NPPES file of Aug 9, 2026

Glenn Alan McGrath, MD

Endocrinology, Diabetes & Metabolism Physician · Willow Grove, PA

Glenn Alan McGrath, MD is an endocrinology, diabetes & metabolism physician with a practice address in Willow Grove, Pennsylvania, and NPI 1598766982, issued on Aug 9, 2005. Check the license (Pennsylvania MD043170E, 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
1598766982
Name
Glenn Alan McGrath
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
MD043170E PA
Self-reported in NPPES; status is on the state search
Practice location
2300 Computer RD, Willow Grove, PA 19090
Phone
(215) 657-5200
Enumerated
Aug 9, 2005
Record last updated
Feb 14, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(215) 657-8083
Medicare enrollment
Enrolled (PECOS I20040120000964); accepts Medicare assignment
Medical or professional school
Pennsylvania State University College Of Medicine, 1987
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 2300 Computer RD

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

  1. Algernon Baker, PHDMarriage & Family Therapist1902426471
  2. Michael Cassano, PH.D.Psychologist1528272937
  3. Angela Curry, PSY.DPsychologist1790043057
  4. Andrew Diamond, DMD, MSPeriodontics1912081498
  5. Adam Fields, D.M.D.Endodontics1083693261
  6. Joan Gangwer, MS,RD,CDE,LDNRegistered Dietitian1063482644

Verify Glenn Alan McGrath 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 MD043170E
    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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2.5 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024

6,640 Medicare Part D claims for 569 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims. 41 claims were for opioids.

  1. Glenn McGrath6,640
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium580 claims
  2. Synthroid369 claims
  3. Atorvastatin Calcium239 claims
  4. Metformin Hcl Er238 claims
  5. Repaglinide158 claims
  6. Novolog Flexpen130 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: $513.81

17 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Glenn McGrath$513.81
  2. Specialty average$5,742.15

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. Abington Memorial HospitalAbington, PA

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

Glenn Alan McGrath among 485 endocrinology, diabetes & metabolism physician records in Pennsylvania

Glenn Alan McGrath, MD is one of 485 endocrinology, diabetes & metabolism physician records with a practice address in Pennsylvania. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1987 · median 2004 among the 334 with a school on file
  • Record last updated2018 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Pennsylvania

There are 485 endocrinology, diabetes & metabolism physician records in Pennsylvania.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Peter Gkonos, MDWillow Grove, PA 190901689675050
  2. Nicky Kelepouris, MDWillow Grove, PA 190901285635748
  3. Melissa Sawyer Falcon, D.OWillow Grove, PA 190901689994105
  4. Erika Tapino, MDRadnor, PA 190871295811958
  5. Robert Becker, M.D.Wynnewood, PA 190961902193311
  6. Alexander CobitzWynnewood, PA 190961881062826
  7. Rita El-Hajj, MDWynnewood, PA 190961801867726
  8. Hisham Farhan, MDWynnewood, PA 190961538695598

Common questions

What is Glenn Alan McGrath, MD's NPI number?

Glenn Alan McGrath, MD's National Provider Identifier (NPI) is 1598766982, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Glenn Alan McGrath, MD located?

The NPPES record lists a practice address at 2300 Computer RD, Willow Grove, PA, 19090. Phone: (215) 657-5200. Providers update this record themselves, so call before visiting.

How can I verify Glenn Alan McGrath, MD's license?

NPPES lists Pennsylvania license number MD043170E, 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 Glenn Alan McGrath, MD prescribe under Medicare Part D?

In 2024, Glenn Alan McGrath, MD had 6,640 Medicare Part D claims for 569 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.