Are you Dr. Chang? This profile is yours to edit: update your address, phone, photo and services.

Edit this profile

Physician Profile

Howard Y. Chang, MD

Is this you? Edit this profile

At a glance

About Dr. Chang

Based in Oakland, CA, Howard Y. Chang, MD is listed in the NPI registry under internal medicine. Howard graduated from Northwestern University Feinberg Medical School in 1999. NPI 1700845336 identifies this record in the national registry.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Internal Medicine (Primary)

Credentials & Licensing

CA · Physician and Surgeon AMedical Board of California
No. 100145CurrentExpires Sep 2028Since 2007
NPINational Provider Identifier
1700845336Issued 2006

Snapshot · verify with the 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 does Dr. Chang specialize in?

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

NPI registry

Where is Dr. Chang located?

Dr. Chang is listed at 275 W Macarthur Blvd, Oakland, CA 94611. 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 (510) 752-1000. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Chang's NPI number?

Dr. Chang's National Provider Identifier is 1700845336. 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 Northwestern University Feinberg Medical School, graduating in 1999. This comes from the CMS National Downloadable File.

CMS public data

How long has Dr. Chang been practicing?

Dr. Chang has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.

CMS public data

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.

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.

A GigHz company · Founder: Pouyan Golshani, MD