NPPES file of Aug 9, 2026

Erin Baldino Guarnieri, FNP, B.C.

Family Nurse Practitioner · Upton, MA

Erin Baldino Guarnieri, FNP, B.C. is a family nurse practitioner with a practice address in Upton, Massachusetts, and NPI 1093470536, issued on Oct 31, 2021. Check the license (Massachusetts RN2301945, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093470536
Name
Erin Baldino Guarnieri
Credential
FNP, B.C.
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
RN2301945 MA
Self-reported in NPPES; status is on the state search
Practice location
28 Howarth Dr, Upton, MA 01568
Phone
(617) 818-0416
Enumerated
Oct 31, 2021
Record last updated
Nov 12, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 28 Howarth Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michael GuarnieriPhysical Therapist1821942236

Verify Erin Baldino Guarnieri in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2301945
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

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40% fewer Medicare Part D claims than the average family nurse practitioner in 2024

786 Medicare Part D claims for 165 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 135 claims were for opioids.

  1. Erin Guarnieri786
  2. Specialty average1,305

Most prescribed

  1. Oxycodone Hcl47 claims
  2. Gabapentin42 claims
  3. Quetiapine Fumarate35 claims
  4. Oxycodone-Acetaminophen28 claims
  5. Cyclobenzaprine Hcl20 claims
  6. 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; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Erin Guarnieri$1,222.56
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Erin Baldino Guarnieri among 4,724 family nurse practitioner records in Massachusetts

Erin Baldino Guarnieri, FNP, B.C. is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 67% of them.

  • NPI issued2021 · 67% of these records are older, 28% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2024 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 family nurse practitioner records list a practice address in Upton

They are 2 of the 103 NPPES records with a practice address in Upton, and 4,724 family nurse practitioner records in Massachusetts.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Bernadette Gleeson, RN/NPUpton, MA 015681992896427
  2. Kim Da Silva, FNP, RNUxbridge, MA 015691093045650
  3. Christine Delisle, FNP-CUxbridge, MA 015691295559649
  4. Franklin Erzuah, NURSE PRACTITIONERUxbridge, MA 015691205262185
  5. Lisa Hefron, FNPUxbridge, MA 015691558127555
  6. Alyssa Miranda, FNPUxbridge, MA 015691154994747
  7. Rachel Niemiec, FNPUxbridge, MA 015691033462742
  8. Tammy Patton, FNPUxbridge, MA 015691881927622

Common questions

What is Erin Baldino Guarnieri, FNP, B.C.'s NPI number?

Erin Baldino 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 Baldino 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 Baldino Guarnieri, FNP, B.C.'s license?

NPPES lists Massachusetts license number RN2301945, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Erin Baldino Guarnieri, FNP, B.C. prescribe under Medicare Part D?

In 2024, Erin Baldino Guarnieri, FNP, B.C. had 786 Medicare Part D claims for 165 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.