David W. Harder, PH.D.
Clinical Psychologist · Lincoln, MA
David W. Harder, PH.D. is a clinical psychologist with a practice address in Lincoln, Massachusetts, and NPI 1801973227, issued on Nov 1, 2006. Check the license (Massachusetts 2323, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- David W. Harder
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 2323 MA
Self-reported in NPPES; status is on the state search - Practice location
- 112 S Great RD, Lincoln, MA 01773
- Phone
- (781) 259-8122
- Enumerated
- Nov 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (781) 259-3739
- Medicare enrollment
- Enrolled (PECOS I20040729001063); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 3,185 in Massachusetts → Look up another NPI →
Also registered at 112 S Great RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah Greenwald, PH.D. CLINICAL PSYCHClinical Psychologist1588722557
Verify David W. Harder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 2323Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
David W. Harder among 3,185 clinical psychologist records in Massachusetts
David W. Harder, PH.D. is one of 3,185 clinical psychologist records with a practice address in Massachusetts. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 70% newer
- In a Medicare fileNo · 12% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated1975 · median 2000 among the 777 with a school on file
- Record last updated2007 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 clinical psychologist records list a practice address in Lincoln
They are 7 of the 76 NPPES records with a practice address in Lincoln, and 3,185 clinical psychologist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,185 in Massachusetts → Every provider in Lincoln → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Gina Arons, PSY.D.Lincoln, MA 017731871635375
- Olivier Barthelemy, PHDLincoln, MA 017731295533370
- Deborah Greenwald, PH.D. CLINICAL PSYCHLincoln, MA 017731588722557
- Eric Harris, ED.D., J.D.Lincoln, MA 017731396235503
- Margaret Ratiner, PHDLincoln, MA 017731053851592
- Ronald Siegel, PSY.D.Lincoln, MA 017731366401069
- Janet Couture (moschella), PSY.D.Southborough, MA 017721942448964
- Michelle Jaques-Leonard, PHDSouthborough, MA 017721598296063
Common questions
What is David W. Harder, PH.D.'s NPI number?
David W. Harder, PH.D.'s National Provider Identifier (NPI) is 1801973227, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David W. Harder, PH.D. located?
The NPPES record lists a practice address at 112 S Great RD, Lincoln, MA, 01773. Phone: (781) 259-8122. Providers update this record themselves, so call before visiting.
How can I verify David W. Harder, PH.D.'s license?
NPPES lists Massachusetts license number 2323, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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. 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.