James Gavin Wallace-Mercado, DNP, MSN, FNP-C
Family Nurse Practitioner · Washington, DC
James Gavin Wallace-Mercado, DNP, MSN, FNP-C is a family nurse practitioner with a practice address in Washington, District of Columbia, and NPI 1023744406, issued on Jul 27, 2022. Check the license (District of Columbia NP200003078, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Gavin Wallace-Mercado
- Credential
- DNP, MSN, FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- NP200003078 DC
3-002726 AL
APRN11033095 FL
GAA-NP004634 GA
AC008761 MD
and 5 more
Self-reported in NPPES; status is on the state search - Practice location
- 1350 Connecticut Ave NW Ste 1250, Washington, DC 20036
- Phone
- (888) 663-6331
- Enumerated
- Jul 27, 2022
- Record last updated
- May 25, 2026
- Fax
- (415) 252-7176
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 682 in District of Columbia → Look up another NPI →
Also registered at 1350 Connecticut Ave NW Ste 1250
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennifer Bragaw, FNP-BCFamily Nurse Practitioner1366997603
- Vanessa Burnham, FNP-BCNurse Practitioner1104594720
Verify James Gavin Wallace-Mercado in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
Search for license NP200003078Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average family nurse practitioner in 2024
402 Medicare Part D claims for 75 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Atorvastatin Calcium60 claims
- Levothyroxine Sodium40 claims
- Metformin Hcl30 claims
- Amlodipine Besylate25 claims
- Losartan Potassium18 claims
- Omeprazole12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
James Gavin Wallace-Mercado among 682 family nurse practitioner records in District of Columbia
James Gavin Wallace-Mercado, DNP, MSN, FNP-C is one of 682 family nurse practitioner records with a practice address in District of Columbia. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 79% of them.
- NPI issued2022 · 79% of these records are older, 15% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 46% of these records are
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
675 family nurse practitioner records list a practice address in Washington
They are 675 of the 45,857 NPPES records with a practice address in Washington, and 682 family nurse practitioner records in District of Columbia.
All 682 in District of Columbia → Every provider in Washington → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Jennifer Bragaw, FNP-BCWashington, DC 200361366997603
- Kari FairclothWashington, DC 200361962880146
- Frida FruWashington, DC 200361447511167
- Elizabeth FuderichWashington, DC 200361841685823
- Svetlana Istomina, FNPWashington, DC 200361265851745
- Mary JamisonWashington, DC 200361821415472
- Khalilah Jefferson, CRNPWashington, DC 200361609207778
- Karen Kwok, NP MSNWashington, DC 200361336276328
Common questions
What is James Gavin Wallace-Mercado, DNP, MSN, FNP-C's NPI number?
James Gavin Wallace-Mercado, DNP, MSN, FNP-C's National Provider Identifier (NPI) is 1023744406, issued on Jul 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is James Gavin Wallace-Mercado, DNP, MSN, FNP-C located?
The NPPES record lists a practice address at 1350 Connecticut Ave NW Ste 1250, Washington, DC, 20036. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.
How can I verify James Gavin Wallace-Mercado, DNP, MSN, FNP-C's license?
NPPES lists District of Columbia license number NP200003078, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
How much does James Gavin Wallace-Mercado, DNP, MSN, FNP-C prescribe under Medicare Part D?
In 2024, James Gavin Wallace-Mercado, DNP, MSN, FNP-C had 402 Medicare Part D claims for 75 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.