Physician Profile
Michael Yao-Jen Chang, D.O.
Unclaimed ProfileAbout Dr. Chang
Based in Walnut Creek, CA, Michael Yao-Jen Chang, D.O. is listed in the NPI registry under physical medicine and rehabilitation. Michael is also listed as specializing in pm&r — pain medicine. According to Medicare claims data, Michael cared for 2,794 Medicare patients across 3,844 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
NPI-Registered Specialty
Credentials & Registry Details
Source: NPPES NPI Registry
Contact Information
- (925) 939-8585
- Email not available
Practice Locations
2405 SHADELANDS DR
Walnut Creek, CA 94598
Procedures Most Often Billed to Medicare
3,844 services · 2,794 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
488 |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | Procedure | 64484 |
228 |
| Injection of lower or sacral spine facet joint using imaging guidance, single level | Procedure | 64493 |
123 |
| Injection of lower or sacral spine facet joint using imaging guidance, second level | Procedure | 64494 |
116 |
| Injection of upper or middle spine facet joint using imaging guidance, second level | Procedure | 64491 |
84 |
| Injection of upper or middle spine facet joint using imaging guidance, single level | Procedure | 64490 |
84 |
| Injection of substance into middle or upper spine canal using imaging guidance | Procedure | 62321 |
69 |
| Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance | Procedure | 27096 |
64 |
| Injection into tendon at attachment to bone or muscle | Procedure | 20551 |
23 |
| Mri scan of lower spinal canal without contrast | Imaging | 72148 |
213 |
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.
Other physical medicine and rehabilitations in Walnut Creek 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2002 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Chang specialize in?
Dr. Chang is a physical medicine and rehabilitation in Walnut Creek, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PHYSICAL MEDICINE AND REHABILITATION”.
NPI registry
Where is Dr. Chang located?
Dr. Chang is listed at 2405 SHADELANDS DR, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Chang's phone number?
The number on file is (925) 939-8585. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Chang's NPI number?
Dr. Chang's National Provider Identifier is 1205934262. 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. Chang go to medical school?
Dr. Chang attended Other, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chang been practicing?
Dr. Chang has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Chang do most often?
According to Medicare billing data, Dr. Chang performs procedures including injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level, injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level and injection of lower or sacral spine facet joint using imaging guidance, single level; reads or performs imaging such as mri scan of lower spinal canal without contrast and x-ray of lower and sacral spine, minimum of 4 views; provides treatments such as needle measurement of electrical activity in arm or leg muscles, complete study and nerve conduction, 9-10 studies, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chang. 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.