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

John McCarthy, CRNP

Individual provider Family Nurse Practitioner · NPI 1952814634

John McCarthy, CRNP is a Nurse Practitioner in Gaithersburg, Maryland. Qualified in 2013, 13 years ago. Practices with Adventist Physician Services Inc, a 144-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
13
Licensed in
MD
In the registry since
2017
What do these letters mean?
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

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Practice location Address checks out

21034 Woodfield Rd
Gaithersburg, MD 20882-1203
Phone: (301) 509-4150
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence R135272 (MD)

Record details

NPI number1952814634
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNP
Sole proprietorNo
NPI enumeratedNovember 16, 2017
Last updated in NPPESNovember 16, 2017
Mailing address21034 Woodfield Rd, Gaithersburg, MD 20882-1203

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Adventist Physician Services Inc — 144 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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