Karen Lynn Madruga, DMD
General Practice Dentistry · Southborough, MA
Karen Lynn Madruga, DMD is a general practice dentistry with a practice address in Southborough, Massachusetts, and NPI 1568597011, issued on Feb 23, 2007. Check the license (Massachusetts 19749, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Lynn Madruga
- Credential
- DMD
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 19749 MA
Self-reported in NPPES; status is on the state search - Practice location
- 11 Main St, Southborough, MA 01772
- Phone
- (508) 481-6100
- Enumerated
- Feb 23, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 3,489 in Massachusetts → Look up another NPI →
Also registered at 11 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- William Egan, DMDDentist1417930371
- Andrew Zaterka, DMDDentist1154304319
Verify Karen Lynn Madruga in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 19749Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average general practice dentistry in 2024
24 Medicare Part D claims for 20 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Karen Lynn Madruga among 3,489 general practice dentistry records in Massachusetts
Karen Lynn Madruga, DMD is one of 3,489 general practice dentistry records with a practice address in Massachusetts. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 37% of them.
- NPI issued2007 · 37% of these records are older, 41% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 general practice dentistry records list a practice address in Southborough
They are 4 of the 481 NPPES records with a practice address in Southborough, and 3,489 general practice dentistry records in Massachusetts.
All 3,489 in Massachusetts → Every provider in Southborough → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Michael Monopoli, DMDSouthborough, MA 017721467584235
- Gitika Satpathy, DMDSouthborough, MA 017721386377562
- Richard Silver, D.D.S.Southborough, MA 017721013017599
- Thomas Bjornson, DMDLincoln, MA 017731902937493
- Lily Ling, DMDSherborn, MA 017701083813356
- Joan Qureshi, DMDSherborn, MA 017701891831392
- Margaret Klepacz, DDSStow, MA 017751073572517
- Eric Kraus, D.D.S.Stow, MA 017751194735068
Common questions
What is Karen Lynn Madruga, DMD's NPI number?
Karen Lynn Madruga, DMD's National Provider Identifier (NPI) is 1568597011, issued on Feb 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karen Lynn Madruga, DMD located?
The NPPES record lists a practice address at 11 Main St, Southborough, MA, 01772. Phone: (508) 481-6100. Providers update this record themselves, so call before visiting.
How can I verify Karen Lynn Madruga, DMD's license?
NPPES lists Massachusetts license number 19749, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Lynn Madruga, DMD prescribe under Medicare Part D?
In 2024, Karen Lynn Madruga, DMD had 24 Medicare Part D claims for 20 beneficiaries; the average among general practice dentistry prescribers was 83. 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.