Doctor profile · Federal record
Dr. Tammy O'Riley, FNP-C
Nurse Practitioner · Nurse Practitioner · San Diego, CA
- NPI 1235413436
- Accepts Medicare
- 29 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
200 W Arbor Dr
San Diego, CA 921039000
(800) 926-8273 - Additional location
-
10815 W McDowell RD Ste 304
Avondale, AZ 853925016
(602) 494-5040
fax (602) 494-4020 - Mailing address
-
Po Box 232410
San Diego, CA 921932410
Credentials & registration
- NPI registered
- October 2011 — 15 yrs on file
- Profile last updated
- November 9, 2020
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State licenses (2)
- California #NP9154 · Arizona #AP0624
- Medicaid
- AZ #582347
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1235413436. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
455
Distinct HCPCS
4
Medicare allowed
$42,455
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 250 | 146 | $139 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 161 | 95 | $31 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 30 | 26 | $89 | |
83036 |
Hemoglobin a1c level | 14 | 13 | $10 |
In context: peer comparison
Among 53 peers in this city , average services per provider: 106. This provider delivers 4.3× the peer median.Open Payments
Industry payments received
All-time total
$98
Transactions
3
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Insulet Corporation | 2 | $68.15 | |
| Abbott Laboratories | 1 | $29.97 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
984
Patients
336
Total drug cost
$847,908
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Mounjaro (Tirzepatide) | Brand | 149 | 33 | $167,742 |
| Trulicity (Dulaglutide) | Brand | 118 | 29 | $156,761 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 91 | 40 | $58,190 |
| Tresiba Flextouch U-100 (Insulin Degludec) | Brand | 75 | 29 | $61,845 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 74 | 32 | $1,212 |
| Ozempic (Semaglutide) | Brand | 73 | 19 | $95,223 |
| Baqsimi (Glucagon) | Brand | 59 | 33 | $36,335 |
| Nano 2nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 57 | 32 | $5,226 |
| Jardiance (Empagliflozin) | Brand | 53 | 20 | $82,332 |
| Novolog Flexpen (Insulin Aspart) | Brand | 48 | 17 | $36,919 |
Hospital affiliations
Frequently asked questions
What is Dr. Tammy O'Riley's medical specialty?
Dr. Tammy O'Riley practices Nurse Practitioner in San Diego, CA.
Where does Dr. Tammy O'Riley practice?
Dr. Tammy O'Riley practices at 200 W Arbor Dr, San Diego, CA 921039000. Office phone: 8009268273.
What is Dr. Tammy O'Riley's NPI?
Dr. Tammy O'Riley's National Provider Identifier (NPI) is 1235413436, issued by NPPES.
Does Dr. Tammy O'Riley accept Medicare assignment?
Yes. Dr. Tammy O'Riley accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tammy O'Riley commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.