James Passinault, MD
NPI 1225081490 · Internal Medicine Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Passinault, MD is a Internal Medicine Physician provider in Grand Rapids, MI (NPI 1225081490).
Provider details
- NPI number
- 1225081490
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301080248 (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 tenure28% of score
20 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
601 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 | 151 | $93 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 134 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 77 | $75 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 65 | $123 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 40 | $107 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 129 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 688 | 162 |
| Levothyroxine Sodium | 412 | 88 |
| Amlodipine Besylate | 290 | 63 |
| Furosemide | 257 | 43 |
| Lisinopril | 250 | 56 |
| Omeprazole | 239 | 61 |
| Apixabanbrand: Eliquis |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2013-10-15
Frequently asked questions
- What is James Passinault's NPI number?
- James Passinault's National Provider Identifier (NPI) is 1225081490, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Passinault's specialty?
- James Passinault is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Passinault located?
- James Passinault's practice location on file with NPPES is 300 Lafayette Se, Grand Rapids, MI 49503.
- What is James Passinault's phone number?
- The practice phone number listed in the NPPES registry for James Passinault is (616) 752-6919.
- Does James Passinault accept Medicare?
- James Passinault is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Passinault's NPI active?
- Yes — James Passinault's NPI (1225081490) is active in the NPPES registry as of the last update on 2013-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.