Doctor profile · Federal record
Dr. Ralph Marcus
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Irvine, CA
- NPI 1346566056
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 17 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
7 Aberdeen St
Irvine, CA 926203302
(949) 302-1362
Credentials & registration
- NPI registered
- April 2010 — 16 yrs on file
- Profile last updated
- June 19, 2025
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- California #A139091
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346566056. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,913
Distinct HCPCS
10
Medicare allowed
$132,699
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
71045 |
X-ray of chest, 1 view | 705 | 559 | $9 | |
70450 |
Ct scan head or brain without contrast | 304 | 290 | $42 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 200 | 183 | $13 | |
74176 |
Ct scan of abdomen and pelvis without contrast | 188 | 181 | $88 | |
76937 |
Ultrasonic guidance for blood vessel access | 104 | 95 | $15 | |
74018 |
X-ray of abdomen, 1 view | 74 | 63 | $9 | |
77001 |
Fluoroscopic guidance for insertion or removal of central vein access device | 70 | 67 | $19 | |
71250 |
Ct scan of chest without contrast | 66 | 64 | $54 | |
73030 |
X-ray of shoulder, minimum of 2 views | 60 | 51 | $10 | |
70498 |
Ct scan of blood vessels of neck with contrast | 59 | 58 | $85 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 161. This provider delivers 18× the peer median.Frequently asked questions
What is Dr. Ralph Marcus's medical specialty?
Dr. Ralph Marcus practices Diagnostic Radiology Physician in Irvine, CA.
Where does Dr. Ralph Marcus practice?
Dr. Ralph Marcus practices at 7 Aberdeen St, Irvine, CA 926203302. Office phone: 9493021362.
What is Dr. Ralph Marcus's NPI?
Dr. Ralph Marcus's National Provider Identifier (NPI) is 1346566056, issued by NPPES.
Does Dr. Ralph Marcus accept Medicare assignment?
Yes. Dr. Ralph Marcus accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ralph Marcus commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older) (HCPCS 99152). Source: CMS Medicare Physician & Other Practitioners file.