Doctor profile · Federal record
Dr. Katharine O'Brien, DO
Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Menifee, CA
- NPI 1083720718
- Accepts Medicare
- 31 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
30420 Haun RD
Menifee, CA 925846810
(951) 676-4193
fax (951) 719-1469 - Mailing address
-
28780 Single Oak Dr, Ste 160
Temecula, CA 925905528
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- April 18, 2017
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (2)
- California #20A7203 · Texas #K6898
- Medicaid (3)
- TX #044569403 · TX #044569404 · TX #044569401
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083720718. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
227
Distinct HCPCS
3
Medicare allowed
$21,501
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 95 | 41 | $132 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 86 | 39 | $94 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 46 | 46 | $19 |
In context: peer comparison
Among 7 peers in Menifee Family Medicine Physician, average services per provider: 77. This provider delivers 2.9× the peer median.Open Payments
Industry payments received
All-time total
$150
Transactions
7
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, INC. | 3 | $70.86 | |
| GlaxoSmithKline, LLC. | 2 | $30.90 | |
| Phathom Pharmaceuticals, INC. | 1 | $26.15 | |
| Medtronic, INC. | 1 | $21.77 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,697
Patients
740
Total drug cost
$39,959
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 452 | 123 | $8,033 |
| Amlodipine Besylate | Generic | 322 | 92 | $3,356 |
| Levothyroxine Sodium | Generic | 270 | 60 | $3,800 |
| Metoprolol Succinate | Generic | 243 | 65 | $4,692 |
| Lisinopril | Generic | 239 | 72 | $2,047 |
| Losartan Potassium | Generic | 199 | 49 | $3,062 |
| Metformin Hcl | Generic | 197 | 50 | $2,584 |
| Omeprazole | Generic | 136 | 40 | $1,831 |
| Gabapentin | Generic | 118 | 30 | $1,914 |
| Simvastatin | Generic | 114 | 33 | $1,090 |
Frequently asked questions
What is Dr. Katharine O'Brien's medical specialty?
Dr. Katharine O'Brien practices Family Medicine Physician in Menifee, CA.
Where does Dr. Katharine O'Brien practice?
Dr. Katharine O'Brien practices at 30420 Haun RD, Menifee, CA 925846810. Office phone: 9516764193.
What is Dr. Katharine O'Brien's NPI?
Dr. Katharine O'Brien's National Provider Identifier (NPI) is 1083720718, issued by NPPES.
Does Dr. Katharine O'Brien accept Medicare assignment?
Yes. Dr. Katharine O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katharine O'Brien 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 99213); Annual depression screening, 5 to 15 minutes (HCPCS G0444). Source: CMS Medicare Physician & Other Practitioners file.