NPPES file of Aug 9, 2026

Courtney Sanders Knapik, DMD

Dentist · Cambridge, MA

Courtney Sanders Knapik, DMD is a dentist with a practice address in Cambridge, Massachusetts, and NPI 1194173716, issued on May 25, 2016. Check the license (Massachusetts DN1857196, 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
1194173716
Name
Courtney Sanders Knapik
Credential
DMD
Primary taxonomy
Dentist 122300000X
License number
DN1857196 MA
Self-reported in NPPES; status is on the state search
Practice location
77 Hurley St, Cambridge, MA 02141
Phone
(617) 491-1403
Enumerated
May 25, 2016
Record last updated
Jun 18, 2025
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 77 Hurley St

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

  1. Edward Hou, DMDGeneral Practice Dentistry1659120681
  2. Sonya Joseph, DMDGeneral Practice Dentistry1639662778
  3. Hyunah Lee, DMDDentist1851842231
  4. Jennifer Zysk, D.M.D.Dentist1689010530

Verify Courtney Sanders Knapik 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 DN1857196
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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76% fewer Medicare Part D claims than the average dentist in 2024

21 Medicare Part D claims for 15 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. Courtney Knapik21
  2. Specialty average86

Most prescribed

  1. Amoxicillin12 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.

Courtney Sanders Knapik among 2,934 dentist records in Massachusetts

Courtney Sanders Knapik, DMD is one of 2,934 dentist 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 2016, is newer than 52% of them.

  • NPI issued2016 · 52% of these records are older, 43% 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 updated2025 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

60 dentist records list a practice address in Cambridge

They are 60 of the 5,145 NPPES records with a practice address in Cambridge, and 2,934 dentist records in Massachusetts.

The 8 dentist records with the nearest ZIP codes

  1. Jennifer Eitutis, DMDCambridge, MA 021411679868756
  2. Roozbeh Kashefi, D.M.D.Cambridge, MA 021411790997013
  3. John Keohan, DDSCambridge, MA 021411588783252
  4. Mustafa Khalil, D.D.S.Cambridge, MA 021411154474922
  5. Hyunah Lee, DMDCambridge, MA 021411851842231
  6. David MendelovitzCambridge, MA 021411376033936
  7. Jennifer Zysk, D.M.D.Cambridge, MA 021411689010530
  8. Leah BriscoeCambridge, MA 021421659119279

Common questions

What is Courtney Sanders Knapik, DMD's NPI number?

Courtney Sanders Knapik, DMD's National Provider Identifier (NPI) is 1194173716, issued on May 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Courtney Sanders Knapik, DMD located?

The NPPES record lists a practice address at 77 Hurley St, Cambridge, MA, 02141. Phone: (617) 491-1403. Providers update this record themselves, so call before visiting.

How can I verify Courtney Sanders Knapik, DMD's license?

NPPES lists Massachusetts license number DN1857196, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Courtney Sanders Knapik, DMD prescribe under Medicare Part D?

In 2024, Courtney Sanders Knapik, DMD had 21 Medicare Part D claims for 15 beneficiaries; the average among dentist prescribers was 86. 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.