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

Mrs. Mary Patricia Olin, PHYSICIANASSISTANT

Individual provider Medical Physician Assistant · NPI 1841244571

Mrs. Mary Patricia Olin, PHYSICIANASSISTANT is a Physician Assistant in Washington, District of Columbia. Qualified in 1986, 40 years ago. Practices with Medical Faculty Associates, Inc, a 684-clinician group, accepts Medicare assignment and offers telehealth. Licensed in District of Columbia.

Years since qualifying
40
Licensed in
DC
In the registry since
2006
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Practice location Address checks out

2150 Pennsylvania Ave NW
Washington, DC 20037-3201
Phone: (202) 741-2350
Fax: (202) 741-2791
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence DCPA215 (DC)

Record details

NPI number1841244571
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHYSICIANASSISTANT
Sole proprietorNo
NPI enumeratedMay 19, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Medical Faculty Associates, Inc — 684 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 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 patients169
Services billed 647 a service is one billed item, such as a visit, a test or a procedure
Average patient age85

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 $126 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.

  • George Washington Univ Hospital Hospital · Washington, DC · listed as George Washington University Hospital
  • Amedisys Home Health Home health agency · Washington, DC

Colleagues at Medical Faculty Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 684 clinicians in the practice; 12 are shown here.

Other providers in Washington