Physician Profile
Richard M. Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Richard M. Chang, M.D. is a healthcare provider in Walnut Creek, CA specializing in undefined physician type (specify). Richard is also listed as specializing in internal medicine, cardiovascular disease, and interventional cardiology. According to Medicare claims data, Richard cared for 3,890 Medicare patients across 5,983 services. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. This provider record is associated with NPI 1275669954.
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
- (925) 937-1770
- Email not available
Practice Locations
1450 TREAT BLVD SUITE 220B
Walnut Creek, CA 94597
Procedures Most Often Billed to Medicare
5,983 services · 3,890 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of pacemaker and upper and lower heart chamber electrode | Procedure | 33208 |
42 | More than most peers in Undefined Physician Type (Specify) |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
858 | More often than most peers in Undefined Physician Type (Specify) |
| Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days | Treatment | 93297 |
823 | More than most peers in Undefined Physician Type (Specify) |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
507 | More often than most peers in Undefined Physician Type (Specify) |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | Treatment | 93296 |
409 | More than most peers in Undefined Physician Type (Specify) |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
330 | More than most peers in Undefined Physician Type (Specify) |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
238 | More than most peers in Undefined Physician Type (Specify) |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
195 | More often than most peers in Undefined Physician Type (Specify) |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
181 | More often than most peers in Undefined Physician Type (Specify) |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | Treatment | 93298 |
149 | As often as other peers in Undefined Physician Type (Specify) |
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.
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.
Common questions
What is Richard M. Chang's specialty?
Richard M. Chang is an undefined physician type (specify) in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Richard M. Chang?
Richard M. Chang is listed at 1450 Treat Blvd Suite 220B, Walnut Creek, CA 94597. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Richard M. Chang?
The number on file is (925) 937-1770. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Richard M. Chang's NPI number?
Richard M. Chang's National Provider Identifier is 1275669954. 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
What is Richard M. Chang's education?
Richard M. Chang attended Other, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Richard M. Chang been practicing?
Richard M. Chang has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What is Richard M. Chang known for?
According to Medicare billing data, Richard M. Chang performs procedures including insertion of pacemaker and upper and lower heart chamber electrode; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Richard M. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Richard M. Chang. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.