Doctor profile · Federal record
Dr. Areg Grigorian, MD
Surgical Critical Care Physician (CMS: General Surgery) · Orange, CA
- NPI 1538579578
- Accepts Medicare
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
101 the City Dr S
Orange, CA 928683201
(714) 880-7812 - Additional location
-
1500 San Pablo St Fl 7
Los Angeles, CA 900335313
(323) 442-6254 - Mailing address
-
200 S Manchester Ave Ste 300
Orange, CA 928683219
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- December 22, 2022
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 2086S0102X — NUCC code
- State license (1)
- California #A138676
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538579578. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
589
Distinct HCPCS
10
Medicare allowed
$74,598
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 172 | 88 | $124 | |
99291 |
Critical care, first 30-74 minutes | 126 | 97 | $222 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 49 | 49 | $187 | |
76604 |
Ultrasound scan of chest | 46 | 46 | $28 | |
76705 |
Limited ultrasound scan of abdomen | 46 | 46 | $30 | |
76775 |
Limited ultrasound scan behind abdominal cavity | 43 | 43 | $29 | |
93308 |
Ultrasound of heart, follow-up | 38 | 38 | $26 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 33 | 33 | $182 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 21 | 19 | $147 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 15 | 15 | $140 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 58. This provider delivers 10× the peer median.Open Payments
Industry payments received
All-time total
$1,500
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| INTUITIVE SURGICAL, INC. | 1 | $1,500.00 |
By nature of payment
Frequently asked questions
What is Dr. Areg Grigorian's medical specialty?
Dr. Areg Grigorian practices Surgical Critical Care Physician in Orange, CA.
Where does Dr. Areg Grigorian practice?
Dr. Areg Grigorian practices at 101 the City Dr S, Orange, CA 928683201. Office phone: 7148807812.
What is Dr. Areg Grigorian's NPI?
Dr. Areg Grigorian's National Provider Identifier (NPI) is 1538579578, issued by NPPES.
Does Dr. Areg Grigorian accept Medicare assignment?
Yes. Dr. Areg Grigorian accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Areg Grigorian commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.