NPPES file of Aug 9, 2026

Amy-Lyn Gumprecht, P.A.

Physician Assistant · Greenfield, MA

Amy-Lyn Gumprecht, P.A. is a physician assistant with a practice address in Greenfield, Massachusetts, and NPI 1558377093, issued on Aug 1, 2006. Check the license (Massachusetts PA1559, 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
1558377093
Name
Amy-Lyn Gumprecht
Credential
P.A.
Primary taxonomy
Physician Assistant 363A00000X
License numbers
PA1559 MA
PA 1559 MA
Self-reported in NPPES; status is on the state search
Practice location
329 Conway St, Greenfield, MA 01301
Phone
(413) 774-6301
Enumerated
Aug 1, 2006
Record last updated
Mar 29, 2023
Fax
(866) 644-0871
Medicare enrollment
Enrolled (PECOS I20071002000670); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 329 Conway St

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

  1. Mark Allen, M.D.Family Medicine Physician1285633198
  2. John Anderson, ED.D.Clinical Psychologist1871678136
  3. Lisa Appleton, NPNurse Practitioner1831219609
  4. Marie Bartlett, MSWClinical Social Worker1790815306
  5. Barbara Berthiaume, APRNFamily Nurse Practitioner1053736629
  6. Jessica Biggie, MDFamily Medicine Physician1689649584

Verify Amy-Lyn Gumprecht 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 PA1559
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.1 times the Medicare Part D claims of the average physician assistant in 2024

3,425 Medicare Part D claims for 421 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 91 claims were for opioids.

  1. Amy-Lyn Gumprecht3,425
  2. Specialty average830

Most prescribed

  1. Amlodipine Besylate179 claims
  2. Atorvastatin Calcium178 claims
  3. Lisinopril163 claims
  4. Levothyroxine Sodium160 claims
  5. Losartan Potassium99 claims
  6. Simvastatin97 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

  1. Valley Medical Group PCAmherst, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Amy-Lyn Gumprecht among 4,713 physician assistant records in Massachusetts

Amy-Lyn Gumprecht, P.A. 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 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 87% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2002 · median 2019 among the 3,217 with a school on file
  • Record last updated2023 · 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).

Physician Assistant providers in Massachusetts

There are 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Carol Conolly, RPA-CGreenfield, MA 013011699177394
  2. Paul Fionte, PAGreenfield, MA 013011154975811
  3. Mariah Hamilton, PA-CGreenfield, MA 013011104393891
  4. Ryan Haug, PAGreenfield, MA 013011013977065
  5. Talia Hicks, PA-CGreenfield, MA 013011750237335
  6. Ronald Kelter, PAGreenfield, MA 013011629030952
  7. Christy Russo, PA-CGreenfield, MA 013011841977857
  8. Alec Shostek, PA-CGreenfield, MA 013011972223790

Common questions

What is Amy-Lyn Gumprecht, P.A.'s NPI number?

Amy-Lyn Gumprecht, P.A.'s National Provider Identifier (NPI) is 1558377093, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Amy-Lyn Gumprecht, P.A. located?

The NPPES record lists a practice address at 329 Conway St, Greenfield, MA, 01301. Phone: (413) 774-6301. Providers update this record themselves, so call before visiting.

How can I verify Amy-Lyn Gumprecht, P.A.'s license?

NPPES lists Massachusetts license number PA1559, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Amy-Lyn Gumprecht, P.A. prescribe under Medicare Part D?

In 2024, Amy-Lyn Gumprecht, P.A. had 3,425 Medicare Part D claims for 421 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.