Physician Profile
Unclaimed ProfileAbout CHANG
Ruby Jean Chang, M.D. is a healthcare provider in Austin, TX specialising in pathology. Ruby trained at University of Kentucky College of Medicine, graduating in 2016. Ruby is also listed as specialising in student in an organized health care education program and anatomic & clinical pathology.
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
Common questions
What kind of doctor is Dr. Chang?
Dr. Chang is a pathology in Austin, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PATHOLOGY”.
NPI registry
What is Dr. Chang's address?
Dr. Chang is listed at 3445 EXECUTIVE CENTER DR. STE 250, Austin, TX 78731. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Chang?
The number on file is (512) 579-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Chang?
Dr. Chang's National Provider Identifier is 1396109237. 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 train?
Dr. Chang attended University of Kentucky College of Medicine, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chang have?
Dr. Chang has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Chang perform?
According to Medicare billing data, Dr. 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
Is Dr. Chang's profile verified?
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.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (512) 579-4000
- Email not available
Practice Locations
3445 EXECUTIVE CENTER DR. STE 250
Austin, TX 78731
Procedures Most Often Billed to Medicare
1,233 services · 677 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
465 |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
215 |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
147 |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
116 |
| Evaluation of fine needle aspirate with interpretation and report | Lab test | 88173 |
50 |
| Pathology examination of tissue using a microscope, moderately low complexity | Lab test | 88304 |
37 |
| Cell examination of specimen, concentration technique | Lab test | 88108 |
36 |
| Pathology examination of tissue using a microscope, limited examination | Lab test | 88300 |
33 |
| Pathology examination of specimen during surgery, first tissue block | Lab test | 88331 |
30 |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
28 |
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 pathology specialists at this location 8
Same specialty, same street address — most likely the same department or group.
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 pathology specialists in Austin 6
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at University of Kentucky College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at University of Kentucky College of Medicine 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.