Doctor profile · Federal record
Dr. Aaron Hayashi, MD
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Stanford, CA
- NPI 1336104082
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000 - Additional location
-
5555 W Las Positas Blvd
Pleasanton, CA 945884000
(925) 416-3499
fax (408) 842-0854
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- April 9, 2024
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- California #A65175
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336104082. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,558
Distinct HCPCS
10
Medicare allowed
$55,430
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
71045 |
X-ray of chest, 1 view | 497 | 397 | $10 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 136 | 132 | $97 | |
71046 |
X-ray of chest, 2 views | 123 | 119 | $12 | |
74176 |
Ct scan of abdomen and pelvis without contrast | 86 | 84 | $93 | |
71275 |
Ct scan of blood vessels of chest with contrast | 79 | 79 | $96 | |
71250 |
Ct scan of chest without contrast | 67 | 66 | $57 | |
93971 |
Ultrasound study of one arm or leg veins with compression and maneuvers | 60 | 58 | $23 | |
74018 |
X-ray of abdomen, 1 view | 44 | 38 | $10 | |
76770 |
Complete ultrasound scan behind abdominal cavity | 42 | 42 | $39 | |
73560 |
X-ray of knee, 1-2 views | 41 | 37 | $9 |
In context: peer comparison
Among 64 peers in this city , average services per provider: 118. This provider delivers 13× the peer median.Frequently asked questions
What is Dr. Aaron Hayashi's medical specialty?
Dr. Aaron Hayashi practices Diagnostic Radiology Physician in Stanford, CA.
Where does Dr. Aaron Hayashi practice?
Dr. Aaron Hayashi practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Aaron Hayashi's NPI?
Dr. Aaron Hayashi's National Provider Identifier (NPI) is 1336104082, issued by NPPES.
Does Dr. Aaron Hayashi accept Medicare assignment?
Yes. Dr. Aaron Hayashi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aaron Hayashi commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan of abdomen and pelvis with contrast (HCPCS 74177); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.