Erin Guarnieri, FNP, B.C.
Registered Nurse · Upton, MA
Erin Guarnieri, FNP, B.C. is a registered nurse with a practice address in Upton, Massachusetts, and NPI 1093470536, issued on Oct 31, 2021. Check the license with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Guarnieri
- Credential
- FNP, B.C.
- Primary taxonomy
- Registered Nurse 163W00000X
- Practice location
- 28 Howarth Dr, Upton, MA 01568
- Phone
- (617) 818-0416
- Enumerated
- Oct 31, 2021
- Entity
- Type 1 · individual
Also registered at 28 Howarth Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael GuarnieriPhysical Therapist1821942236
Verify Erin Guarnieri in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
26% fewer Medicare Part D claims than the average registered nurse in 2024
786 Medicare Part D claims for 165 beneficiaries, against an average of 1,063 among the 17,151 providers of this specialty who prescribed in Part D. 135 claims were for opioids.
Most prescribed
- Oxycodone Hcl47 claims
- Gabapentin42 claims
- Quetiapine Fumarate35 claims
- Oxycodone-Acetaminophen28 claims
- Cyclobenzaprine Hcl20 claims
- Morphine Sulfate Er18 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.
Industry payments in 2024: $1,222.56
51 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 16,089 providers of this specialty with any payment received $575.97 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 registered nurse records list a Upton practice address
They are 2 of the 103 NPPES records with a Upton practice address, and 6,291 registered nurse records in Massachusetts.
All 2 in Upton → All 6,291 in Massachusetts → Every provider in Upton →
Other registered nurse records in Massachusetts
- Sabrina AbanoorBoston, MA1215818745
- Jennifer Abazorius, RNFitchburg, MA1467294462
- Kobina Abban-Saah, RNWest Roxbury, MA1770873309
- Adanesh AbbayCambridge, MA1639993652
- Alberta Abbuah, PMHNPFramingham, MA1437873411
- Israh AbdeljaberWorcester, MA1912629528
- Naheelah Abdullah, RNQuincy, MA1124848015
- Mutawakilu Abdulsalam, RNWestford, MA1598249740
- Nina AbelowitzConcord, MA1528201704
- Andrea Aberdale-SmithSpringfield, MA1871463885
Common questions
What is Erin Guarnieri, FNP, B.C.'s NPI number?
Erin Guarnieri, FNP, B.C.'s National Provider Identifier (NPI) is 1093470536, issued on Oct 31, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Erin Guarnieri, FNP, B.C. located?
The NPPES record lists a practice address at 28 Howarth Dr, Upton, MA, 01568. Phone: (617) 818-0416. Providers update this record themselves, so call before visiting.
How can I verify Erin Guarnieri, FNP, B.C.'s license?
Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Guarnieri, FNP, B.C. prescribe under Medicare Part D?
In 2024, Erin Guarnieri, FNP, B.C. had 786 Medicare Part D claims for 165 beneficiaries; the average among registered nurse prescribers was 1,063. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.