NPPES file of Aug 9, 2026

Sara-Britt Guinta, PA-C

Physician Assistant · Nashua, NH

Sara-Britt Guinta, PA-C is a physician assistant with a practice address in Nashua, New Hampshire, and NPI 1629258025, issued on Nov 14, 2007. Check the license (New Hampshire 1338, as entered in NPPES) with the New Hampshire 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629258025
Name
Sara-Britt Guinta
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
1338 NH
PA19447 CA
Self-reported in NPPES; status is on the state search
Practice location
565 Amherst St, Nashua, NH 03063
Phone
(603) 578-3347
Enumerated
Nov 14, 2007
Record last updated
Feb 19, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180525000133); accepts Medicare assignment
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 565 Amherst St

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

  1. Kristine Ainsworth Quintal, FNPFamily Nurse Practitioner1992866016
  2. Catherine Dawson-Dow, APRNFamily Nurse Practitioner1174094429
  3. Morgan Descoteaux, PA-CPhysician Assistant1861969115
  4. Michael Doiron, PA-CSurgical Physician Assistant1942264320
  5. Kayla Fallis, PA-CPhysician Assistant1891524542
  6. Melissa Kubicki, FNP-BCFamily Nurse Practitioner1164962098

Verify Sara-Britt Guinta in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 1338
    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 New Hampshire 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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73% fewer Medicare Part D claims than the average physician assistant in 2024

227 Medicare Part D claims for 185 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Sara-Britt Guinta227
  2. Specialty average830

Most prescribed

  1. Doxycycline Hyclate36 claims
  2. Amoxicillin-Clavulanate Potass31 claims
  3. Cephalexin21 claims
  4. Prednisone14 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.

The MIPS final score for 2023 (Medicare payment program): 89.4 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score72.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Concord Hospital IncConcord, NH

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

94 physician assistant records list a practice address in Nashua

They are 94 of the 3,140 NPPES records with a practice address in Nashua, and 947 physician assistant records in New Hampshire.

Other physician assistant records in New Hampshire

  1. Micala Abbiati, PA-CBedford, NH1437702123
  2. Robin Abeles, PA-CNorth Conway, NH1285119875
  3. Maud AbessNew London, NH1174715452
  4. Rosemarie Addante, PA-CLebanon, NH1356846752
  5. Anna Adler, PA-CLebanon, NH1578216677
  6. Lisa Ahava, PAChesterfield, NH1487693453
  7. Ssara AhmmedManchester, NH1144140138
  8. Liliana Rose Akin, PA-S2Manchester, NH1205793551
  9. Matthew Alexander, PHD, PA-SLebanon, NH1548721517
  10. David Allen, PANashua, NH1952337982

Common questions

What is Sara-Britt Guinta, PA-C's NPI number?

Sara-Britt Guinta, PA-C's National Provider Identifier (NPI) is 1629258025, issued on Nov 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sara-Britt Guinta, PA-C located?

The NPPES record lists a practice address at 565 Amherst St, Nashua, NH, 03063. Phone: (603) 578-3347. Providers update this record themselves, so call before visiting.

How can I verify Sara-Britt Guinta, PA-C's license?

NPPES lists New Hampshire license number 1338, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

How much does Sara-Britt Guinta, PA-C prescribe under Medicare Part D?

In 2024, Sara-Britt Guinta, PA-C had 227 Medicare Part D claims for 185 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Sara-Britt Guinta, PA-C's MIPS final score?

The 2023 MIPS final score is 89.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.