Doctor profile · Federal record
Dr. Mowbray Hagan, MD
Internal Medicine Physician (CMS: Internal Medicine) · Corona, CA
- NPI 1235145590
- 52 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
760 Washburn Ave Ste 4
Corona, CA 928823303
(951) 734-6110
fax (951) 734-9989
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- December 11, 2025
- Year of graduation
- 1974 — 52 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A29431
- Medicaid
- CA #00A294310
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1235145590. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
275
Distinct HCPCS
2
Medicare allowed
$31,723
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 249 | 96 | $114 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 26 | 26 | $127 |
In context: peer comparison
Among 14 peers in Corona Internal Medicine Physician, average services per provider: 90. This provider delivers 3.1× the peer median.Open Payments
Industry payments received
All-time total
$578
Transactions
32
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 18 | $272.37 | |
| Novo Nordisk INC | 8 | $163.34 | |
| Lilly USA, LLC | 4 | $102.32 | |
| Ibsa Pharma INC. | 1 | $21.69 | |
| Sumitomo Pharma America, INC. | 1 | $18.48 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,001
Patients
692
Total drug cost
$325,435
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 442 | 108 | $6,954 |
| Amlodipine Besylate | Generic | 277 | 62 | $2,676 |
| Ozempic (Semaglutide) | Brand | 248 | 35 | $287,710 |
| Metformin Hcl | Generic | 230 | 60 | $2,824 |
| Hydrochlorothiazide | Generic | 202 | 42 | $1,009 |
| Losartan Potassium | Generic | 199 | 48 | $2,920 |
| Levothyroxine Sodium | Generic | 192 | 40 | $3,027 |
| Lisinopril | Generic | 189 | 48 | $2,402 |
| Gabapentin | Generic | 169 | 37 | $2,989 |
| Alprazolam | Generic | 157 | 25 | $1,483 |
Frequently asked questions
What is Dr. Mowbray Hagan's medical specialty?
Dr. Mowbray Hagan practices Internal Medicine Physician in Corona, CA.
Where does Dr. Mowbray Hagan practice?
Dr. Mowbray Hagan practices at 760 Washburn Ave Ste 4, Corona, CA 928823303. Office phone: 9517346110.
What is Dr. Mowbray Hagan's NPI?
Dr. Mowbray Hagan's National Provider Identifier (NPI) is 1235145590, issued by NPPES.
Does Dr. Mowbray Hagan accept Medicare assignment?
Dr. Mowbray Hagan does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Mowbray Hagan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.