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

Aaron Charniak, MD

Individual provider Internal Medicine Physician · NPI 1063827350

Aaron Charniak, MD is a Hospitalist in Rockville, Maryland. Qualified in 2014, 12 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Maryland and New York.

Years since qualifying
12
Licensed in
MD, NY
In the registry since
2014
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

9901 Medical Center Dr
Rockville, MD 20850
Phone: (240) 826-6000
Show map & directions

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

Additional practice locations (1)

  • 75 N Country Rd, Port Jefferson, NY 11777-2119 — (631) 686-2517

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 289945 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence D85926 (MD)

Record details

NPI number1063827350
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 25, 2014
Last updated in NPPESJuly 27, 2018

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations13 on file with Medicare

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