NPPES file of Aug 9, 2026

Heather C. Sienel, PA-C

Physician Assistant · Charlton, MA

Heather C. Sienel, PA-C is a physician assistant with a practice address in Charlton, Massachusetts, and NPI 1528316544, issued on Aug 23, 2012. Check the license (Massachusetts PA4478, as entered in NPPES) with the Massachusetts 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
1528316544
Name
Heather C. Sienel
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA4478 MA
Self-reported in NPPES; status is on the state search
Practice location
10 N Main St, Charlton, MA 01507
Phone
(508) 248-8105
Enumerated
Aug 23, 2012
Record last updated
Apr 9, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(508) 248-8106
Medicaid ID
110112302A MA
Medicare enrollment
Enrolled (PECOS I20121016000351); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 10 N Main St

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

  1. Ravindra Acharya, MDSurgery Physician1881608602
  2. Zareen Barry, NPRegistered Nurse1285060616
  3. Elias Belezos, M.D.Internal Medicine Physician1205819109
  4. Jeffrey Cohen, MDFamily Medicine Physician1962478008
  5. Helen Connolly, NPNurse Practitioner1871323949
  6. Kelly Diaz, PHYSICIAN ASSISTANTPhysician Assistant1568029437

Verify Heather C. Sienel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license PA4478
    Check 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
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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62% fewer Medicare Part D claims than the average physician assistant in 2024

316 Medicare Part D claims for 103 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 47 claims were for opioids.

  1. Heather Sienel316
  2. Specialty average830

Most prescribed

  1. Doxycycline Hyclate57 claims
  2. Triamcinolone Acetonide42 claims
  3. Tramadol Hcl35 claims
  4. Gabapentin34 claims
  5. Amoxicillin-Clavulanate Potass20 claims
  6. Levofloxacin14 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.

Industry payments in 2024: $216.05

2 payments; by number, the most common kind was food and beverage; the largest payer was Organogenesis Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Heather Sienel$216.05
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Umass Memorial Medical Group IncCharlton, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Heather C. Sienel among 4,713 physician assistant records in Massachusetts

Heather C. Sienel, PA-C is one of 4,713 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 2012, is newer than 25% of them.

  • NPI issued2012 · 25% of these records are older, 72% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2009 · median 2019 among the 3,217 with a school on file
  • Record last updated2019 · 38% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 physician assistant records list a practice address in Charlton

They are 4 of the 149 NPPES records with a practice address in Charlton, and 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Kelly Diaz, PHYSICIAN ASSISTANTCharlton, MA 015071568029437
  2. Traci Mercier, PACharlton, MA 015071679934335
  3. Cali Peffer, PA-CCharlton, MA 015071023605953
  4. Kali Dipilla, PABoylston, MA 015051528638012
  5. Robert Bogdasarian, PA-CAuburn, MA 015011063838258
  6. Daniel Clemente, PAAuburn, MA 015011629830641
  7. Sarah Dingman, PAAuburn, MA 015011184235079
  8. Shawn Eck, PA-CAuburn, MA 015011942440474

Common questions

What is Heather C. Sienel, PA-C's NPI number?

Heather C. Sienel, PA-C's National Provider Identifier (NPI) is 1528316544, issued on Aug 23, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Heather C. Sienel, PA-C located?

The NPPES record lists a practice address at 10 N Main St, Charlton, MA, 01507. Phone: (508) 248-8105. Providers update this record themselves, so call before visiting.

How can I verify Heather C. Sienel, PA-C's license?

NPPES lists Massachusetts license number PA4478, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Heather C. Sienel, PA-C prescribe under Medicare Part D?

In 2024, Heather C. Sienel, PA-C had 316 Medicare Part D claims for 103 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.