Doctor profile · Federal record

Dr. John Ellis, D.O.

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Student in an Organized Health Care Education/Training Program · Emergency Medicine Physician · Bronx, NY

  • NPI 1003221037
  • Accepts Medicare
  • 12 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
4422 Third Ave
Bronx, NY 10457
(718) 960-9000
Additional location
1101 26Th St S
Great Falls, MT 594055161
(406) 455-5200
fax (406) 455-5251
Additional location
26 Hatch Ter
Dobbs Ferry, NY 105222813
(727) 417-6369
Mailing address
6751 Eagle Ridge Blvd
Lakeland, FL 338135636

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
November 24, 2025
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (3)
California #22891 · Montana #160849 · Florida #OS15644

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003221037. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
438
Distinct HCPCS
4
Medicare allowed
$56,911
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 224 217 $178
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 107 103 $8
99284 Emergency department visit with moderate level of medical decision making 73 71 $121
99291 Critical care, first 30-74 minutes 34 34 $214

In context: peer comparison

Among 157 peers in Bronx Emergency Medicine Physician, average services per provider: 73. This provider delivers 6.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
125
Patients
124
Total drug cost
$550
Drug Type Claims Patients Total cost
Ibuprofen Generic 35 34 $91
Ondansetron Odt (Ondansetron) Brand 29 29 $184
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 17 17 $103
Prednisone Generic 17 17 $30
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 14 14 $85
Dicyclomine Hcl Generic 13 13 $56

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. John Ellis's medical specialty?
Dr. John Ellis practices Emergency Medicine Physician in Bronx, NY.
Where does Dr. John Ellis practice?
Dr. John Ellis practices at 4422 Third Ave, Bronx, NY 10457. Office phone: 7189609000.
What is Dr. John Ellis's NPI?
Dr. John Ellis's National Provider Identifier (NPI) is 1003221037, issued by NPPES.
Does Dr. John Ellis accept Medicare assignment?
Yes. Dr. John Ellis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Ellis commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.