NPPES file of Aug 9, 2026

Katherine Mary Kemper-Dean, CRNP

Adult Health Nurse Practitioner · Olney, MD

Katherine Mary Kemper-Dean, CRNP is an adult health nurse practitioner with a practice address in Olney, Maryland, and NPI 1376863837, issued on Jun 8, 2010. Check the license (Maryland R089866, as entered in NPPES) with the Maryland 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
1376863837
Name
Katherine Mary Kemper-Dean
Credential
CRNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
R089866 MD
Self-reported in NPPES; status is on the state search
Practice location
18121 Georgia Ave, Olney, MD 20832
Phone
(301) 933-5050
Enumerated
Jun 8, 2010
Record last updated
Jun 8, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(301) 949-3262
Medicare enrollment
Enrolled (PECOS I20101213000183); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 18121 Georgia Ave

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

  1. Monica Chandran, DMD, MSProsthodontics1477819365
  2. Theodore Dougherty, D.D.S.Dentist1760767958
  3. Jeffrey Hirsch, DDSDentist1003936345

Verify Katherine Mary Kemper-Dean 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 R089866
    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

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85% more Medicare Part D claims than the average adult health nurse practitioner in 2024

2,362 Medicare Part D claims for 295 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Katherine Kemper-Dean2,362
  2. Specialty average1,280

Most prescribed

  1. Atorvastatin Calcium195 claims
  2. Amlodipine Besylate147 claims
  3. Levothyroxine Sodium86 claims
  4. Rosuvastatin Calcium74 claims
  5. Losartan Potassium72 claims
  6. Synthroid51 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.

Industry payments in 2024: $590.69

30 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine Kemper-Dean$590.69
  2. Specialty average$946.40

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

Bills Medicare through one group practice

  1. Privia Care Center LLCRockville, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katherine Mary Kemper-Dean among 902 adult health nurse practitioner records in Maryland

Katherine Mary Kemper-Dean, CRNP is one of 902 adult health nurse practitioner records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 42% of them.

  • NPI issued2010 · 42% of these records are older, 55% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2009 · median 2014 among the 386 with a school on file
  • Record last updated2010 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Maryland

There are 902 adult health nurse practitioner records in Maryland.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Margaret Carpino, CRNPOlney, MD 208321811164759
  2. Dina Rosenthal, CRNPOlney, MD 208321124470224
  3. Jaimie PollockBoyds, MD 208411942938402
  4. Amy Hillsman, CRNPBethesda, MD 208171457626574
  5. Mariam Kashani, CRNPBethesda, MD 208171245314871
  6. Judith Potter, C.R.N.P.Bethesda, MD 208171154543478
  7. Barbara Squiller, RN, CRNPBethesda, MD 208171053556266
  8. Kelly Goodman, NPBethesda, MD 208161639396914

Common questions

What is Katherine Mary Kemper-Dean, CRNP's NPI number?

Katherine Mary Kemper-Dean, CRNP's National Provider Identifier (NPI) is 1376863837, issued on Jun 8, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Mary Kemper-Dean, CRNP located?

The NPPES record lists a practice address at 18121 Georgia Ave, Olney, MD, 20832. Phone: (301) 933-5050. Providers update this record themselves, so call before visiting.

How can I verify Katherine Mary Kemper-Dean, CRNP's license?

NPPES lists Maryland license number R089866, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine Mary Kemper-Dean, CRNP prescribe under Medicare Part D?

In 2024, Katherine Mary Kemper-Dean, CRNP had 2,362 Medicare Part D claims for 295 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.