Andrew Ahearn, NP
Registered Nurse · Leominster, MA
Andrew Ahearn, NP is a registered nurse with a practice address in Leominster, Massachusetts, and NPI 1598309932, issued on Oct 29, 2019. Check the license (Massachusetts RN2319623, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Andrew Ahearn
- Credential
- NP
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- RN2319623 MA
Self-reported in NPPES; status is on the state search - Practice location
- 225 New Lancaster RD, Leominster, MA 01453
- Phone
- (978) 534-6500
- Enumerated
- Oct 29, 2019
- Record last updated
- Mar 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200520002701); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest registered nurse records → All 4,985 in Massachusetts → Look up another NPI →
Also registered at 225 New Lancaster RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Alatalo, PTPhysical Therapist1245219112
- Kathryn Allen, LICSWSocial Worker1427505916
- Shawna Baker, DNPFamily Nurse Practitioner1912627399
- Amy Chau, NPFamily Nurse Practitioner1235840356
- Pamela Demar, FNP-BCFamily Nurse Practitioner1124358916
- Joseph Difranza, M.D.Family Medicine Physician1093798902
Verify Andrew Ahearn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2319623Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.6 times the Medicare Part D claims of the average registered nurse in 2024
5,155 Medicare Part D claims for 690 beneficiaries, against an average of 678 among the 694 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 92 claims were for opioids.
Most prescribed
- Atorvastatin Calcium418 claims
- Lisinopril252 claims
- Amlodipine Besylate213 claims
- Omeprazole197 claims
- Levothyroxine Sodium184 claims
- Losartan Potassium183 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
- Reliant Medical Group IncLeominster, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Ahearn among 4,985 registered nurse records in Massachusetts
Andrew Ahearn, NP is one of 4,985 registered nurse records with a practice address in Massachusetts. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 46% of them.
- NPI issued2019 · 46% of these records are older, 50% newer
- In a Medicare fileYes · 3% of these records are
- In the CMS Doctors and Clinicians fileYes · 2% of these records are
- Graduated2020 · median 2022 among the 110 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 registered nurse records list a practice address in Leominster
They are 35 of the 1,151 NPPES records with a practice address in Leominster, and 4,985 registered nurse records in Massachusetts.
All 4,985 in Massachusetts → Every provider in Leominster → Registered Nurse nationwide →
The 8 registered nurse records with the nearest ZIP codes
- Cynthia Asante, RNLeominster, MA 014531629413513
- Maryann Bourget, RNLeominster, MA 014531275645475
- Amy Cundall, RNLeominster, MA 014531922313733
- Danielle Darneille, RNLeominster, MA 014531932215324
- Stephanie Dimock-Stone, RNLeominster, MA 014531891093043
- Michelle Felton, RNLeominster, MA 014531013489087
- Kathleen McGuire, R.N.Leominster, MA 014531740462480
- Jennifer Monahan, R.N.Leominster, MA 014531740577402
Common questions
What is Andrew Ahearn, NP's NPI number?
Andrew Ahearn, NP's National Provider Identifier (NPI) is 1598309932, issued on Oct 29, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Ahearn, NP located?
The NPPES record lists a practice address at 225 New Lancaster RD, Leominster, MA, 01453. Phone: (978) 534-6500. Providers update this record themselves, so call before visiting.
How can I verify Andrew Ahearn, NP's license?
NPPES lists Massachusetts license number RN2319623, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Andrew Ahearn, NP prescribe under Medicare Part D?
In 2024, Andrew Ahearn, NP had 5,155 Medicare Part D claims for 690 beneficiaries; the average among registered nurse prescribers was 678. 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.