Physician Profile
Chao Sun, M.D. practices general practice in Pleasanton, CA. Chao is also listed as specializing in occupational medicine. According to Medicare claims data, Chao cared for 147 Medicare patients across 1,838 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
5700 STONERIDGE MALL RD STE 100
Pleasanton, CA 94588
Within General Practice generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Most searched procedures
1,838 services · 147 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Osteopathic manipulative treatment, 9-10 body regions | Treatment | 98929 |
568 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,257 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Sun is a general practice in Pleasanton, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GENERAL PRACTICE”.
NPI registry
Dr. Sun is listed at 5700 STONERIDGE MALL RD STE 100, Pleasanton, CA 94588. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (925) 915-9530. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Sun's National Provider Identifier is 1013118884. 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
Dr. Sun attended Other, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
Dr. Sun has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Sun provides treatments such as osteopathic manipulative treatment, 9-10 body regions, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sun. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.