Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Andrew Ahearn, NP

Individual provider Registered Nurse · NPI 1598309932

Andrew Ahearn, NP is a Nurse Practitioner in Leominster, Massachusetts. Qualified in 2020, 6 years ago. Practices with Reliant Medical Group Inc, a 638-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
6
Licensed in
MA
In the registry since
2019
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

225 New Lancaster Rd
Leominster, MA 01453-4958
Phone: (978) 534-6500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence RN2319623 (MA)

Record details

NPI number1598309932
Entity typeIndividual (Type 1)
GenderMale
Credentials NP
Sole proprietorNo
NPI enumeratedOctober 29, 2019
Last updated in NPPESMarch 14, 2021
Certification dateMarch 14, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Reliant Medical Group Inc — 638 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients190
Services billed 400 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Reliant Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 638 clinicians in the practice; 12 are shown here.

Other providers in Leominster