Alyssa Ann Duperry, APRN
Family Nurse Practitioner · Old Saybrook, CT
Alyssa Ann Duperry, APRN is a family nurse practitioner with a practice address in Old Saybrook, Connecticut, and NPI 1245994284, issued on Oct 26, 2021. Check the license (Connecticut 10017, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alyssa Ann Duperry
- Credential
- APRN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 10017 CT
Self-reported in NPPES; status is on the state search - Practice location
- 154 Main St, Old Saybrook, CT 06475
- Phone
- (860) 358-5120
- Enumerated
- Oct 26, 2021
- Record last updated
- Nov 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20220224001331); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 154 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Izabela Ferrer, DOFamily Medicine Physician1548882830
- Leonard Guitar, PSY.D.Clinical Psychologist1164570339
- Lucinda Hautaniemi, MDFamily Medicine Physician1437193273
- Robert Jones, MDFamily Medicine Physician1659513315
- Robyn Reilly, APRN, FNP-BCFamily Nurse Practitioner1316323397
- Nathan Scott, A.P.R.N.Family Nurse Practitioner1174868095
Verify Alyssa Ann Duperry in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 10017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% more Medicare Part D claims than the average family nurse practitioner in 2024
2,547 Medicare Part D claims for 335 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium162 claims
- Levothyroxine Sodium158 claims
- Lisinopril157 claims
- Amlodipine Besylate153 claims
- Rosuvastatin Calcium147 claims
- Escitalopram Oxalate69 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): 97.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mhs Primary Care, Inc.Old Saybrook, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
13 family nurse practitioner records list a practice address in Old Saybrook
They are 13 of the 308 NPPES records with a practice address in Old Saybrook, and 2,669 family nurse practitioner records in Connecticut.
All 13 in Old Saybrook → All 2,669 in Connecticut → Every provider in Old Saybrook →
Other family nurse practitioner records in Connecticut
- Anna Liza Abastillas, APRNSouthington, CT1063572014
- Renato Abastillas, APRNRocky Hill, CT1568795821
- Farhiya AbdiSouth Windsor, CT1609382027
- Maryam Abdishoo, NPPutnam, CT1275143778
- Anwar Abdulrehman, APRNWaterbury, CT1194614255
- Adey Abebe, APRNDanbury, CT1558914648
- Talita Acciari, APRNNew Haven, CT1275469777
- Denise AceStratford, CT1003572033
- Kwame Acheampong, NPStratford, CT1659975969
- Tara Ackerly, FNPDanbury, CT1831331602
Common questions
What is Alyssa Ann Duperry, APRN's NPI number?
Alyssa Ann Duperry, APRN's National Provider Identifier (NPI) is 1245994284, issued on Oct 26, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Alyssa Ann Duperry, APRN located?
The NPPES record lists a practice address at 154 Main St, Old Saybrook, CT, 06475. Phone: (860) 358-5120. Providers update this record themselves, so call before visiting.
How can I verify Alyssa Ann Duperry, APRN's license?
NPPES lists Connecticut license number 10017, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Alyssa Ann Duperry, APRN prescribe under Medicare Part D?
In 2024, Alyssa Ann Duperry, APRN had 2,547 Medicare Part D claims for 335 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Alyssa Ann Duperry, APRN's MIPS final score?
The 2023 MIPS final score is 97.3 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.