John Ellis, D.O.
NPI 1003221037 · Emergency Medicine Physician · Bronx, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Ellis, D.O. is a Emergency Medicine Physician provider in Bronx, NY (NPI 1003221037).
Provider details
- NPI number
- 1003221037
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 160849 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
601 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 323 | $174 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 150 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 77 | $121 |
| Critical Care, First 30-74 Minutes99291 | 51 | $212 |
Typical Medicare-allowed amounts for these services range $8–$212 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 54 | 51 |
| Ibuprofen | 42 | 40 |
| Cephalexin | 25 | 24 |
| Dicyclomine Hcl | 18 | 17 |
| Methylprednisolone | 18 | 18 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 17 | 15 |
| Prednisone | 15 | 15 |
Practice location
Mailing address
Additional practice locations (2)
- 1101 26th St SGreat Falls, MT 59405-5161Phone: (406) 455-5200Fax: (406) 455-5251
- 26 Hatch TerDobbs Ferry, NY 10522-2813Phone: (727) 417-6369
Registry dates
- Enumerated
- 2014-06-28
- Last updated
- 2025-11-24
- Certified
- 2025-11-24
Frequently asked questions
- What is John Ellis's NPI number?
- John Ellis's National Provider Identifier (NPI) is 1003221037, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Ellis's specialty?
- John Ellis is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Ellis located?
- John Ellis's practice location on file with NPPES is 4422 Third Ave, Bronx, NY 10457.
- What is John Ellis's phone number?
- The practice phone number listed in the NPPES registry for John Ellis is (718) 960-9000.
- Does John Ellis accept Medicare?
- John Ellis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Ellis's NPI active?
- Yes — John Ellis's NPI (1003221037) is active in the NPPES registry as of the last update on 2025-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.