NPPES file of Aug 9, 2026

Nancy Fowler Clark, NP

Nurse Practitioner · Washington, DC

Nancy Fowler Clark, NP is a nurse practitioner with a practice address in Washington, District of Columbia, and NPI 1144263229, issued on Jun 14, 2006. Check the license (District of Columbia RN62921, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144263229
Name
Nancy Fowler Clark
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
RN62921 DC
Self-reported in NPPES; status is on the state search
Practice location
110 Irving St NW, Washington, DC 20010
Phone
(202) 877-0788
Enumerated
Jun 14, 2006
Record last updated
Jun 8, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicaid IDs
036601700 DC
407365700 MD
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 110 Irving St NW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Margarita Abbey, NPNurse Practitioner1841245487
  2. Lauren Abbott, M.D.Emergency Medicine Physician1356576383
  3. Taha Abdalla, MDNeonatal-Perinatal Medicine Physician1225016587
  4. Mouin Abdallah, MDCardiovascular Disease Physician1063498780
  5. Waseem Abdallah, M.D.Psychiatry Physician1265961452
  6. Samer Abdel Al, MDOrthopaedic Surgery Physician1558778548

Verify Nancy Fowler Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
    Search for license RN62921    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the District of Columbia license search

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97% fewer Medicare Part D claims than the average nurse practitioner in 2024

30 Medicare Part D claims for 21 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Nancy Clark30
  2. Specialty average1,109

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.

Industry payments in 2024: $190.87

7 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nancy Clark$190.87
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Nurse Practitioner providers in District of Columbia

There are 244 nurse practitioner records in District of Columbia.

All 244 in District of Columbia → Every provider in Washington →

Other nurse practitioner records in District of Columbia

  1. Margarita Abbey, NPWashington, DC1841245487
  2. Safia Abdillahi, ARNPWashington, DC1881788966
  3. Mary Alder, RN , BSN, NP, DNSCWashington, DC1548450463
  4. Rachael AlexanderWashington, DC1619677259
  5. Maria Alleyne, N.PWashington, DC1598974974
  6. Julie ArchibaldWashington, DC1972046712
  7. Daramola AyoadeWashington, DC1922587120
  8. Lori Bagla, NPWashington, DC1083896617
  9. Sally Balkovic, NPWashington, DC1861039976
  10. Christina Barra, NPWashington, DC1972029148

Common questions

What is Nancy Fowler Clark, NP's NPI number?

Nancy Fowler Clark, NP's National Provider Identifier (NPI) is 1144263229, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Fowler Clark, NP located?

The NPPES record lists a practice address at 110 Irving St NW, Washington, DC, 20010. Phone: (202) 877-0788. Providers update this record themselves, so call before visiting.

How can I verify Nancy Fowler Clark, NP's license?

NPPES lists District of Columbia license number RN62921, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.

How much does Nancy Fowler Clark, NP prescribe under Medicare Part D?

In 2024, Nancy Fowler Clark, NP had 30 Medicare Part D claims for 21 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.