NPPES file of Aug 9, 2026

Dorothy B. McGrath, PA-C

Physician Assistant · Portsmouth, NH

Dorothy B. McGrath, PA-C is a physician assistant with a practice address in Portsmouth, New Hampshire, and NPI 1780641332, issued on Apr 27, 2006. Check the license (New Hampshire 0577, as entered in NPPES) with the New Hampshire 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
1780641332
Name
Dorothy B. McGrath
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
0577 NH
Self-reported in NPPES; status is on the state search
Practice location
161 Corporate Dr, Portsmouth, NH 03801
Phone
(603) 431-5154
Enumerated
Apr 27, 2006
Record last updated
Jun 3, 2026
Fax
(603) 430-5033
Medicaid IDs
432427999 ME
3082893 NH
Medicare enrollment
Enrolled (PECOS I20060323000387); 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 161 Corporate Dr

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

  1. Emily-Anne Boone, DOFamily Medicine Physician1952962623
  2. Thomas Boynton, RNGeneral Practice Registered Nurse1649985144
  3. Teresa Callahan, PA-CPhysician Assistant1699715649
  4. Kathleen Cole, DPTPhysical Therapist1871808667
  5. Derek Dore, PHARM.D.Pharmacist1720252034
  6. Daniel FleuryPhysical Therapist1366454605

Verify Dorothy B. McGrath in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 0577
    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 New Hampshire license search

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4.3 times the Medicare Part D claims of the average physician assistant in 2024

3,546 Medicare Part D claims for 404 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 35 claims were for opioids.

  1. Dorothy McGrath3,546
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium223 claims
  2. Lisinopril124 claims
  3. Amlodipine Besylate116 claims
  4. Levothyroxine Sodium111 claims
  5. Lorazepam103 claims
  6. Losartan Potassium97 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. Martin's Point Health Care, Inc.Portsmouth, NH

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

52 physician assistant records list a practice address in Portsmouth

They are 52 of the 1,860 NPPES records with a practice address in Portsmouth, and 947 physician assistant records in New Hampshire.

Other physician assistant records in New Hampshire

  1. Micala Abbiati, PA-CBedford, NH1437702123
  2. Robin Abeles, PA-CNorth Conway, NH1285119875
  3. Maud AbessNew London, NH1174715452
  4. Rosemarie Addante, PA-CLebanon, NH1356846752
  5. Anna Adler, PA-CLebanon, NH1578216677
  6. Lisa Ahava, PAChesterfield, NH1487693453
  7. Ssara AhmmedManchester, NH1144140138
  8. Liliana Rose Akin, PA-S2Manchester, NH1205793551
  9. Matthew Alexander, PHD, PA-SLebanon, NH1548721517
  10. David Allen, PANashua, NH1952337982

Common questions

What is Dorothy B. McGrath, PA-C's NPI number?

Dorothy B. McGrath, PA-C's National Provider Identifier (NPI) is 1780641332, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dorothy B. McGrath, PA-C located?

The NPPES record lists a practice address at 161 Corporate Dr, Portsmouth, NH, 03801. Phone: (603) 431-5154. Providers update this record themselves, so call before visiting.

How can I verify Dorothy B. McGrath, PA-C's license?

NPPES lists New Hampshire license number 0577, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

How much does Dorothy B. McGrath, PA-C prescribe under Medicare Part D?

In 2024, Dorothy B. McGrath, PA-C had 3,546 Medicare Part D claims for 404 beneficiaries; the average among physician assistant prescribers was 830. 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.