Eugene Tay, MD
NPI 1275589863 · Hospitalist Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eugene Tay, MD is a Hospitalist Physician provider in Grand Rapids, MI (NPI 1275589863).
Provider details
- NPI number
- 1275589863
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301076395 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
181 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 104 | $72 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 26 | $160 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 26 | $77 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 13 | $113 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 12 | $93 |
Typical Medicare-allowed amounts for these services range $72–$160 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
Practice location
Mailing address
Additional practice locations (1)
- 5171 Plainfield Ave NeGrand Rapids, MI 49525-1048Phone: (616) 685-8350Fax: (616) 363-8870
Registry dates
- Enumerated
- 2006-05-25
- Last updated
- 2022-04-27
- Certified
- 2022-04-27
Frequently asked questions
- What is Eugene Tay's NPI number?
- Eugene Tay's National Provider Identifier (NPI) is 1275589863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eugene Tay's specialty?
- Eugene Tay is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Eugene Tay located?
- Eugene Tay's practice location on file with NPPES is 300 Lafayette Ave Se, Grand Rapids, MI 49503-4692.
- What is Eugene Tay's phone number?
- The practice phone number listed in the NPPES registry for Eugene Tay is (616) 685-6922.
- Does Eugene Tay accept Medicare?
- Eugene Tay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eugene Tay's NPI active?
- Yes — Eugene Tay's NPI (1275589863) is active in the NPPES registry as of the last update on 2022-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.