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

Dr. James Gavin Wallace-Mercado, DNP, MSN, FNP-C

Individual provider Family Nurse Practitioner · NPI 1023744406

Dr. James Gavin Wallace-Mercado, DNP, MSN, FNP-C is a Family Nurse Practitioner in Washington, District of Columbia. Works from 4 locations. Licensed in Alabama, District of Columbia, Florida and Georgia and 6 more.

Licensed in
AL, DC, FL, GA, MD, MS
In the registry since
2022
Specialties on file
10
What do these letters mean?
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

Practice location Address checks out

1350 Connecticut Ave NW Ste 1250
Washington, DC 20036-1728
Phone: (888) 663-6331
Fax: (415) 252-7176
Show map & directions

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

Additional practice locations (3)

  • 3001 Palm Way Ste D134, Austin, TX 78758-7963 — (415) 291-0480
  • 6677 Richmond Hwy, Alexandria, VA 22306-6647 — (703) 535-5568
  • 4540b John Marr Dr, Annandale, VA 22003-3308 — (703) 941-6757

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence NP200003078 (DC)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 76798 (NM)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 0024185745 (VA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 908120 (MS)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 3-002726 (AL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence APRN11033095 (FL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence GAA-NP004634 (GA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence AC008761 (MD)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 358275 (NY)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 1168661 (TX)

Record details

NPI number1023744406
Entity typeIndividual (Type 1)
GenderMale
Credentials DNP , MSN , FNP-C
Sole proprietorNo
NPI enumeratedJuly 27, 2022
Last updated in NPPESMay 25, 2026
Certification dateMay 25, 2026

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