James Visser, MD
NPI 1548353048 · Nephrology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Visser, MD is a Nephrology Physician provider in Grand Rapids, MI (NPI 1548353048).
Provider details
- NPI number
- 1548353048
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301085023 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,035 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 245 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 193 | $119 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 129 | $335 |
| Hemodialysis Procedure With Physician Evaluation90935 | 85 | $68 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 65 | $113 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 54 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 214 | 76 |
| Amlodipine Besylate | 150 | 54 |
| Empagliflozinbrand: Jardiance | 143 | 49 |
| Losartan Potassium | 121 | 42 |
| Lisinopril | 117 | 55 |
| Furosemide | 103 | 32 |
| Dapagliflozin Propanediolbrand: Farxiga |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,349 across 30 records (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
Registry dates
- Enumerated
- 2006-10-02
- Last updated
- 2020-01-17
- Certified
- 2020-01-17
Frequently asked questions
- What is James Visser's NPI number?
- James Visser's National Provider Identifier (NPI) is 1548353048, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Visser's specialty?
- James Visser is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is James Visser located?
- James Visser's practice location on file with NPPES is 330 E Beltline Ave Ne, Grand Rapids, MI 49506-1267.
- What is James Visser's phone number?
- The practice phone number listed in the NPPES registry for James Visser is (616) 752-6235.
- Does James Visser accept Medicare?
- James Visser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Visser's NPI active?
- Yes — James Visser's NPI (1548353048) is active in the NPPES registry as of the last update on 2020-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.