Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Mark A Castillo, PA-C

Individual provider Physician Assistant · NPI 1548604408

Mr. Mark A Castillo, PA-C is a Physician Assistant in Washington, District of Columbia. Qualified in 2012, 14 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
14
Licensed in
PA
In the registry since
2013
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

1310 Southern Ave SE
Washington, DC 20032-4623
Phone: (202) 741-3296
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence MA056070 (PA)

Record details

NPI number1548604408
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedApril 23, 2013
Last updated in NPPESOctober 15, 2021
Certification dateOctober 15, 2021

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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