Zachary Ginsburg, D.O.
NPI 1649704495 · Hospitalist Physician · Muskegon, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Ginsburg, D.O. is a Hospitalist Physician provider in Muskegon, MI (NPI 1649704495).
Provider details
- NPI number
- 1649704495
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- G521974636123 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
335 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 | 162 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 71 | $165 |
| Critical Care, First 30-74 Minutes99291 | 66 | $202 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 22 | $105 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $125 |
Typical Medicare-allowed amounts for these services range $75–$202 (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.
$171 across 5 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 (1)
- 1150 E Sherman Blvd Ste 1100Muskegon, MI 49444-4607Phone: (231) 672-7800Fax: (231) 672-6202
Registry dates
- Enumerated
- 2017-04-19
- Last updated
- 2022-04-23
- Certified
- 2022-04-23
Frequently asked questions
- What is Zachary Ginsburg's NPI number?
- Zachary Ginsburg's National Provider Identifier (NPI) is 1649704495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Ginsburg's specialty?
- Zachary Ginsburg is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Ginsburg located?
- Zachary Ginsburg's practice location on file with NPPES is 1500 E Sherman Blvd, Muskegon, MI 49444-1849.
- What is Zachary Ginsburg's phone number?
- The practice phone number listed in the NPPES registry for Zachary Ginsburg is (231) 672-3883.
- Does Zachary Ginsburg accept Medicare?
- Zachary Ginsburg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Ginsburg's NPI active?
- Yes — Zachary Ginsburg's NPI (1649704495) is active in the NPPES registry as of the last update on 2022-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.