Matthew Hollowell, MD, MPH
NPI 1528646270 · Internal Medicine Physician · Grand Rapids, MI
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Hollowell, MD, MPH is a Internal Medicine Physician provider in Grand Rapids, MI (NPI 1528646270).
Provider details
- NPI number
- 1528646270
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 4301514408 (MI)
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 tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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) |
|---|---|
| Atorvastatin Calcium | 12 |
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 275 Michigan St Ne Fl 8Grand Rapids, MI 49503-2531Phone: (616) 391-8810Fax: (616) 391-8897
- 275 Michigan St Ne Fl 9Grand Rapids, MI 49503-2531Phone: (616) 391-3777
Registry dates
- Enumerated
- 2021-04-01
- Last updated
- 2025-05-26
- Certified
- 2025-05-26
Frequently asked questions
- What is Matthew Hollowell's NPI number?
- Matthew Hollowell's National Provider Identifier (NPI) is 1528646270, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Hollowell's specialty?
- Matthew Hollowell is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Hollowell located?
- Matthew Hollowell's practice location on file with NPPES is 2900 Bradford St Ne, Grand Rapids, MI 49525-6427.
- What is Matthew Hollowell's phone number?
- The practice phone number listed in the NPPES registry for Matthew Hollowell is (616) 885-5000.
- Does Matthew Hollowell accept Medicare?
- Matthew Hollowell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Hollowell's NPI active?
- Yes — Matthew Hollowell's NPI (1528646270) is active in the NPPES registry as of the last update on 2025-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.