NPPES file of Aug 9, 2026

Kelsey O, Pappas, MD

Family Medicine Physician · Elizabethtown, PA

Kelsey O, Pappas, MD is a family medicine physician with a practice address in Elizabethtown, Pennsylvania, and NPI 1821435041, issued on May 29, 2013. Check the license (Pennsylvania MD466134, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1821435041
Name
Kelsey O, Pappas
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD466134 PA
Self-reported in NPPES; status is on the state search
Practice location
99 Masonic Dr, Elizabethtown, PA 17022
Phone
(717) 689-4243
Enumerated
May 29, 2013
Record last updated
Apr 8, 2025
Fax
(717) 689-1950
Medicare enrollment
Enrolled (PECOS I20190218000429); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 2013
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 99 Masonic Dr

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

  1. Michael Fox, PHARMDPharmacist1881291961
  2. Adam Gockley, PHARMDGeriatric Pharmacist1861084717
  3. Erica Jones, CRNP- FAMILY HEALTHNurse Practitioner1437747326

Verify Kelsey O, Pappas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD466134
    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
Open the Pennsylvania 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.

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2.6 times the Medicare Part D claims of the average family medicine physician in 2024

9,129 Medicare Part D claims for 586 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 248 claims were for opioids.

  1. Kelsey Pappas9,129
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium440 claims
  2. Levothyroxine Sodium353 claims
  3. Lisinopril337 claims
  4. Amlodipine Besylate265 claims
  5. Metoprolol Succinate262 claims
  6. Omeprazole243 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.

Bills Medicare through one group practice

  1. Lancaster General Medical GroupMount Joy, PA

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

Kelsey O, Pappas among 7,483 family medicine physician records in Pennsylvania

Kelsey O, Pappas, MD is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 66% of them.

  • NPI issued2013 · 66% of these records are older, 31% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2013 · median 2005 among the 4,529 with a school on file
  • Record last updated2025 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

37 family medicine physician records list a practice address in Elizabethtown

They are 37 of the 302 NPPES records with a practice address in Elizabethtown, and 7,483 family medicine physician records in Pennsylvania.

The 8 family medicine physician records with the nearest ZIP codes

  1. Gerald Baer, M.D.Elizabethtown, PA 170221255310637
  2. Christopher Brabazon, DOElizabethtown, PA 170221942260435
  3. Paul Brubaker, M.D.Elizabethtown, PA 170221457330722
  4. Scott Conley, M.D.Elizabethtown, PA 170221164401436
  5. Glenda Cook, M.D.Elizabethtown, PA 170221275503286
  6. Dwight Eichelberger, M.D.Elizabethtown, PA 170221336128719
  7. Eric Esch, M.D.Elizabethtown, PA 170221245219625
  8. Robin Gish, M.D.Elizabethtown, PA 170221992785448

Common questions

What is Kelsey O, Pappas, MD's NPI number?

Kelsey O, Pappas, MD's National Provider Identifier (NPI) is 1821435041, issued on May 29, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Kelsey O, Pappas, MD located?

The NPPES record lists a practice address at 99 Masonic Dr, Elizabethtown, PA, 17022. Phone: (717) 689-4243. Providers update this record themselves, so call before visiting.

How can I verify Kelsey O, Pappas, MD's license?

NPPES lists Pennsylvania license number MD466134, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kelsey O, Pappas, MD prescribe under Medicare Part D?

In 2024, Kelsey O, Pappas, MD had 9,129 Medicare Part D claims for 586 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.