Doctor profile · Federal record
Dr. James Mangan, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · San Diego, CA
- NPI 1720107121
- Accepts Medicare
- 21 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
200 W Arbor Dr
San Diego, CA 921039000
(800) 926-8273
fax (888) 539-8781 - Additional location
-
3855 Health Sciences Dr
La Jolla, CA 920931503 - Mailing address
-
File 53726
Los Angeles, CA 900740001
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- November 14, 2025
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- California #C163310
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720107121. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
595
Distinct HCPCS
3
Medicare allowed
$79,055
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 327 | 58 | $121 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 234 | 67 | $148 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 34 | 13 | $137 |
In context: peer comparison
Among 34 peers in San Diego Hematology & Oncology Physician, average services per provider: 650. This provider delivers 0.9× the peer median.Open Payments
Industry payments received
All-time total
$11,302
Transactions
17
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Astellas Pharma US INC | 11 | $7,208.99 | |
| Daiichi Sankyo INC. | 6 | $4,093.28 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
612
Patients
64
Total drug cost
$1,302,692
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Acyclovir | Generic | 112 | 27 | $3,812 |
| Oxycodone Hcl | Generic | 53 | 0 | $788 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 49 | 14 | $352 |
| Prednisone | Generic | 46 | 0 | $501 |
| Dexamethasone | Generic | 44 | 0 | $1,086 |
| Jakafi (Ruxolitinib Phosphate) | Brand | 38 | 0 | $539,276 |
| Fluconazole | Generic | 36 | 0 | $2,656 |
| Revlimid (Lenalidomide) | Brand | 35 | 0 | $633,255 |
| Levofloxacin | Generic | 34 | 12 | $1,240 |
| Eliquis (Apixaban) | Brand | 33 | 0 | $23,333 |
Hospital affiliations
Frequently asked questions
What is Dr. James Mangan's medical specialty?
Dr. James Mangan practices Hematology & Oncology Physician in San Diego, CA.
Where does Dr. James Mangan practice?
Dr. James Mangan practices at 200 W Arbor Dr, San Diego, CA 921039000. Office phone: 8009268273.
What is Dr. James Mangan's NPI?
Dr. James Mangan's National Provider Identifier (NPI) is 1720107121, issued by NPPES.
Does Dr. James Mangan accept Medicare assignment?
Yes. Dr. James Mangan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Mangan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.