Demetrios Carellas, PA-C
Physician Assistant · Shrewsbury, MA
Demetrios Carellas, PA-C is a physician assistant with a practice address in Shrewsbury, Massachusetts, and NPI 1568133072, issued on Sep 23, 2021. Check the license (Massachusetts PA100323, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Demetrios Carellas
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA100323 MA
MA062999 PA
Self-reported in NPPES; status is on the state search - Practice location
- 378 Maple Ave, Shrewsbury, MA 01545
- Phone
- (508) 595-2513
- Enumerated
- Sep 23, 2021
- Record last updated
- Dec 19, 2024
- Fax
- (508) 595-2021
- Medicaid ID
- 110212481A MA
- Medicare enrollment
- Enrolled (PECOS I20240820003946); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 378 Maple Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Demetrios Carellas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA100323Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.1 times the Medicare Part D claims of the average physician assistant in 2024
5,926 Medicare Part D claims for 539 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 156 claims were for opioids.
Most prescribed
- Levothyroxine Sodium377 claims
- Atorvastatin Calcium295 claims
- Amlodipine Besylate212 claims
- Metformin Hcl171 claims
- Losartan Potassium136 claims
- Jardiance133 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: $115.51
5 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
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
- Reliant Medical Group IncShrewsbury, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Demetrios Carellas among 4,713 physician assistant records in Massachusetts
Demetrios Carellas, 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 2021, is newer than 63% of them.
- NPI issued2021 · 63% of these records are older, 32% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2021 · median 2019 among the 3,217 with a school on file
- Record last updated2024 · 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).
Physician Assistant providers in Massachusetts
There are 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Shrewsbury → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christine Collotta, PA-CShrewsbury, MA 015451619942950
- Madeline Konz, PA-CShrewsbury, MA 015451477238145
- Erica NaderShrewsbury, MA 015451215556113
- Nicole CummingsRutland, MA 015431205636396
- Elena Grammatikakis, PARochdale, MA 015421508848896
- Odeta Hysenaj, PARochdale, MA 015421306835129
- Dianne Aguirre, PASouthbridge, MA 015501659874121
- John Arsenault, PA-CSouthbridge, MA 015501588602437
Common questions
What is Demetrios Carellas, PA-C's NPI number?
Demetrios Carellas, PA-C's National Provider Identifier (NPI) is 1568133072, issued on Sep 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Demetrios Carellas, PA-C located?
The NPPES record lists a practice address at 378 Maple Ave, Shrewsbury, MA, 01545. Phone: (508) 595-2513. Providers update this record themselves, so call before visiting.
How can I verify Demetrios Carellas, PA-C's license?
NPPES lists Massachusetts license number PA100323, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Demetrios Carellas, PA-C prescribe under Medicare Part D?
In 2024, Demetrios Carellas, PA-C had 5,926 Medicare Part D claims for 539 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.