Doctor profile · Federal record

Dr. Sara O'Brien, MSN, FNP-C, Tcrn

Family Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · Aberdeen, MD

  • NPI 1235896523
  • Accepts Medicare
  • 11 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
744 S Philadelphia Blvd Ste B
Aberdeen, MD 210013655
(443) 345-2650
Mailing address
710 Colgate Ln
Newark, DE 197113132

Credentials & registration

NPPES · NUCC
NPI registered
November 2021 — 5 yrs on file
Profile last updated
August 23, 2024
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Maryland #AC004061

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235896523. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
586
Distinct HCPCS
10
Medicare allowed
$41,931
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 260 242 $77
99203 New patient office or other outpatient visit, 30-44 minutes 125 125 $96
81003 Automated urinalysis test 47 45 $2
99214 Established patient office or other outpatient visit, 30-39 minutes 43 43 $109
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 32 32 $16
99204 New patient office or other outpatient visit, 45-59 minutes 24 24 $142
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 16 16 $12
87804 Detection test by immunoassay with direct visual observation for influenza virus 15 15 $16
90471 Administration of vaccine 12 12 $17
90715 Diphtheria, tetanus, and acellular pertussis vaccine (7 years or older) 12 11 $38

In context: peer comparison

Among 2 peers in Aberdeen Family Nurse Practitioner, average services per provider: 51. This provider delivers 11× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
341
Patients
325
Total drug cost
$3,607
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 51 51 $417
Fluticasone Propionate Generic 49 48 $670
Prednisone Generic 46 44 $109
Doxycycline Hyclate Generic 44 44 $643
Cephalexin Generic 42 42 $316
Ibuprofen Generic 21 20 $70
Ipratropium Bromide Generic 19 19 $542
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 17 17 $516
Cyclobenzaprine Hcl Generic 14 14 $45
Mupirocin Generic 14 14 $109

Frequently asked questions

Auto-generated from federal data
What is Dr. Sara O'Brien's medical specialty?
Dr. Sara O'Brien practices Family Nurse Practitioner in Aberdeen, MD.
Where does Dr. Sara O'Brien practice?
Dr. Sara O'Brien practices at 744 S Philadelphia Blvd Ste B, Aberdeen, MD 210013655. Office phone: 4433452650.
What is Dr. Sara O'Brien's NPI?
Dr. Sara O'Brien's National Provider Identifier (NPI) is 1235896523, issued by NPPES.
Does Dr. Sara O'Brien accept Medicare assignment?
Yes. Dr. Sara O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sara O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); Automated urinalysis test (HCPCS 81003). Source: CMS Medicare Physician & Other Practitioners file.