NPPES file of Aug 9, 2026

Margaret Holly Libonati, MD

Family Medicine Physician · Lancaster, PA

Margaret Holly Libonati, MD is a family medicine physician with a practice address in Lancaster, Pennsylvania, and NPI 1134702913, issued on Apr 30, 2021. Check the license (Pennsylvania MD490699, 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
1134702913
Name
Margaret Holly Libonati
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD490699 PA
Self-reported in NPPES; status is on the state search
Practice location
802 New Holland Ave Ste 100, Lancaster, PA 17602
Phone
(717) 544-1427
Enumerated
Apr 30, 2021
Record last updated
Dec 29, 2025
Fax
(717) 544-1427
Medicare enrollment
Enrolled (PECOS I20251224001667); accepts Medicare assignment
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 802 New Holland Ave Ste 100

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

  1. Whitney Bakken, MDPsychiatry Physician1275738890
  2. Tyrone Bristol, M.D.Psychiatry Physician1437150596
  3. Tanya Freiberg, CRNPPsychiatric/Mental Health Nurse Practitioner1730999020
  4. Kelly Goodwin, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1790532562
  5. David HaasPsychiatric/Mental Health Nurse Practitioner1962163063
  6. Susan Kiscadden, LCSWClinical Social Worker1366001588

Verify Margaret Holly Libonati 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 MD490699
    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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63% fewer Medicare Part D claims than the average family medicine physician in 2024

1,308 Medicare Part D claims for 108 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Margaret Libonati1,308
  2. Specialty average3,544

Most prescribed

  1. Albuterol Sulfate Hfa85 claims
  2. Atorvastatin Calcium73 claims
  3. Omeprazole45 claims
  4. Montelukast Sodium43 claims
  5. Levothyroxine Sodium41 claims
  6. Amlodipine Besylate39 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 GroupLancaster, PA

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

Margaret Holly Libonati among 7,483 family medicine physician records in Pennsylvania

Margaret Holly Libonati, 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 2021, is newer than 86% of them.

  • NPI issued2021 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2019 · 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).

213 family medicine physician records list a practice address in Lancaster

They are 213 of the 5,378 NPPES records with a practice address in Lancaster, and 7,483 family medicine physician records in Pennsylvania.

The 8 family medicine physician records with the nearest ZIP codes

  1. David Byler, MDLancaster, PA 176021710935648
  2. Federico Ceppa, MDLancaster, PA 176021144284704
  3. Howard Gerstein, MDLancaster, PA 176021346298999
  4. Jeffrey Kirchner, DOLancaster, PA 176021104864214
  5. D Thais Magill, M.D.Lancaster, PA 176021932172814
  6. Jeffrey Martin, MDLancaster, PA 176021578501680
  7. Luke Morley, DOLancaster, PA 176021033196332
  8. Maria Perlis, M.D.Lancaster, PA 176021275582314

Common questions

What is Margaret Holly Libonati, MD's NPI number?

Margaret Holly Libonati, MD's National Provider Identifier (NPI) is 1134702913, issued on Apr 30, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Holly Libonati, MD located?

The NPPES record lists a practice address at 802 New Holland Ave Ste 100, Lancaster, PA, 17602. Phone: (717) 544-1427. Providers update this record themselves, so call before visiting.

How can I verify Margaret Holly Libonati, MD's license?

NPPES lists Pennsylvania license number MD490699, 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 Margaret Holly Libonati, MD prescribe under Medicare Part D?

In 2024, Margaret Holly Libonati, MD had 1,308 Medicare Part D claims for 108 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.