Isaac B. Sampson, PA
Medical Physician Assistant · Longmeadow, MA
Isaac B. Sampson, PA is a medical physician assistant with a practice address in Longmeadow, Massachusetts, and NPI 1861123481, issued on Jun 23, 2022. Check the license (Massachusetts PA100133, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isaac B. Sampson
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA100133 MA
Self-reported in NPPES; status is on the state search - Practice location
- 21 Dwight RD Ste 104, Longmeadow, MA 01106
- Phone
- (413) 795-4555
- Enumerated
- Jun 23, 2022
- Record last updated
- Jun 2, 2026
- Fax
- (413) 794-9448
- Medicare enrollment
- Enrolled (PECOS I20231205000812); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 886 in Massachusetts → Look up another NPI →
Also registered at 21 Dwight RD Ste 104
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Crista Callaghan, NPAdult Health Nurse Practitioner1578972279
- Jacob Freeman, PAMedical Physician Assistant1467969972
- Helena Gabriel, M.DInternal Medicine Physician1477993806
- Katelyn Kennedy, PHARMDPharmacist1194089391
- Tiffany Le, PAMedical Physician Assistant1346779154
- Victoria Murray, PAMedical Physician Assistant1851708184
Verify Isaac B. Sampson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA100133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average medical physician assistant in 2024
835 Medicare Part D claims for 252 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 40 claims were for opioids.
Most prescribed
- Trulicity63 claims
- Gabapentin39 claims
- Diclofenac Sodium34 claims
- Prednisone27 claims
- Lisinopril23 claims
- Tramadol Hcl18 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.
Bills Medicare through one group practice
- Baystate Medical Practices IncLongmeadow, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isaac B. Sampson among 886 medical physician assistant records in Massachusetts
Isaac B. Sampson, PA is one of 886 medical physician assistant records with a practice address in Massachusetts. 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 2022, is newer than 85% of them.
- NPI issued2022 · 85% of these records are older, 10% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2023 · median 2015 among the 559 with a school on file
- Record last updated2026 · 53% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 medical physician assistant records list a practice address in Longmeadow
They are 11 of the 489 NPPES records with a practice address in Longmeadow, and 886 medical physician assistant records in Massachusetts.
All 886 in Massachusetts → Every provider in Longmeadow → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Grace Albert, PA-CLongmeadow, MA 011061881819209
- Nathan Byrne, PA-C, MLSLongmeadow, MA 011061891319570
- Jacob Freeman, PALongmeadow, MA 011061467969972
- Pamela Jeppson, PA-CLongmeadow, MA 011061508376849
- Tiffany Le, PALongmeadow, MA 011061346779154
- Madeline Mathias, PA-CLongmeadow, MA 011061649903956
- Brittany Mullett, RDH, PA-CLongmeadow, MA 011061568233088
- Victoria Murray, PALongmeadow, MA 011061851708184
Common questions
What is Isaac B. Sampson, PA's NPI number?
Isaac B. Sampson, PA's National Provider Identifier (NPI) is 1861123481, issued on Jun 23, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Isaac B. Sampson, PA located?
The NPPES record lists a practice address at 21 Dwight RD Ste 104, Longmeadow, MA, 01106. Phone: (413) 795-4555. Providers update this record themselves, so call before visiting.
How can I verify Isaac B. Sampson, PA's license?
NPPES lists Massachusetts license number PA100133, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Isaac B. Sampson, PA prescribe under Medicare Part D?
In 2024, Isaac B. Sampson, PA had 835 Medicare Part D claims for 252 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.