NPPES file of Aug 9, 2026

Sathiyanathan Nadarajah, D.M.D.

Periodontics · Eldersburg, MD

Sathiyanathan Nadarajah, D.M.D. is a periodontics with a practice address in Eldersburg, Maryland, and NPI 1245329523, issued on Oct 12, 2006. Check the license (Maryland 12461, as entered in NPPES) with the Maryland 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
1245329523
Name
Sathiyanathan Nadarajah
Credential
D.M.D.
Primary taxonomy
Periodontics 1223P0300X
License number
12461 MD
Self-reported in NPPES; status is on the state search
Practice location
1425 Liberty RD, Eldersburg, MD 21784
Phone
(410) 552-4626
Enumerated
Oct 12, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(410) 552-1276
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1425 Liberty RD

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

  1. Catherine Bonny, LCSW-CMental Health Counselor1598780348
  2. Erich Bonny, LCSW-CMental Health Counselor1497779193
  3. Tina Buck, LCPCMental Health Counselor1730633900
  4. Holly Chalk, PHDPsychologist1174853253
  5. Mario Conliffe, M.S.Professional Counselor1144672833
  6. Holly Dawsey, LCSW-CMental Health Counselor1417061235

Verify Sathiyanathan Nadarajah in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 12461
    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 Maryland license search

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92% fewer Medicare Part D claims than the average periodontics in 2024

23 Medicare Part D claims, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Sathiyanathan Nadarajah23
  2. Specialty average277

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.

Sathiyanathan Nadarajah among 167 periodontics records in Maryland

Sathiyanathan Nadarajah, D.M.D. is one of 167 periodontics records with a practice address in Maryland. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 69% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Periodontics providers in Maryland

There are 167 periodontics records in Maryland.

The 8 periodontics records with the nearest ZIP codes

  1. Greg Felthousen, DDS, MSSalisbury, MD 218011417979733
  2. Beverly Glass, DMDSalisbury, MD 218011548385677
  3. Debra Welsh, DDSSalisbury, MD 218041497832638
  4. Fred Bye, D.D.S, M.S.Hagerstown, MD 217421013222389
  5. John Nitzell, DDSHagerstown, MD 217421912040080
  6. Bruce Winter, DDSHagerstown, MD 217421316082183
  7. Lisa Shoff, DMDFrederick, MD 217031275824732
  8. John Golski, D.D.S.Frederick, MD 217021285859611

Common questions

What is Sathiyanathan Nadarajah, D.M.D.'s NPI number?

Sathiyanathan Nadarajah, D.M.D.'s National Provider Identifier (NPI) is 1245329523, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sathiyanathan Nadarajah, D.M.D. located?

The NPPES record lists a practice address at 1425 Liberty RD, Eldersburg, MD, 21784. Phone: (410) 552-4626. Providers update this record themselves, so call before visiting.

How can I verify Sathiyanathan Nadarajah, D.M.D.'s license?

NPPES lists Maryland license number 12461, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Sathiyanathan Nadarajah, D.M.D. prescribe under Medicare Part D?

In 2024, Sathiyanathan Nadarajah, D.M.D. had 23 Medicare Part D claims; the average among periodontics prescribers was 277. 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.