Alyssa Kanagaki Greenleaf, PA-C
Medical Physician Assistant · Southington, CT
Alyssa Kanagaki Greenleaf, PA-C is a medical physician assistant with a practice address in Southington, Connecticut, and NPI 1861896524, issued on Oct 9, 2014. Check the license (Connecticut 4051, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alyssa Kanagaki Greenleaf
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License numbers
- 4051 CT
5169 MA
Self-reported in NPPES; status is on the state search - Practice location
- 462 Queen St Ste 303, Southington, CT 06489
- Phone
- (860) 224-5672
- Enumerated
- Oct 9, 2014
- Record last updated
- May 22, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180426001740); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,138 in Connecticut → Look up another NPI →
Also registered at 462 Queen St Ste 303
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Slavin, APRNFamily Nurse Practitioner1619499274
Verify Alyssa Kanagaki Greenleaf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 4051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average medical physician assistant in 2024
5,127 Medicare Part D claims for 772 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.
Most prescribed
- Ozempic319 claims
- Levothyroxine Sodium294 claims
- Mounjaro258 claims
- Jardiance239 claims
- Lantus Solostar239 claims
- Nano 2nd Gen Pen Needle226 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 practice group's MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $9,644.81
20 payments; by number, the most common kind was food and beverage; the largest payer was CeQur Corporation. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Hartford Healthcare Medical Group Specialists PLLCStorrs, CT
- The Hospital OF Central Connecticut AT New Britain General And BradleyNew Britain, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alyssa Kanagaki Greenleaf among 1,138 medical physician assistant records in Connecticut
Alyssa Kanagaki Greenleaf, PA-C is one of 1,138 medical physician assistant records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 51% of them.
- NPI issued2014 · 51% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2014 · median 2015 among the 732 with a school on file
- Record last updated2019 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 medical physician assistant records list a practice address in Southington
They are 6 of the 506 NPPES records with a practice address in Southington, and 1,138 medical physician assistant records in Connecticut.
All 1,138 in Connecticut → Every provider in Southington → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Vickie Gerdon, PA-CSouthington, CT 064891134194798
- Kriston Ronalter, PASouthington, CT 064891396238960
- Heather Ryng, PA-CSouthington, CT 064891306005954
- Navneet Singh, PA-CSouthington, CT 064891356369417
- Allison Valley, PASouthington, CT 064891700872694
- Allene McMurrer-Troy, P.A.Southbury, CT 064881952456980
- Gina Rupert, PACSouthbury, CT 064881184652711
- Rebecca Strubbe, PA-CSouthbury, CT 064881629250246
Common questions
What is Alyssa Kanagaki Greenleaf, PA-C's NPI number?
Alyssa Kanagaki Greenleaf, PA-C's National Provider Identifier (NPI) is 1861896524, issued on Oct 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Alyssa Kanagaki Greenleaf, PA-C located?
The NPPES record lists a practice address at 462 Queen St Ste 303, Southington, CT, 06489. Phone: (860) 224-5672. Providers update this record themselves, so call before visiting.
How can I verify Alyssa Kanagaki Greenleaf, PA-C's license?
NPPES lists Connecticut license number 4051, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Alyssa Kanagaki Greenleaf, PA-C prescribe under Medicare Part D?
In 2024, Alyssa Kanagaki Greenleaf, PA-C had 5,127 Medicare Part D claims for 772 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Alyssa Kanagaki Greenleaf, PA-C's MIPS final score?
The 2023 MIPS final score is 91.3 of 100, reported for the practice group. 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.