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

Kathleen M Nilles, MD

Individual provider Internal Medicine Physician · NPI 1396903928

Kathleen M Nilles, MD is an Internal Medicine in Washington, District of Columbia. Graduated from University of Pittsburgh School of Medicine in 2008, 18 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in District of Columbia and Illinois.

Years since qualifying
18
Trained at
University of Pittsburgh School of Medicine
Licensed in
DC, IL
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

3800 Reservoir Rd NW
Washington, DC 20007
Phone: (202) 444-3700
Fax: (877) 680-8192
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 251 E Huron St, Chicago, IL 60611-2908 — (312) 926-5924
  • 251 E Huron St, Chicago, IL 60611-2908 — (312) 926-5924

Specialties & licences

Transplant Hepatology Physician (primary) Taxonomy 207RT0003X · Licence MD047513 (DC)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036128000 (IL)

Record details

NPI number1396903928
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 30, 2008
Last updated in NPPESSeptember 4, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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