Doctor profile · Federal record

Dr. Dorothy McGrath, PA-C

Physician Assistant · Internal Medicine Physician · Portsmouth, NH

  • NPI 1780641332
  • Accepts Medicare
  • 25 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
161 Corporate Dr
Portsmouth, NH 038016825
(603) 431-5154
fax (603) 430-5033
Mailing address
Po Box 9746
Portland, ME 041045040

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
March 2, 2023
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
New Hampshire #0577
Medicaid (2)
ME #432427999 · NH #3082893

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780641332. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
958
Distinct HCPCS
10
Medicare allowed
$55,827
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 230 122 $101
99213 Established patient office or other outpatient visit, 20-29 minutes 160 115 $75
36415 Insertion of needle into vein for collection of blood sample 92 65 $7
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 80 80 $104
80053 Blood test, comprehensive group of blood chemicals 72 64 $10
80061 Blood test, lipids (cholesterol and triglycerides) 67 60 $13
84443 Blood test, thyroid stimulating hormone (tsh) 36 27 $16
81003 Automated urinalysis test 30 27 $2
99203 New patient office or other outpatient visit, 30-44 minutes 30 30 $97
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 29 26 $8

In context: peer comparison

Among 20 peers in this city , average services per provider: 67. This provider delivers 14× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,191
Patients
425
Total drug cost
$19,043
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 139 62 $2,517
Levothyroxine Sodium Generic 122 45 $2,106
Hydrochlorothiazide Generic 109 39 $432
Lisinopril Generic 98 40 $775
Amlodipine Besylate Generic 97 41 $933
Lorazepam Generic 80 30 $1,013
Losartan Potassium Generic 77 28 $1,104
Citalopram Hbr (Citalopram Hydrobromide) Brand 75 14 $356
Simvastatin Generic 73 26 $989
Bupropion Xl (Bupropion Hcl) Brand 68 18 $1,700

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Dorothy McGrath's medical specialty?
Dr. Dorothy McGrath practices Physician Assistant in Portsmouth, NH.
Where does Dr. Dorothy McGrath practice?
Dr. Dorothy McGrath practices at 161 Corporate Dr, Portsmouth, NH 038016825. Office phone: 6034315154.
What is Dr. Dorothy McGrath's NPI?
Dr. Dorothy McGrath's National Provider Identifier (NPI) is 1780641332, issued by NPPES.
Does Dr. Dorothy McGrath accept Medicare assignment?
Yes. Dr. Dorothy McGrath accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dorothy McGrath commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.