Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Charles Y Chang, MD

Individual provider Urology Physician · NPI 1942436886

Charles Y Chang, MD is an Urology in Concord, California. Qualified in 2008, 18 years ago. Practices with John Muir Physician Network, a 486-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California, Illinois, New York and Washington.

Years since qualifying
18
Licensed in
CA, IL, NY, WA
In the registry since
2009
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2222 E St Ste 250
Concord, CA 94520-2096
Phone: (925) 609-7220
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 199 Mount Eden Pkwy, Bronx, NY 10457-7703 — (718) 992-7669
  • 3124 S 19th St # 320, Tacoma, WA 98405-2433 — (253) 301-5100

Specialties & licences

Urology Physician (primary) Taxonomy 208800000X · Licence C166684 (CA)
Urology Physician Taxonomy 208800000X · Licence MD60462997 (WA)
Urology Physician Taxonomy 208800000X · Licence 125054599 (IL)
Urology Physician Taxonomy 208800000X · Licence 314844 (NY)

Record details

NPI number1942436886
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 5, 2009
Last updated in NPPESDecember 12, 2024
Certification dateDecember 12, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyUROLOGY
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice John Muir Physician Network — 486 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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