Deborah S. Derderian, D.O.
Internal Medicine Physician · Mendon, MA
Deborah S. Derderian, D.O. is an internal medicine physician with a practice address in Mendon, Massachusetts, and NPI 1619123205, issued on Aug 14, 2008. Check the license (Massachusetts 243757, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Deborah S. Derderian
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 243757 MA
233213 MA
Self-reported in NPPES; status is on the state search - Practice location
- 12 Uxbridge Road, Mendon, MA 01756
- Phone
- (508) 634-6620
- Enumerated
- Aug 14, 2008
- Record last updated
- Nov 21, 2025
- Fax
- (508) 634-6813
- Medicare enrollment
- Enrolled (PECOS I20101207001212); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 12 Uxbridge Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathryn Cohan, M.D.Internal Medicine Physician1174554067
Verify Deborah S. Derderian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 243757Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,555 Medicare Part D claims for 252 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Atorvastatin Calcium228 claims
- Lisinopril141 claims
- Levothyroxine Sodium140 claims
- Losartan Potassium134 claims
- Amlodipine Besylate112 claims
- Hydrochlorothiazide102 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: $104.93
5 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- Milford Regional Physician Group, Inc.Milford, MA
- Umass Memorial Medical Group IncMendon, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Deborah S. Derderian among 6,825 internal medicine physician records in Massachusetts
Deborah S. Derderian, D.O. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2007 · median 2004 among the 4,103 with a school on file
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 internal medicine physician records list a practice address in Mendon
They are 3 of the 38 NPPES records with a practice address in Mendon, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Mendon → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kathryn Cohan, M.D.Mendon, MA 017561174554067
- Tarek El Sharkawy, MDMendon, MA 017561275586851
- Emmett Clemente, M.D.Milford, MA 017571699790709
- Faheem Farooq, MDMilford, MA 017571891722419
- Eugene Jagella, M.D.Milford, MA 017571992794549
- Michael Jolie, M.D.Milford, MA 017571760408827
- Joan Karl, M.D.Milford, MA 017571316943061
- Colleen Murphy, M.D.Milford, MA 017571942235098
Common questions
What is Deborah S. Derderian, D.O.'s NPI number?
Deborah S. Derderian, D.O.'s National Provider Identifier (NPI) is 1619123205, issued on Aug 14, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Deborah S. Derderian, D.O. located?
The NPPES record lists a practice address at 12 Uxbridge Road, Mendon, MA, 01756. Phone: (508) 634-6620. Providers update this record themselves, so call before visiting.
How can I verify Deborah S. Derderian, D.O.'s license?
NPPES lists Massachusetts license number 243757, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Deborah S. Derderian, D.O. prescribe under Medicare Part D?
In 2024, Deborah S. Derderian, D.O. had 2,555 Medicare Part D claims for 252 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.