Doctor profile · Federal record

Dr. Andrew Ahearn, NP

Registered Nurse (CMS: Nurse Practitioner) · Leominster, MA

  • NPI 1598309932
  • Accepts Medicare
  • 6 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
225 New Lancaster RD
Leominster, MA 014534958
(978) 534-6500

Credentials & registration

NPPES · NUCC
NPI registered
October 2019 — 7 yrs on file
Profile last updated
March 14, 2021
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
163W00000X — NUCC code
State license (1)
Massachusetts #RN2319623

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598309932. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
326
Distinct HCPCS
6
Medicare allowed
$29,604
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 167 131 $79
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 64 64 $112
99214 Established patient office or other outpatient visit, 30-39 minutes 53 49 $111
G0008 Administration of influenza virus vaccine 15 15 $31
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 14 14 $75
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 13 13 $143

In context: peer comparison

Among 1 peers in Leominster Registered Nurse, average services per provider: 54. This provider delivers 6.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,249
Patients
825
Total drug cost
$45,567
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 450 153 $9,932
Lisinopril Generic 231 85 $3,601
Omeprazole Generic 195 64 $4,440
Amlodipine Besylate Generic 170 63 $2,075
Gabapentin Generic 161 50 $3,910
Levothyroxine Sodium Generic 161 62 $2,740
Losartan Potassium Generic 154 52 $3,400
Metformin Hcl Generic 117 49 $2,291
Metoprolol Succinate Generic 111 40 $2,368
Famotidine Generic 91 34 $1,954

Frequently asked questions

Auto-generated from federal data
What is Dr. Andrew Ahearn's medical specialty?
Dr. Andrew Ahearn practices Registered Nurse in Leominster, MA.
Where does Dr. Andrew Ahearn practice?
Dr. Andrew Ahearn practices at 225 New Lancaster RD, Leominster, MA 014534958. Office phone: 9785346500.
What is Dr. Andrew Ahearn's NPI?
Dr. Andrew Ahearn's National Provider Identifier (NPI) is 1598309932, issued by NPPES.
Does Dr. Andrew Ahearn accept Medicare assignment?
Yes. Dr. Andrew Ahearn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrew Ahearn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.