Provider Profile
Woody Chang practices geriatric medicine in Sunnyvale, CA. Woody is a 2014 graduate of Stanford University School of Medicine. Woody is also listed as specializing in student in an organized health care education program. Medicare claims data shows Woody provided 911 services to 272 patients. The services billed most often include subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes, and initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more. The provider's National Provider Identifier (NPI) is 1295153187.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
301 OLD SAN FRANCISCO RD
Sunnyvale, CA 94086
Within Geriatric Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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911 services · 272 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
657 | More often than most peers in Geriatric Medicine |
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Office visit | 99310 |
109 | More often than most peers in Geriatric Medicine |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
85 | More often than most peers in Geriatric Medicine |
| Nursing facility discharge management, more than 30 minutes | Office visit | 99316 |
60 | More often than most peers in Geriatric Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Woody Chang is a geriatrician in Sunnyvale, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Geriatric Medicine”.
NPI registry
Woody Chang is listed at 301 Old San Francisco Rd, Sunnyvale, CA 94086. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (408) 730-6250. Contact the office directly to confirm availability and scheduling.
NPI registry
Woody Chang's National Provider Identifier is 1295153187. 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
Woody Chang attended Stanford University School of Medicine, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
Woody Chang has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Woody Chang the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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 Woody Chang. If this is you, claiming it is free.
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