Morgan Grinwis, PA
NPI 1588212500 · Physician Assistant · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Morgan Grinwis, PA is a Physician Assistant provider in Grand Rapids, MI (NPI 1588212500).
Provider details
- NPI number
- 1588212500
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 5601009786 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 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
259 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 245 | $105 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 14 | $140 |
Typical Medicare-allowed amounts for these services range $105–$140 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 246 | 112 |
| Semaglutidebrand: Ozempic | 161 | 55 |
| Metformin Hcl | 150 | 75 |
| Tirzepatidebrand: Mounjaro | 121 | 37 |
| Empagliflozinbrand: Jardiance | 107 | 45 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 104 | 40 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-09-03
- Last updated
- 2025-08-01
- Certified
- 2025-08-01
Frequently asked questions
- What is Morgan Grinwis's NPI number?
- Morgan Grinwis's National Provider Identifier (NPI) is 1588212500, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Morgan Grinwis's specialty?
- Morgan Grinwis is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Morgan Grinwis located?
- Morgan Grinwis's practice location on file with NPPES is 25 Michigan St Ne Ste 5200, Grand Rapids, MI 49503-2572.
- What is Morgan Grinwis's phone number?
- The practice phone number listed in the NPPES registry for Morgan Grinwis is (616) 391-3681.
- Does Morgan Grinwis accept Medicare?
- Morgan Grinwis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Morgan Grinwis's NPI active?
- Yes — Morgan Grinwis's NPI (1588212500) is active in the NPPES registry as of the last update on 2025-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.