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Edit this profileWhere to find Ryan T. Chao, MD
- Stanford location main office
300 Pasteur Dr, Stanford, CA 94305 - San Jose location
751 S Bascom Ave, San Jose, CA 95128 - Pleasanton location
5555 W Las Positas Blvd, Pleasanton, CA 94588
About Dr. Chao
Ryan T. Chao, MD is a healthcare provider in Stanford, CA specializing in diagnostic radiology. Ryan is also listed as specializing in radiation oncology and vascular & interventional radiology. According to Medicare claims data, Ryan cared for 1,879 Medicare patients across 2,162 services. The services billed most often include x-ray of chest, 1 view, x-ray of chest, 2 views, and ultrasound study of one arm or leg veins with compression and maneuvers. This provider record is associated with NPI 1235471608.
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
- (650) 723-4000
- Email not available
Practice Locations
300 PASTEUR DR
Stanford, CA 94305
751 S Bascom Ave
San Jose, CA 95128
5555 W Las Positas Blvd
Pleasanton, CA 94588
Conditions Evaluated or Diagnosed
Within Diagnostic Radiology 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
Abdomen & Pelvis
- Abdominal Pain
- Appendicitis
- Diverticulitis
- Enlarged prostate
- Gallstones
- Kidney stones
- Liver Lesions
- Ovarian cysts
Bone & Joint
- Ankle Sprain or Fracture
- Bone fractures
- Heel pain
- Hip osteoarthritis
- Osteoporosis
- Rotator cuff tear
- Torn meniscus
Brain & Head
- Brain aneurysm
- Brain tumor
- Concussion in Children
- Migraines
- Sinus infection
- Transient ischemic attack
Brain & nerves
Breast
Chest & Heart
General
Heart & blood vessels
Joint & bone
Liver & digestion
Lungs & breathing
Men's health
Neck & Thyroid
Nerve pain
Pelvic health
Spine
Spine & back
Vascular
Women's health
Procedures & services
Abdominal imaging
Biopsies
Bone Density
Breast Imaging
CT Scan
Digestive & liver
Fluoroscopy
General imaging
Heart & blood vessels
Joint & bone
MRI
Nuclear Medicine
Pelvic imaging
Screening & Prevention
Spine & back
Ultrasound
- Abdominal Ultrasound
- Carotid Ultrasound
- Leg Vein Ultrasound
- Pelvic ultrasound
- Scrotal Ultrasound
- Thyroid ultrasound
- Ultrasound
Urinary & kidney
Women's health
X-Ray
Procedures Most Often Billed to Medicare
2,162 services · 1,879 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Drainage of fluid from abdominal cavity using imaging guidance | Procedure | 49083 |
58 | More often than most peers in Diagnostic Radiology |
| Insertion of central venous tube with port (5 years or older) | Procedure | 36561 |
24 | More often than most peers in Diagnostic Radiology |
| X-ray of chest, 1 view | Imaging | 71045 |
839 | More often than most peers in Diagnostic Radiology |
| X-ray of chest, 2 views | Imaging | 71046 |
123 | As often as other peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
110 | As often as other peers in Diagnostic Radiology |
| X-ray of knee, 1-2 views | Imaging | 73560 |
81 | More often than most peers in Diagnostic Radiology |
| X-ray of abdomen, 1 view | Imaging | 74018 |
70 | More often than most peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis without contrast | Imaging | 74176 |
69 | As often as other peers in Diagnostic Radiology |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
66 | As often as other peers in Diagnostic Radiology |
| X-ray of knee, 3 views | Imaging | 73562 |
60 | More often than most peers in Diagnostic Radiology |
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.
Other radiologists at this location 2
Same specialty, same street address — most likely the same department or group.
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 radiologists in Stanford 6
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Other 7
Other providers in the same specialty who trained at the same institution.
Class of 2013 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Drainage of fluid from abdominal cavity using imaging guidance 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Chao specialize in?
Dr. Chao is a radiologist in Stanford, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
Where is Dr. Chao located?
Dr. Chao is listed at 300 Pasteur Dr, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Chao's phone number?
The number on file is (650) 723-4000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Chao's NPI number?
Dr. Chao's National Provider Identifier is 1235471608. 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 Dr. Chao go to medical school?
Dr. Chao attended Other, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chao been practicing?
Dr. Chao has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Chao do most often?
According to Medicare billing data, Dr. Chao performs procedures including drainage of fluid from abdominal cavity using imaging guidance and insertion of central venous tube with port; reads or performs imaging such as x-ray of chest, 1 view and x-ray of chest, 2 views; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers and use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Chao confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chao. If this is you, claiming it is free.
Guide.md
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