Ryan Halloran
Physician Assistant · Norwalk, CT
Ryan Halloran is a physician assistant with a practice address in Norwalk, Connecticut, and NPI 1851917561, issued on Jun 18, 2020. Check the license with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ryan Halloran
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 8 Apple St, Norwalk, CT 06851
- Phone
- (203) 803-8690
- Enumerated
- Jun 18, 2020
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220302001713); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,047 in Connecticut → Look up another NPI →
Verify Ryan Halloran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average physician assistant in 2024
228 Medicare Part D claims for 112 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 20 claims were for opioids.
Most prescribed
- Clopidogrel65 claims
- Atorvastatin Calcium41 claims
- Xarelto35 claims
- Oxycodone Hcl16 claims
- Eliquis15 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): 97.6 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 2 group practices
- Parkview Ancillary Services CorporationPueblo, CO
- Poudre Valley Medical Group LLCPueblo, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Halloran among 2,047 physician assistant records in Connecticut
Ryan Halloran is one of 2,047 physician assistant records with a practice address in Connecticut. 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 2020, is newer than 60% of them.
- NPI issued2020 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2020 · median 2018 among the 1,338 with a school on file
- Record last updated2021 · 42% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 physician assistant records list a practice address in Norwalk
They are 54 of the 1,993 NPPES records with a practice address in Norwalk, and 2,047 physician assistant records in Connecticut.
All 2,047 in Connecticut → Every provider in Norwalk → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christina Chao, P.A.Norwalk, CT 068511003158460
- Mary-Jane Cross, PA-CNorwalk, CT 068511396816732
- Diana D'Amelio, PANorwalk, CT 068511669541314
- Bhumi Dodson, PANorwalk, CT 068511366994923
- Jody Finnegan, PACNorwalk, CT 068511841441144
- Kaitlyn Foley, PA-CNorwalk, CT 068511942680616
- Lisa Gengo, ND, PACNorwalk, CT 068511023289881
- Jessica Gilson, PANorwalk, CT 068511972045375
Common questions
What is Ryan Halloran's NPI number?
Ryan Halloran's National Provider Identifier (NPI) is 1851917561, issued on Jun 18, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Halloran located?
The NPPES record lists a practice address at 8 Apple St, Norwalk, CT, 06851. Phone: (203) 803-8690. Providers update this record themselves, so call before visiting.
How can I verify Ryan Halloran's license?
Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Ryan Halloran prescribe under Medicare Part D?
In 2024, Ryan Halloran had 228 Medicare Part D claims for 112 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Ryan Halloran's MIPS final score?
The 2023 MIPS final score is 97.6 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.