NPPES file of Aug 9, 2026

Christine M. McIsaac, PA

Physician Assistant · East Setauket, NY

Christine M. McIsaac, PA is a physician assistant with a practice address in East Setauket, New York, and NPI 1710656442, issued on Sep 7, 2021. Check the license with the New York 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
1710656442
Name
Christine M. McIsaac
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
Practice location
45 Research Way Ste 108, East Setauket, NY 11733
Phone
(631) 941-2000
Enumerated
Sep 7, 2021
Record last updated
Feb 11, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 45 Research Way Ste 108

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

  1. Enas Abuhadba, FNP-BCFamily Nurse Practitioner1891511531
  2. Spencer Alvarado, PAPhysician Assistant1427833631
  3. Kathleen Callaghan, NP, RNAdult Health Nurse Practitioner1053097691
  4. Katelyn Doherty, NPNurse Practitioner1851991194
  5. Liliana Garcia, NPFamily Nurse Practitioner1841037058
  6. Kristen Hass, PA-CPhysician Assistant1538972054

Verify Christine M. McIsaac in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this professionCheck 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
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7.4 times the Medicare Part D claims of the average physician assistant in 2024

6,168 Medicare Part D claims for 2,006 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Christine McIsaac6,168
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium717 claims
  2. Metoprolol Succinate606 claims
  3. Rosuvastatin Calcium578 claims
  4. Eliquis453 claims
  5. Amlodipine Besylate425 claims
  6. Losartan Potassium260 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.

Christine M. McIsaac among 15,555 physician assistant records in New York

Christine M. McIsaac, PA is one of 15,555 physician assistant records with a practice address in New York. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 66% of them.

  • NPI issued2021 · 66% of these records are older, 29% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 52% of these records are
  • Record last updated2022 · 48% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

42 physician assistant records list a practice address in East Setauket

They are 42 of the 972 NPPES records with a practice address in East Setauket, and 15,555 physician assistant records in New York.

The 8 physician assistant records with the nearest ZIP codes

  1. Jennifer Castelli, P.A.East Setauket, NY 117331184665374
  2. Maya Fox-Ryvicker, P.A.East Setauket, NY 117331497702666
  3. Caryle Francis, P.A.East Setauket, NY 117331154654499
  4. Grace Grandville, P.A.E Setauket, NY 117331033382098
  5. Thitima Herfel, PAEast Setauket, NY 117331265573919
  6. Christina Hull, PAEast Setauket, NY 117331598862211
  7. Maria Juvan, P.A.E Setauket, NY 117331972544260
  8. Christopher Koch, PAEast Setauket, NY 117331780858951

Common questions

What is Christine M. McIsaac, PA's NPI number?

Christine M. McIsaac, PA's National Provider Identifier (NPI) is 1710656442, issued on Sep 7, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Christine M. McIsaac, PA located?

The NPPES record lists a practice address at 45 Research Way Ste 108, East Setauket, NY, 11733. Phone: (631) 941-2000. Providers update this record themselves, so call before visiting.

How can I verify Christine M. McIsaac, PA's license?

Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Christine M. McIsaac, PA prescribe under Medicare Part D?

In 2024, Christine M. McIsaac, PA had 6,168 Medicare Part D claims for 2,006 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.