Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Lan Chang, MD

Individual provider Internal Medicine Physician · NPI 1871792002

Lan Chang, MD practises Ophthalmology in Kensington, Maryland. Graduated from University of Michigan Medical School in 2007, 19 years ago. Practices with Kaiser Foundation Health Plan of the Mid Atlantic States, Inc, a 1,934-clinician group and accepts Medicare assignment. Licensed in New Mexico and Pennsylvania.

Years since qualifying
19
Trained at
University of Michigan Medical School
Licensed in
NM, PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

10810 Connecticut Ave
Kensington, MD 20895-2138
Phone: (301) 972-7100
Show map & directions

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

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence MD2012-0458 (NM)
Internal Medicine Physician Taxonomy 207R00000X · Licence MT191020 (PA)

Record details

NPI number1871792002
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2007
Last updated in NPPESNovember 7, 2023
Certification dateNovember 7, 2023

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2007 (19 years in practice)
Group practice Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc — 1934 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Cataract surgery 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Colleagues at Kaiser Foundation Health Plan of the Mid Atlantic States, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1934 clinicians in the practice; 12 are shown here.

Other providers in Kensington