Doctor profile · Federal record

Dr. Danielle O'Brien, PA-C

Physician Assistant · Baltimore, MD

  • NPI 1366040362
  • Accepts Medicare
  • MIPS 88.1 / 100 · 2023
  • 6 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9000 Franklin Square Dr
Baltimore, MD 212373901
(443) 777-9000

Credentials & registration

NPPES · NUCC
NPI registered
October 2020 — 6 yrs on file
Profile last updated
April 11, 2023
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Maryland #C0007732

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366040362. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
130
Distinct HCPCS
2
Medicare allowed
$18,896
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 104 104 $155
99284 Emergency department visit with moderate level of medical decision making 26 26 $107

In context: peer comparison

Among 215 peers in Baltimore Physician Assistant, average services per provider: 82. This provider delivers 1.6× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Danielle O'Brien's medical specialty?
Dr. Danielle O'Brien practices Physician Assistant in Baltimore, MD.
Where does Dr. Danielle O'Brien practice?
Dr. Danielle O'Brien practices at 9000 Franklin Square Dr, Baltimore, MD 212373901. Office phone: 4437779000.
What is Dr. Danielle O'Brien's NPI?
Dr. Danielle O'Brien's National Provider Identifier (NPI) is 1366040362, issued by NPPES.
Does Dr. Danielle O'Brien accept Medicare assignment?
Yes. Dr. Danielle O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Danielle 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). Source: CMS Medicare Physician & Other Practitioners file.