Ellyn Gray, MD
NPI 1881187367 · Anesthesiology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellyn Gray, MD is a Anesthesiology Physician provider in Grand Rapids, MI (NPI 1881187367).
Provider details
- NPI number
- 1881187367
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301509128 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
88 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 38 | $42 |
| Anesthesia for Procedure on Heart and Large Blood Vessels Using Heart-Lung Machine (1 Year Or Older)00562 | 13 | $880 |
| Ultrasound of Heart With Probe in Esophagus, With Report93312 | 13 | $100 |
| Ultrasound of Heart Blood Flow, Valves and Chambers93320 | 13 | $17 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 11 | $3 |
Typical Medicare-allowed amounts for these services range $3–$880 (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.
Practice location
Mailing address
Additional practice locations (1)
- 3333 Evergreen Dr NeGrand Rapids, MI 49525-9493Phone: (616) 364-4200Fax: (616) 364-7347
Registry dates
- Enumerated
- 2018-06-11
- Last updated
- 2023-05-02
- Certified
- 2023-05-02
Frequently asked questions
- What is Ellyn Gray's NPI number?
- Ellyn Gray's National Provider Identifier (NPI) is 1881187367, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellyn Gray's specialty?
- Ellyn Gray is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ellyn Gray located?
- Ellyn Gray's practice location on file with NPPES is 100 Michigan St Ne, Grand Rapids, MI 49503-2560.
- What is Ellyn Gray's phone number?
- The practice phone number listed in the NPPES registry for Ellyn Gray is (616) 364-4200.
- Does Ellyn Gray accept Medicare?
- Ellyn Gray is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellyn Gray's NPI active?
- Yes — Ellyn Gray's NPI (1881187367) is active in the NPPES registry as of the last update on 2023-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.