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

Ada Allen, CFNP

Individual provider Family Nurse Practitioner · NPI 1740230143

Ada Allen, CFNP is a Nurse Practitioner in Gretna, Virginia. Qualified in 2001, 25 years ago. Practices with Medstar Medical Group - Southern Maryland LLC, a 237-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Connecticut, Maryland, Maine and New Hampshire and 2 more.

Years since qualifying
25
Licensed in
CT, MD, ME, NH, NY, VA
In the registry since
2006
Specialties on file
6

Practice location Address checks out

305 N Main St
Gretna, VA 24557-4176
Phone: (434) 656-2224
Fax: (434) 656-3988
Show map & directions

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

Additional practice locations (2)

  • 24035 Three Notch Rd, Hollywood, MD 20636-4871 — (301) 373-7900
  • 423 Fortress Blvd, Morgantown, WV 26508-1351 — (304) 225-2500

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 0024166917 (VA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 356522 (NY)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence CNP211572 (ME)
Nurse Practitioner Taxonomy 363L00000X · Licence R127634 (MD)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 087140-23 (NH)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 12.014109 (CT)

Record details

NPI number1740230143
Entity typeIndividual (Type 1)
GenderFemale
Credentials CFNP
Sole proprietorNo
NPI enumeratedMay 10, 2006
Last updated in NPPESMarch 5, 2026
Certification dateMarch 5, 2026
Mailing address305 N Main St, Gretna, VA 24557-4176

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Medstar Medical Group - Southern Maryland Llc — 237 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Gretna