Margaret Mary Hallahan, D.O.
Hospice and Palliative Medicine (Internal Medicine) Physician · Huntingdon, PA
Margaret Mary Hallahan, D.O. is a hospice and palliative medicine (internal medicine) physician with a practice address in Huntingdon, Pennsylvania, and NPI 1972818540, issued on Aug 8, 2010. Check the license (Pennsylvania OS016316, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Margaret Mary Hallahan
- Credential
- D.O.
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License number
- OS016316 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1225 Warm Springs Ave, Huntingdon, PA 16652
- Phone
- (814) 643-2290
- Enumerated
- Aug 8, 2010
- Record last updated
- May 7, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 102826058 PA
- Medicare enrollment
- Enrolled (PECOS I20131030001265); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2010
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 130 in Pennsylvania → Look up another NPI →
Also registered at 1225 Warm Springs Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalie Andresky, PA-CPhysician Assistant1285226324
- Winfried Berger, M.D.Orthopaedic Surgery Physician1851375877
- Daniel BrysonCertified Registered Nurse Anesthetist1629409305
- Devon CantalopeMedical Physician Assistant1699204586
- Arthur Cassot, CRNACertified Registered Nurse Anesthetist1538166533
- Michael Cesare, DOFamily Medicine Physician1760478002
Verify Margaret Mary Hallahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS016316Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23.0 times the Medicare Part D claims of the average hospice and palliative medicine (internal medicine) physician in 2024
17,006 Medicare Part D claims for 314 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 295 claims were for opioids.
Most prescribed
- Atorvastatin Calcium751 claims
- Levothyroxine Sodium550 claims
- Gabapentin477 claims
- Furosemide469 claims
- Pantoprazole Sodium449 claims
- Metoprolol Succinate384 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: $34.29
1 payment: food and beverage; the largest payer was Inari Medical, Inc. The 338 providers of this specialty with any payment received $547.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- CH Specialty Services PA PCAllentown, PA
- Curana Health OF Pennsylvania PCAllentown, PA
- J C Blair Memorial HospitalHuntingdon, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Mary Hallahan among 130 hospice and palliative medicine (internal medicine) physician records in Pennsylvania
Margaret Mary Hallahan, D.O. is one of 130 hospice and palliative medicine (internal medicine) physician records with a practice address in Pennsylvania. 90% 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 40% of them.
- NPI issued2010 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2010 · median 2011 among the 96 with a school on file
- Record last updated2018 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in Pennsylvania
There are 130 hospice and palliative medicine (internal medicine) physician records in Pennsylvania.
All 130 in Pennsylvania → Every provider in Huntingdon → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- Jesse BlankAltoona, PA 166011073931788
- Christian Niles, M.D.Enola, PA 170251982136594
- Alberta Alickaj, M.D.Hershey, PA 170331417184300
- Cheryl Boulanger, CRNPHershey, PA 170331639848823
- Michael Macauley, M.D.Hershey, PA 170331295969061
- Kristen Moyer, MDHershey, PA 170331689949992
- Kristina Newport, M.D.Hershey, PA 170331821201443
- James Probolus, M.D.Hershey, PA 170331962520015
Common questions
What is Margaret Mary Hallahan, D.O.'s NPI number?
Margaret Mary Hallahan, D.O.'s National Provider Identifier (NPI) is 1972818540, issued on Aug 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Mary Hallahan, D.O. located?
The NPPES record lists a practice address at 1225 Warm Springs Ave, Huntingdon, PA, 16652. Phone: (814) 643-2290. Providers update this record themselves, so call before visiting.
How can I verify Margaret Mary Hallahan, D.O.'s license?
NPPES lists Pennsylvania license number OS016316, 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 Mary Hallahan, D.O. prescribe under Medicare Part D?
In 2024, Margaret Mary Hallahan, D.O. had 17,006 Medicare Part D claims for 314 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. 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.