NPPES file of Aug 9, 2026

Katherine A. Horner, CRNP

Registered Nurse · Frederick, MD

Katherine A. Horner, CRNP is a registered nurse with a practice address in Frederick, Maryland, and NPI 1144205071, issued on Dec 14, 2005. Check the license (Maryland R106852, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1144205071
Name
Katherine A. Horner
Credential
CRNP
Primary taxonomy
Registered Nurse 163W00000X
License number
R106852 MD
Self-reported in NPPES; status is on the state search
Practice location
61 Thomas Johnson Dr, Frederick, MD 21702
Phone
(301) 663-6171
Enumerated
Dec 14, 2005
Record last updated
Oct 17, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(301) 695-4469
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.
Download card Updates feed

8 nearest registered nurse records → All 2,453 in Maryland → Look up another NPI →

Also registered at 61 Thomas Johnson Dr

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

  1. Selamawit AbegazObstetrics & Gynecology Nurse Practitioner1619794047
  2. Taro Adachi, MDGynecology Physician1376638213
  3. Gerardo Araiza, MDObstetrics & Gynecology Physician1023091709
  4. Leonard Bienkowski, MDObstetrics & Gynecology Physician1205819984
  5. Kimberly Capone, CRNPObstetrics & Gynecology Nurse Practitioner1174508063
  6. Allison Groff, M.D.Obstetrics & Gynecology Physician1346568557

Verify Katherine A. Horner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license R106852    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 Maryland 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Katherine A. Horner among 2,453 registered nurse records in Maryland

Katherine A. Horner, CRNP is one of 2,453 registered nurse records with a practice address in Maryland. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, over 99% newer
  • In a Medicare fileNo · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2011 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Nurse providers in Maryland

There are 2,453 registered nurse records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,453 in Maryland → Every provider in Frederick → Registered Nurse nationwide →

The 8 registered nurse records with the nearest ZIP codes

  1. Denise Bovenzi, RN CCRCFort Detrick, MD 217021205020856
  2. Laura Brosch, R.N.Fort Detrick, MD 217021972654721
  3. Janice Condrey, RN, BSNFrederick, MD 217021568681088
  4. Melanie Frank, RNFrederick, MD 217021639359607
  5. Janet Harris, PH.D. R.N.Fort Detrick, MD 217021174688782
  6. Keith Holliday, R.N.Frederick, MD 217021821130378
  7. Lawrence Korman, R.N., BSN, CCRPFort Detrick, MD 217021891989406
  8. Sallyann McCarthy, RNFrederick, MD 217021841283579

Common questions

What is Katherine A. Horner, CRNP's NPI number?

Katherine A. Horner, CRNP's National Provider Identifier (NPI) is 1144205071, issued on Dec 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Katherine A. Horner, CRNP located?

The NPPES record lists a practice address at 61 Thomas Johnson Dr, Frederick, MD, 21702. Phone: (301) 663-6171. Providers update this record themselves, so call before visiting.

How can I verify Katherine A. Horner, CRNP's license?

NPPES lists Maryland license number R106852, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity 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. 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.