Physician Profile

Henry Chang, D.O.

Unclaimed Profile

About Dr. Chang

Henry Chang, D.O. practices internal medicine in West Covina, CA. Henry is a 2007 graduate of Western University of Health Sciences College of Dental Med. Medicare claims data shows Henry provided 841 services to 271 patients. The services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more.

Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.

Specialty

Internal Medicine (Primary)

Credentials & Licensing

CA license20A10516
NPI1740430289
NPI issued09/21/2008

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Medicare information

Accepts Medicare assignmentYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What kind of doctor is Henry Chang?

Henry Chang is an internist in West Covina, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

What is Henry Chang's address?

Henry Chang is listed at 2707 E Valley Blvd Suite 208, West Covina, CA 91792. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Henry Chang?

The number on file is (626) 581-0486. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Henry Chang?

Henry Chang's National Provider Identifier is 1740430289. 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 Henry Chang train?

Henry Chang attended Western University of Health Sciences College of Dental Med, graduating in 2007. This comes from the CMS National Downloadable File.

CMS public data

How much experience does Henry Chang have?

Henry Chang has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.

CMS public data

What procedures does Henry Chang perform?

According to Medicare billing data, Henry 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 Henry Chang's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Henry Chang. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.