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

Dr. Andrew Gregg McLanahan Jr., MD

Individual provider Internal Medicine Physician · NPI 1063530921

Dr. Andrew Gregg McLanahan Jr., MD practises Internal Medicine in Rochester, New York. Graduated from University of Washington School of Medicine in 2007, 19 years ago. Practices with University of Rochester, a 962-clinician group and accepts Medicare assignment. Licensed in New York and Wyoming.

Years since qualifying
19
Trained at
University of Washington School of Medicine
Licensed in
NY, WY
In the registry since
2007
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

3101 W Ridge Rd Bldg C
Rochester, NY 14626-3249
Phone: (585) 225-1700
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 257044 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 8736A (WY)
Pediatrics Physician Taxonomy 208000000X · Licence 257044 (NY)
Pediatrics Physician Taxonomy 208000000X · Licence 8736A (WY)

Record details

NPI number1063530921
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2007
Last updated in NPPESJuly 6, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice University Of Rochester — 962 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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.

Removal of skin lesions 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.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients26
Services billed 72 a service is one billed item, such as a visit, a test or a procedure
Average patient age58

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Rochester

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 962 clinicians in the practice; 12 are shown here.

Other providers in Rochester