Doctor profile · Federal record
Dr. Siamak Marzban, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · San Pedro, CA
- NPI 1164447959
- Accepts Medicare
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2403 S Moray Ave, Ste 2B
San Pedro, CA 907324358
(310) 832-2694
fax (310) 547-0140
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- February 20, 2017
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A48221
- Medicaid
- CA #00A482211
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164447959. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
447
Distinct HCPCS
5
Medicare allowed
$64,373
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 186 | 48 | $139 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 139 | 33 | $194 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 97 | 33 | $98 | |
36415 |
Insertion of needle into vein for collection of blood sample | 14 | 12 | $8 | |
G0438 |
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | 11 | 11 | $178 |
In context: peer comparison
Among 2 peers in San Pedro Internal Medicine Physician, average services per provider: 120. This provider delivers 3.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,010
Patients
208
Total drug cost
$15,765
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 174 | 35 | $3,143 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 111 | 18 | $2,997 |
| Lisinopril | Generic | 107 | 23 | $1,579 |
| Levothyroxine Sodium | Generic | 87 | 15 | $1,259 |
| Omeprazole | Generic | 86 | 14 | $812 |
| Ibuprofen | Generic | 66 | 23 | $988 |
| Escitalopram Oxalate | Generic | 56 | 0 | $1,011 |
| Amlodipine Besylate | Generic | 50 | 13 | $725 |
| Hydrochlorothiazide | Generic | 46 | 0 | $86 |
| Ciprofloxacin Hcl | Generic | 43 | 21 | $322 |
Hospital affiliations
Frequently asked questions
What is Dr. Siamak Marzban's medical specialty?
Dr. Siamak Marzban practices Internal Medicine Physician in San Pedro, CA.
Where does Dr. Siamak Marzban practice?
Dr. Siamak Marzban practices at 2403 S Moray Ave, San Pedro, CA 907324358. Office phone: 3108322694.
What is Dr. Siamak Marzban's NPI?
Dr. Siamak Marzban's National Provider Identifier (NPI) is 1164447959, issued by NPPES.
Does Dr. Siamak Marzban accept Medicare assignment?
Yes. Dr. Siamak Marzban accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Siamak Marzban commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.