James Wallace-Mercado, DNP, MSN, FNP-C
NPI 1023744406 · Family Nurse Practitioner · Washington, DC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Wallace-Mercado, DNP, MSN, FNP-C is a Family Nurse Practitioner provider in Washington, DC (NPI 1023744406).
Provider details
- NPI number
- 1023744406
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, MSN, FNP-C
- Sex
- Male
- Sole proprietor
- No
- License
- 76798 (NM)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
- Family Nurse Practitioner363LF0000X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 60 | 33 |
| Levothyroxine Sodium | 40 | 21 |
| Metformin Hcl | 30 | 19 |
| Amlodipine Besylate | 25 | 18 |
| Losartan Potassium | 18 | 11 |
| Omeprazole | 12 | — |
| Famotidine | 11 |
Practice location
Mailing address
Additional practice locations (3)
- 3001 Palm Way Ste D134Austin, TX 78758-7963Phone: (415) 291-0480
- 6677 Richmond HwyAlexandria, VA 22306-6647Phone: (703) 535-5568
- 4540b John Marr DrAnnandale, VA 22003-3308Phone: (703) 941-6757
Registry dates
- Enumerated
- 2022-07-27
- Last updated
- 2026-05-25
- Certified
- 2026-05-25
Frequently asked questions
- What is James Wallace-Mercado's NPI number?
- James Wallace-Mercado's National Provider Identifier (NPI) is 1023744406, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Wallace-Mercado's specialty?
- James Wallace-Mercado is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is James Wallace-Mercado located?
- James Wallace-Mercado's practice location on file with NPPES is 1350 Connecticut Ave Nw Ste 1250, Washington, DC 20036-1728.
- What is James Wallace-Mercado's phone number?
- The practice phone number listed in the NPPES registry for James Wallace-Mercado is (888) 663-6331.
- Does James Wallace-Mercado accept Medicare?
- James Wallace-Mercado is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Wallace-Mercado's NPI active?
- Yes — James Wallace-Mercado's NPI (1023744406) is active in the NPPES registry as of the last update on 2026-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.