Physician Profile
Masaharu Osato, M.D.
Unclaimed ProfileAbout Dr. Osato
Masaharu Osato, M.D. practices gastroenterology in Torrance, CA. Masaharu is a 1983 graduate of Loma Linda University School of Medicine. According to Medicare claims data, Masaharu cared for 2,757 Medicare patients across 9,161 services. The services billed most often include injection, denosumab, 1 mg, insertion of needle into vein for collection of blood sample, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. The provider's National Provider Identifier (NPI) is 1265470280.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (310) 534-8200
- Email not available
Practice Locations
2860 SEPULVEDA BLVD
Torrance, CA 90505
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
9,161 services · 2,757 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
559 | More than most peers in Gastroenterology |
| Complete ultrasound scan of abdomen | Imaging | 76700 |
95 | More often than most peers in Gastroenterology |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
30 | Too few peers to compare |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
87 | More often than most peers in Gastroenterology |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
42 | More often than most peers in Gastroenterology |
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
41 | Too few peers to compare |
| Injection, denosumab, 1 mg | Drug given | J0897 |
4,920 | More than most peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
477 | More than most peers in Gastroenterology |
| Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | Office visit | 99211 |
434 | More than most peers in Gastroenterology |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
434 | More than most peers in Gastroenterology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other gastroenterologists in Torrance 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Loma Linda University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at Loma Linda University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 7
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Masaharu Osato?
Masaharu Osato is a gastroenterologist in Torrance, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
What is Masaharu Osato's address?
Masaharu Osato is listed at 2860 Sepulveda Blvd, Torrance, CA 90505. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Masaharu Osato?
The number on file is (310) 534-8200. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Masaharu Osato's NPI number?
Masaharu Osato's National Provider Identifier is 1265470280. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Masaharu Osato train?
Masaharu Osato attended Loma Linda University School of Medicine, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Masaharu Osato been practicing?
Masaharu Osato has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What procedures does Masaharu Osato perform?
According to Medicare billing data, Masaharu Osato performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as complete ultrasound scan of abdomen and ultrasound scan of head and neck soft tissue; provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Masaharu Osato confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Masaharu Osato. If this is you, claiming it is free.
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