John Gribar, M.D., M HSC.
NPI 1770600462 · Interventional Cardiology Physician · Holland, MI
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Gribar, M.D., M HSC. is a Interventional Cardiology Physician provider in Holland, MI (NPI 1770600462).
Provider details
- NPI number
- 1770600462
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M HSC.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301083655 (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 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
602 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 100 | $125 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 97 | $17 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 73 | $68 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 62 | $14 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 41 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 443 | 168 |
| Atorvastatin Calcium | 359 | 131 |
| Carvedilol | 283 | 102 |
| Empagliflozinbrand: Jardiance | 267 | 60 |
| Metoprolol Succinate | 222 | 89 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 220 | 93 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$280 across 11 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
- 2007-03-26
- Last updated
- 2021-03-04
- Certified
- 2021-03-04
Frequently asked questions
- What is John Gribar's NPI number?
- John Gribar's National Provider Identifier (NPI) is 1770600462, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gribar's specialty?
- John Gribar is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Gribar located?
- John Gribar's practice location on file with NPPES is 602 Michigan Ave, Holland, MI 49423-4918.
- What is John Gribar's phone number?
- The practice phone number listed in the NPPES registry for John Gribar is (616) 392-3824.
- Does John Gribar accept Medicare?
- John Gribar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Gribar's NPI active?
- Yes — John Gribar's NPI (1770600462) is active in the NPPES registry as of the last update on 2021-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.