Karen Lartin, D.D.S.
Dentist · Williamstown, MA
Karen Lartin, D.D.S. is a dentist with a practice address in Williamstown, Massachusetts, and NPI 1124203625, issued on Jan 2, 2008. Check the license (Massachusetts 20421, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Lartin
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 20421 MA
Self-reported in NPPES; status is on the state search - Practice location
- 279 Main St, Williamstown, MA 01267
- Phone
- (413) 458-1714
- Enumerated
- Jan 2, 2008
- Record last updated
- Feb 12, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,934 in Massachusetts → Look up another NPI →
Verify Karen Lartin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 20421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average dentist in 2024
24 Medicare Part D claims for 16 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin18 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 Lartin among 2,934 dentist records in Massachusetts
Karen Lartin, D.D.S. 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 2008, is newer than 23% of them.
- NPI issued2008 · 23% of these records are older, 71% 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 updated2013 · 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).
Dentist providers in Massachusetts
There are 2,934 dentist records in Massachusetts.
All 2,934 in Massachusetts → Every provider in Williamstown → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Gary Delair, DDSStockbridge, MA 012621053372789
- Robert Edwards, DDSStockbridge, MA 012621225099955
- Jehad Abdelgader, DLLNorth Adams, MA 012471841027158
- Usama AbdullahiNorth Adams, MA 012471427980077
- Vaishali BalyanNorth Adams, MA 012471417725474
- Ralph Blanchard, DDSNorth Adams, MA 012471750324331
- Alejandro CastilloNorth Adams, MA 012471689321176
- Jenny Citrin, DMDNorth Adams, MA 012471003235268
Common questions
What is Karen Lartin, D.D.S.'s NPI number?
Karen Lartin, D.D.S.'s National Provider Identifier (NPI) is 1124203625, issued on Jan 2, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Karen Lartin, D.D.S. located?
The NPPES record lists a practice address at 279 Main St, Williamstown, MA, 01267. Phone: (413) 458-1714. Providers update this record themselves, so call before visiting.
How can I verify Karen Lartin, D.D.S.'s license?
NPPES lists Massachusetts license number 20421, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Lartin, D.D.S. prescribe under Medicare Part D?
In 2024, Karen Lartin, D.D.S. had 24 Medicare Part D claims for 16 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.