Doctor profile · Federal record
Dr. Hitomi Hosoya, MD
Hematology (Internal Medicine) Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Internal Medicine Physician · Los Angeles, CA
- NPI 1265895817
- Accepts Medicare
- 17 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
127 S San Vicente Blvd Fl 7
Los Angeles, CA 900483311
(310) 423-1160
fax (310) 423-4646 - Additional location
-
8700 Beverly Blvd
West Hollywood, CA 900481804 - Mailing address
-
4140 W 190Th St
Torrance, CA 905045513
Credentials & registration
- NPI registered
- March 2016 — 10 yrs on file
- Profile last updated
- November 4, 2025
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207RH0000X — NUCC code
- State licenses (2)
- California #A163013 · Pennsylvania #MT210849
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265895817. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
156
Distinct HCPCS
2
Medicare allowed
$21,588
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 135 | 15 | $135 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 21 | 12 | $163 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 54. This provider delivers 2.9× the peer median.Open Payments
Industry payments received
All-time total
$125
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Celgene Corporation | 1 | $124.88 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
62
Patients
11
Total drug cost
$1,466
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Acyclovir | Generic | 48 | 11 | $1,342 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 14 | 0 | $124 |
Hospital affiliations
Frequently asked questions
What is Dr. Hitomi Hosoya's medical specialty?
Dr. Hitomi Hosoya practices Hematology (Internal Medicine) Physician in Los Angeles, CA.
Where does Dr. Hitomi Hosoya practice?
Dr. Hitomi Hosoya practices at 127 S San Vicente Blvd Fl 7, Los Angeles, CA 900483311. Office phone: 3104231160.
What is Dr. Hitomi Hosoya's NPI?
Dr. Hitomi Hosoya's National Provider Identifier (NPI) is 1265895817, issued by NPPES.
Does Dr. Hitomi Hosoya accept Medicare assignment?
Yes. Dr. Hitomi Hosoya accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hitomi Hosoya 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). Source: CMS Medicare Physician & Other Practitioners file.