Doctor profile · Federal record
Dr. Marianne Ryan, MD
Surgery Physician (CMS: General Surgery) · Harbor City, CA
- NPI 1336216183
- Accepts Medicare
- 37 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
25825 Vermont Ave
Harbor City, CA 907103518
(310) 325-5111
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- December 1, 2021
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- California #G70306
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336216183. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$254
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 1 | $155.41 | |
| Pfizer INC. | 1 | $98.65 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
34
Patients
29
Total drug cost
$267
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 34 | 29 | $267 |
Frequently asked questions
What is Dr. Marianne Ryan's medical specialty?
Dr. Marianne Ryan practices Surgery Physician in Harbor City, CA.
Where does Dr. Marianne Ryan practice?
Dr. Marianne Ryan practices at 25825 Vermont Ave, Harbor City, CA 907103518. Office phone: 3103255111.
What is Dr. Marianne Ryan's NPI?
Dr. Marianne Ryan's National Provider Identifier (NPI) is 1336216183, issued by NPPES.
Does Dr. Marianne Ryan accept Medicare assignment?
Yes. Dr. Marianne Ryan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.