Physician Profile
Unclaimed ProfileAbout CHAN
Alexander Y Chan, M.D. practices internal medicine in Stockton, CA. According to Medicare claims data, Alexander cared for 1,421 Medicare patients across 2,596 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (209) 689-4607
- Email not available
Practice Locations
4748 SAINT ANDREWS DRIVE
Stockton, CA 95219
Procedures Most Often Billed to Medicare
2,596 services · 1,421 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
1,307 |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Office visit | 99305 |
471 |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | Office visit | 99307 |
451 |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
195 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
68 |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
61 |
| Nursing facility discharge management, more than 30 minutes | Office visit | 99316 |
43 |
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 internal medicines in Stockton 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1996 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Chan specialize in?
Dr. Chan is an internal medicine in Stockton, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Chan located?
Dr. Chan is listed at 4748 SAINT ANDREWS DRIVE, Stockton, CA 95219. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Chan's phone number?
The number on file is (209) 689-4607. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Chan's NPI number?
Dr. Chan's National Provider Identifier is 1386722296. 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. Chan go to medical school?
Dr. Chan attended Other, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chan been practicing?
Dr. Chan has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Chan do most often?
According to Medicare billing data, Dr. Chan 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
Has Dr. Chan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chan. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.