Doctor profile · Federal record

Dr. Caoilfhionn O'Connor, DNP

Nurse Practitioner · Family Nurse Practitioner · La Jolla, CA

  • NPI 1184386864
  • Accepts Medicare
  • 5 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3855 Health Sciences Dr
La Jolla, CA 920931503
(858) 822-6100
Additional location
200 W Arbor Dr
San Diego, CA 921039000
(800) 926-8273
Mailing address
File 57326
Los Angeles, CA 900740001

Credentials & registration

NPPES · NUCC
NPI registered
October 2021 — 5 yrs on file
Profile last updated
March 14, 2025
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
California #NP95018331 · California #95018331

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184386864. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
204
Distinct HCPCS
3
Medicare allowed
$20,161
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 90 54 $86
99215 Established patient office or other outpatient visit, 40-54 minutes 81 46 $126
38222 Biopsy and aspiration of bone marrow sample for diagnosis 33 30 $67

In context: peer comparison

Among 16 peers in this city , average services per provider: 123. This provider delivers 1.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
218
Patients
59
Total drug cost
$17,183
Drug Type Claims Patients Total cost
Acyclovir Generic 61 24 $3,164
Potassium Chloride Generic 29 12 $361
Tramadol Hcl Generic 20 12 $82
Dapsone Generic 19 0 $1,150
Eliquis (Apixaban) Brand 15 0 $9,180
Levofloxacin Generic 14 11 $164
Clobetasol Emollient (Clobetasol Propionate/Emoll) Brand 13 0 $2,500
Prednisone Generic 13 0 $171
Ondansetron Hcl Generic 12 0 $171
Dexamethasone Generic 11 0 $142

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Caoilfhionn O'Connor's medical specialty?
Dr. Caoilfhionn O'Connor practices Nurse Practitioner in La Jolla, CA.
Where does Dr. Caoilfhionn O'Connor practice?
Dr. Caoilfhionn O'Connor practices at 3855 Health Sciences Dr, La Jolla, CA 920931503. Office phone: 8588226100.
What is Dr. Caoilfhionn O'Connor's NPI?
Dr. Caoilfhionn O'Connor's National Provider Identifier (NPI) is 1184386864, issued by NPPES.
Does Dr. Caoilfhionn O'Connor accept Medicare assignment?
Yes. Dr. Caoilfhionn O'Connor accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Caoilfhionn O'Connor commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Biopsy and aspiration of bone marrow sample for diagnosis (HCPCS 38222). Source: CMS Medicare Physician & Other Practitioners file.