Doctor profile · Federal record

Dr. Chanel O'Brien, DO

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

  • NPI 1326532904
  • Accepts Medicare
  • 8 yrs in practice
  • Licensed in 5 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1521 Gull RD
Kalamazoo, MI 490481640
(269) 226-7000
Mailing address
905 Calvin Ave Se
Grand Rapids, MI 495063232

Credentials & registration

NPPES · NUCC
NPI registered
June 2018 — 8 yrs on file
Profile last updated
March 7, 2024
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (5)
New York #314330 · Michigan #5101027655 · Pennsylvania #OT018434 · Ohio #34.015540 · Indiana #02006932A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1326532904. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
347
Distinct HCPCS
8
Medicare allowed
$34,134
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 84 84 $170
99284 Emergency department visit with moderate level of medical decision making 82 81 $114
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 49 48 $8
99203 New patient office or other outpatient visit, 30-44 minutes 37 37 $77
99283 Emergency department visit with low level of medical decision making 37 37 $64
99213 Established patient office or other outpatient visit, 20-29 minutes 31 29 $62
99204 New patient office or other outpatient visit, 45-59 minutes 16 16 $124
99214 Established patient office or other outpatient visit, 30-39 minutes 11 11 $91

In context: peer comparison

Among 58 peers in Kalamazoo Emergency Medicine Physician, average services per provider: 92. This provider delivers 3.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
206
Patients
205
Total drug cost
$1,162
Drug Type Claims Patients Total cost
Ibuprofen Generic 57 57 $173
Prednisone Generic 36 36 $73
Ondansetron Odt (Ondansetron) Brand 18 18 $241
Cephalexin Generic 17 16 $99
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 15 15 $179
Azithromycin Generic 14 14 $71
Doxycycline Monohydrate Generic 13 13 $155
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 13 13 $35
Oxycodone Hcl Generic 12 12 $30
Methylprednisolone Generic 11 11 $104

Frequently asked questions

Auto-generated from federal data
What is Dr. Chanel O'Brien's medical specialty?
Dr. Chanel O'Brien practices Emergency Medicine Physician in Kalamazoo, MI.
Where does Dr. Chanel O'Brien practice?
Dr. Chanel O'Brien practices at 1521 Gull RD, Kalamazoo, MI 490481640. Office phone: 2692267000.
What is Dr. Chanel O'Brien's NPI?
Dr. Chanel O'Brien's National Provider Identifier (NPI) is 1326532904, issued by NPPES.
Does Dr. Chanel O'Brien accept Medicare assignment?
Yes. Dr. Chanel O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chanel O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.