Joshua Owuor, MD
NPI 1578125548 · Internal Medicine Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joshua Owuor, MD is a Internal Medicine Physician provider in Grand Rapids, MI (NPI 1578125548).
Provider details
- NPI number
- 1578125548
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301505163 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Fluticasone Propionate | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 17 |
| Tiotropium Bromidebrand: Spiriva Handihaler | 15 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 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 (1)
- 200 Jefferson Ave SeGrand Rapids, MI 49503-4502Phone: (616) 685-5576
Registry dates
- Enumerated
- 2019-07-01
- Last updated
- 2026-01-27
- Certified
- 2026-01-27
Frequently asked questions
- What is Joshua Owuor's NPI number?
- Joshua Owuor's National Provider Identifier (NPI) is 1578125548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua Owuor's specialty?
- Joshua Owuor is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joshua Owuor located?
- Joshua Owuor's practice location on file with NPPES is 25 Michigan St Ne Ste 2100, Grand Rapids, MI 49503-2526.
- What is Joshua Owuor's phone number?
- The practice phone number listed in the NPPES registry for Joshua Owuor is (616) 391-3777.
- Does Joshua Owuor accept Medicare?
- Joshua Owuor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joshua Owuor's NPI active?
- Yes — Joshua Owuor's NPI (1578125548) is active in the NPPES registry as of the last update on 2026-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.