Doctor profile · Federal record
Dr. Masaharu Osato, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Torrance, CA
- NPI 1265470280
- Accepts Medicare
- 43 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2860 Sepulveda Blvd
Torrance, CA 905052803
(310) 534-8200
fax (310) 534-8200
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- March 1, 2026
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #G060449
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265470280. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
7,718
Distinct HCPCS
10
Medicare allowed
$238,972
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 4,620 | 42 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 354 | 163 | $128 | |
36415 |
Insertion of needle into vein for collection of blood sample | 346 | 169 | $8 | |
80053 |
Blood test, comprehensive group of blood chemicals | 305 | 161 | $10 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 295 | 160 | $13 | |
99211 |
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 271 | 149 | $26 | |
83036 |
Hemoglobin a1c level | 252 | 146 | $10 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 234 | 153 | $8 | |
82306 |
Vitamin d-3 level | 159 | 141 | $29 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 140 | 107 | $16 |
In context: peer comparison
Among 19 peers in Torrance Gastroenterology Physician, average services per provider: 105. This provider delivers 74× the peer median.Open Payments
Industry payments received
All-time total
$29
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 1 | $29.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
47
Patients
30
Total drug cost
$9,451
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Shingrix (Varicella-Zoster Ge/As01b/Pf) | Brand | 47 | 30 | $9,451 |
Frequently asked questions
What is Dr. Masaharu Osato's medical specialty?
Dr. Masaharu Osato practices Gastroenterology Physician in Torrance, CA.
Where does Dr. Masaharu Osato practice?
Dr. Masaharu Osato practices at 2860 Sepulveda Blvd, Torrance, CA 905052803. Office phone: 3105348200.
What is Dr. Masaharu Osato's NPI?
Dr. Masaharu Osato's National Provider Identifier (NPI) is 1265470280, issued by NPPES.
Does Dr. Masaharu Osato accept Medicare assignment?
Yes. Dr. Masaharu Osato accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Masaharu Osato commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.