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

Aashish Dewan, MD

Individual provider Family Medicine Physician · NPI 1619506979

Aashish Dewan, MD is registered under Family Practice in Olney, Maryland. Graduated from University of Toledo College of Medicine in 2020, 6 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in District of Columbia, Florida, Maryland and Virginia.

Years since qualifying
6
Trained at
University of Toledo College of Medicine
Licensed in
DC, FL, MD, VA
In the registry since
2020
Specialties on file
5
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

18109 Prince Philip Dr Ste B200
Olney, MD 20832-1591
Phone: (240) 883-9791
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (3)

  • 1600 S Andrews Ave, Fort Lauderdale, FL 33316-2510 — (301) 832-7858
  • 400 W 7th St, Frederick, MD 21701-4506 — (240) 566-3300
  • 12220 Rockville Pike, Rockville, MD 20852-1608 — (855) 910-3278

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence D98444 (MD)
Family Medicine Physician Taxonomy 207Q00000X · Licence MD600001864 (DC)
Family Medicine Physician Taxonomy 207Q00000X · Licence 156122 (FL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Family Medicine Physician Taxonomy 207Q00000X · Licence 0101279871 (VA)

Record details

NPI number1619506979
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 7, 2020
Last updated in NPPESApril 11, 2025
Certification dateApril 11, 2025

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF TOLEDO COLLEGE OF MEDICINE
Graduated 2020 (6 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 locations13 on file with Medicare

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 patients571
Services billed 1,404 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $60 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Frederick Health Hospital Hospital · Frederick, MD · listed as Frederick Health Hospital Inc
  • Medstar Montgomery Medical Center Hospital · Olney, MD
  • Medstar Health Home Care Home health agency · Hyattsville, MD

Colleagues at Medstar Medical Group II LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3717 clinicians in the practice; 12 are shown here.

Other providers in Olney