NPPES file of Aug 9, 2026

Patrick Shannon, D.M.D.

Periodontics · Cambridge, MA

Patrick Shannon, D.M.D. is a periodontics with a practice address in Cambridge, Massachusetts, and NPI 1184937682, issued on Jul 26, 2010. Check the license (Massachusetts DN1855517, 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
1184937682
Name
Patrick Shannon
Credential
D.M.D.
Primary taxonomy
Periodontics 1223P0300X
License number
DN1855517 MA
Self-reported in NPPES; status is on the state search
Practice location
1692 Massachusetts Ave, Cambridge, MA 02138
Phone
(617) 864-5444
Enumerated
Jul 26, 2010
Record last updated
Sep 14, 2016 (not updated in 10 years: call before relying on the address or phone)
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 1692 Massachusetts Ave

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

  1. Mark Derkazarian, D.M.D.Periodontics1841331097
  2. Steve Elbaz, DMDEndodontics1912188251
  3. Michael Joseph, DMDEndodontics1780838193
  4. Howard Levine, D.M.D.,P.C.Endodontics1295949683

Verify Patrick Shannon 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 DN1855517
    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

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8% fewer Medicare Part D claims than the average periodontics in 2024

255 Medicare Part D claims for 140 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D.

  1. Patrick Shannon255
  2. Specialty average277

Most prescribed

  1. Amoxicillin129 claims
  2. Chlorhexidine Gluconate92 claims
  3. Azithromycin16 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: $263.73

4 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona Inc. The 2,966 providers of this specialty with any payment received $1,338.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Patrick Shannon$263.73
  2. Specialty average$1,338.41

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

Patrick Shannon among 390 periodontics records in Massachusetts

Patrick Shannon, D.M.D. is one of 390 periodontics records with a practice address in Massachusetts. 54% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 61% of them.

  • NPI issued2010 · 61% of these records are older, 33% newer
  • In a Medicare fileYes · 54% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2016 · 81% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Periodontics providers in Massachusetts

There are 390 periodontics records in Massachusetts.

The 8 periodontics records with the nearest ZIP codes

  1. Mark Derkazarian, D.M.D.Cambridge, MA 021381841331097
  2. Frank Oppenheim, D.M.D., PH.D.Cambridge, MA 021381770770422
  3. Michael Palys, DMDCambridge, MA 021381194808683
  4. John Rusnock, DMDCambridge, MA 021381245296037
  5. Lorenzo TavelliCambridge, MA 021381295321297
  6. Morris Berdichevsky, DMDCambridge, MA 021391598961229
  7. Tannaz Shapurian, DMD, MSCambridge, MA 021391467535690
  8. Michael Cwiklinski, D.M.D.Cambridge, MA 021401699944058

Common questions

What is Patrick Shannon, D.M.D.'s NPI number?

Patrick Shannon, D.M.D.'s National Provider Identifier (NPI) is 1184937682, issued on Jul 26, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Patrick Shannon, D.M.D. located?

The NPPES record lists a practice address at 1692 Massachusetts Ave, Cambridge, MA, 02138. Phone: (617) 864-5444. Providers update this record themselves, so call before visiting.

How can I verify Patrick Shannon, D.M.D.'s license?

NPPES lists Massachusetts license number DN1855517, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Patrick Shannon, D.M.D. prescribe under Medicare Part D?

In 2024, Patrick Shannon, D.M.D. had 255 Medicare Part D claims for 140 beneficiaries; 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.