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

Dr. Alexander Richard Chang, MD

Individual provider Internal Medicine Physician · NPI 1407016967

Dr. Alexander Richard Chang, MD is a Nephrology in Danville, Pennsylvania. Graduated from Ohio State University College of Medicine in 2007, 19 years ago. Practices with Geisinger Clinic, a 3,413-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Pennsylvania.

Years since qualifying
19
Trained at
Ohio State University College of Medicine
Licensed in
IL, PA
In the registry since
2008
Specialties on file
2
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

100 N Academy Ave
Danville, PA 17822-0020
Phone: (570) 271-6393
Fax: (570) 271-5623
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence MD449683 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125053196 (IL)

Record details

NPI number1407016967
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 9, 2008
Last updated in NPPESAugust 20, 2020
Certification dateAugust 20, 2020

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Geisinger Clinic — 3413 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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