Frederick Ganzi, M.D
NPI 1639105646 · Anesthesiology Physician · Holland, MI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Ganzi, M.D is a Anesthesiology Physician provider in Holland, MI (NPI 1639105646).
Provider details
- NPI number
- 1639105646
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 4301071833 (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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
39 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) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 27 | $124 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 12 | $138 |
Typical Medicare-allowed amounts for these services range $124–$138 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$394 across 19 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
Additional practice locations (2)
- 1840 Wealthy St SeGrand Rapids, MI 49506-2921Phone: (616) 364-4200
- 3333 Evergreen Dr NeGrand Rapids, MI 49525-9493Phone: (616) 364-4200Fax: (616) 364-7347
Registry dates
- Enumerated
- 2006-06-23
- Last updated
- 2023-08-18
- Certified
- 2023-08-07
Frequently asked questions
- What is Frederick Ganzi's NPI number?
- Frederick Ganzi's National Provider Identifier (NPI) is 1639105646, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Ganzi's specialty?
- Frederick Ganzi is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Ganzi located?
- Frederick Ganzi's practice location on file with NPPES is 602 Michigan Ave, Holland, MI 49423-4918.
- What is Frederick Ganzi's phone number?
- The practice phone number listed in the NPPES registry for Frederick Ganzi is (616) 392-5141.
- Does Frederick Ganzi accept Medicare?
- Frederick Ganzi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Ganzi's NPI active?
- Yes — Frederick Ganzi's NPI (1639105646) is active in the NPPES registry as of the last update on 2023-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.