Registry data as of Aug 27, 2026

Catherine Holohan, PNP-AC

Pediatric Nurse Practitioner · Washington, DC

Catherine Holohan, PNP-AC is a pediatric nurse practitioner with a practice address in Washington, District of Columbia, and NPI 1407150584, issued on Jan 4, 2011. Check the license (District of Columbia RN1013540, 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, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1407150584
Name
Catherine Holohan
Credential
PNP-AC
Primary taxonomy
Pediatric Nurse Practitioner 363LP0200X
License number
RN1013540 DC
Self-reported in NPPES; status is on the state search
Practice location
111 Michigan Ave NW, Washington, DC 20010
Phone
(703) 593-1437
Enumerated
Jan 4, 2011
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 111 Michigan Ave NW

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

  1. Joseph AbbahPharmacist1790313948
  2. Emily Abbey, CRNPCritical Care Pediatric Nurse Practitioner1710434006
  3. Claude Abdallah, MDPediatric Anesthesiology Physician1053401851
  4. Islam Abdelmoeti, MBBCHDiagnostic Radiology Physician1588348155
  5. Sarah Abi Raad, MDPediatric Cardiology Physician1528798287
  6. Hassan Aboughalia, MBBCH, MDDiagnostic Radiology Physician1710473954

Verify Catherine Holohan 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 RN1013540
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Industry payments in 2024: $20.93

1 payment, mostly food and beverage; the largest payer was Abbott Laboratories. The 7,169 providers of this specialty with any payment received $330.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Catherine Holohan$20.93
  2. Specialty average$330.95

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

Pediatric Nurse Practitioner providers in District of Columbia

There are 183 pediatric nurse practitioner records in District of Columbia.

Other pediatric nurse practitioner records in District of Columbia

  1. Olivia Ackerman, APRNWashington, DC1154759090
  2. Janice Agazio, PHD, CRNP, RNWashington, DC1699391938
  3. Sameeya Ahmed-Winston, CPNPWashington, DC1578759015
  4. Julie Albert, N.P.Washington, DC1205123379
  5. Lauren Archer, CPNP- PCWashington, DC1700651536
  6. Lauren Arrigoni, MS, BSN, RN, CPNPWashington, DC1730636580
  7. Erica Auerbach, RN, CPNPWashington, DC1295884401
  8. Jennie Austin, RN, MSN, CPNPWashington, DC1619060720
  9. Rebecca Babb, CPNPWashington, DC1063768802
  10. Jennifer Baez, CPNPWashington Dc, DC1710027784

Common questions

What is Catherine Holohan, PNP-AC's NPI number?

Catherine Holohan, PNP-AC's National Provider Identifier (NPI) is 1407150584, issued on Jan 4, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Holohan, PNP-AC located?

The NPPES record lists a practice address at 111 Michigan Ave NW, Washington, DC, 20010. Phone: (703) 593-1437. Providers update this record themselves, so call before visiting.

How can I verify Catherine Holohan, PNP-AC's license?

NPPES lists District of Columbia license number RN1013540, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.