Doctor profile · Federal record
Dr. Mark Salem
Gastroenterology Physician (CMS: Gastroenterology) · Orange, CA
- NPI 1821356254
- Accepts Medicare
- MIPS 91.2 / 100 · 2023
- 14 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
101 the City Dr S Ste 400
Orange, CA 928683201
(714) 456-7358 - Additional location
-
1200 N State St, CT-A7D
Los Angeles, CA 900331029
(323) 226-7556
fax (323) 226-2657
Credentials & registration
- NPI registered
- April 2012 — 14 yrs on file
- Profile last updated
- February 4, 2020
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A127236
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821356254. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
21
Distinct HCPCS
1
Medicare allowed
$2,196
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 21 | 12 | $105 |
In context: peer comparison
Among 16 peers in Orange Gastroenterology Physician, average services per provider: 65. This provider delivers 0.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
41
Patients
0
Total drug cost
$871,228
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Stelara (Ustekinumab) | Brand | 29 | 0 | $862,628 |
| Mesalamine | Generic | 12 | 0 | $8,600 |
Frequently asked questions
What is Dr. Mark Salem's medical specialty?
Dr. Mark Salem practices Gastroenterology Physician in Orange, CA.
Where does Dr. Mark Salem practice?
Dr. Mark Salem practices at 101 the City Dr S Ste 400, Orange, CA 928683201. Office phone: 7144567358.
What is Dr. Mark Salem's NPI?
Dr. Mark Salem's National Provider Identifier (NPI) is 1821356254, issued by NPPES.
Does Dr. Mark Salem accept Medicare assignment?
Yes. Dr. Mark Salem accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Salem commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.