NPPES file of Aug 9, 2026

Sarah Vacca, PA-C

Physician Assistant · Amherst, MA

Sarah Vacca, PA-C is a physician assistant with a practice address in Amherst, Massachusetts, and NPI 1164082640, issued on Jun 18, 2019. Check the license 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
1164082640
Name
Sarah Vacca
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
Practice location
17 Research Dr, Amherst, MA 01002
Phone
(413) 549-8400
Enumerated
Jun 18, 2019
Record last updated
Nov 18, 2025
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 17 Research Dr

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

  1. Haiying Conover, LICAC, MAOM, LMTAcupuncturist1205341070
  2. Adam CorriveauPhysician Assistant1295441954
  3. Jessica Jimison, FNP-CFamily Nurse Practitioner1518051473
  4. Paul Krepel, LMFTMarriage & Family Therapist1164571329
  5. Michele Larock, MS RDN LDNRegistered Dietitian1477971323
  6. Laura Manfield-Goodridge, DOPhysical Medicine & Rehabilitation Physician1295994010

Verify Sarah Vacca in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck 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
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12% fewer Medicare Part D claims than the average physician assistant in 2024

731 Medicare Part D claims for 110 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Sarah Vacca731
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium71 claims
  2. Amlodipine Besylate48 claims
  3. Levothyroxine Sodium42 claims
  4. Lisinopril23 claims
  5. Losartan Potassium23 claims
  6. Trelegy Ellipta22 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: $315.46

15 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sarah Vacca$315.46
  2. Specialty average$841.65

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

Sarah Vacca among 4,713 physician assistant records in Massachusetts

Sarah Vacca, PA-C is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% 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 50% of them.

  • NPI issued2019 · 50% of these records are older, 44% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2025 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 physician assistant records list a practice address in Amherst

They are 12 of the 769 NPPES records with a practice address in Amherst, and 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Michael Brown, PA-CAmherst, MA 010021770686859
  2. Hannah Colling, PA-CAmherst, MA 010021225983182
  3. Adam CorriveauAmherst, MA 010021295441954
  4. Casey Erelli, PA-CAmherst, MA 010021700409893
  5. Blair Maerowitz, PA-CAmherst, MA 010021235107970
  6. Nora Mahoney, PA-CAmherst, MA 010021558996975
  7. Ashley Roberge, PA-CAmherst, MA 010021841081874
  8. Chalan Whelan, PA-CAmherst, MA 010021528984440

Common questions

What is Sarah Vacca, PA-C's NPI number?

Sarah Vacca, PA-C's National Provider Identifier (NPI) is 1164082640, issued on Jun 18, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Vacca, PA-C located?

The NPPES record lists a practice address at 17 Research Dr, Amherst, MA, 01002. Phone: (413) 549-8400. Providers update this record themselves, so call before visiting.

How can I verify Sarah Vacca, PA-C's license?

Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah Vacca, PA-C prescribe under Medicare Part D?

In 2024, Sarah Vacca, PA-C had 731 Medicare Part D claims for 110 beneficiaries; the average among physician assistant prescribers was 830. 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.