry dates
- Enumerated
- 2013-07-03
- Last updated
- 2018-11-02
Frequently asked questions
- What is Gregory Olszewski's NPI number?
- Gregory Olszewski's National Provider Identifier (NPI) is 1952741050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Olszewski's specialty?
- Gregory Olszewski is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Olszewski located?
- Gregory Olszewski's practice location on file with NPPES is 19 S 1st St Apt B2603, Minneapolis, MN 55401-1845.
- What is Gregory Olszewski's phone number?
- The practice phone number listed in the NPPES registry for Gregory Olszewski is (651) 269-5941.
- Does Gregory Olszewski accept Medicare?
- Gregory Olszewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Olszewski's NPI active?
- Yes — Gregory Olszewski's NPI (1952741050) is active in the NPPES registry as of the last update on 2018-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.