Doctor profile · Federal record
Dr. Sean O'Brien, D.O.
Internal Medicine Physician (CMS: Internal Medicine) · Nephrology Physician · Nogales, AZ
- NPI 1912994500
- Accepts Medicare
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3231 N Grand Ave
Nogales, AZ 856213905
(520) 281-1550
fax (520) 281-1112 - Mailing address
-
825 N Grand Ave Ste 100
Nogales, AZ 856211061
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- January 17, 2024
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Arizona #2883
- Medicaid
- AZ #320664
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1912994500. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$37
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 1 | $21.56 | |
| Medacta USA, INC. | 1 | $14.94 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,126
Patients
452
Total drug cost
$274,842
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metformin Hcl | Generic | 169 | 64 | $3,213 |
| Atorvastatin Calcium | Generic | 144 | 56 | $3,096 |
| Lisinopril | Generic | 124 | 48 | $2,013 |
| Amlodipine Besylate | Generic | 83 | 32 | $998 |
| Rosuvastatin Calcium | Generic | 70 | 30 | $1,377 |
| Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) | Brand | 69 | 17 | $45,048 |
| Jardiance (Empagliflozin) | Brand | 67 | 20 | $91,919 |
| Trulicity (Dulaglutide) | Brand | 64 | 15 | $120,386 |
| Losartan Potassium | Generic | 61 | 25 | $1,571 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 57 | 20 | $1,111 |
Frequently asked questions
What is Dr. Sean O'Brien's medical specialty?
Dr. Sean O'Brien practices Internal Medicine Physician in Nogales, AZ.
Where does Dr. Sean O'Brien practice?
Dr. Sean O'Brien practices at 3231 N Grand Ave, Nogales, AZ 856213905. Office phone: 5202811550.
What is Dr. Sean O'Brien's NPI?
Dr. Sean O'Brien's National Provider Identifier (NPI) is 1912994500, issued by NPPES.
Does Dr. Sean O'Brien accept Medicare assignment?
Yes. Dr. Sean O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.