Donna M. Riddar, OTR/L
Occupational Therapist · South Dennis, MA
Donna M. Riddar, OTR/L is an occupational therapist with a practice address in South Dennis, Massachusetts, and NPI 1679858815, issued on Oct 19, 2011. Check the license (Massachusetts 4299, 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
- Donna M. Riddar
- Credential
- OTR/L
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- 4299 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Love LN, South Dennis, MA 02660
- Phone
- (508) 385-6034
- Enumerated
- Oct 19, 2011
- Record last updated
- Oct 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 3,585 in Massachusetts → Look up another NPI →
Also registered at 1 Love LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Gaudet, OTR/LOccupational Therapist1720560428
- Barbara HetheringtonPhysical Therapist1740765197
- Jennifer Kienstra, DPTPhysical Therapist1972098846
- Diane Sullivan, COTA/LOccupational Therapy Assistant1851972897
- Tessa Wisniewski, DPTPhysical Therapist1114573359
Verify Donna M. Riddar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 4299Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Donna M. Riddar among 3,585 occupational therapist records in Massachusetts
Donna M. Riddar, OTR/L is one of 3,585 occupational therapist records with a practice address in Massachusetts. 6% 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 2011, is newer than 32% of them.
- NPI issued2011 · 32% of these records are older, 65% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2011 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 occupational therapist records list a practice address in South Dennis
They are 2 of the 76 NPPES records with a practice address in South Dennis, and 3,585 occupational therapist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,585 in Massachusetts → Every provider in South Dennis → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Megan Gaudet, OTR/LSouth Dennis, MA 026601720560428
- Anita Tyler, OTR/LProvincetown, MA 026571619281342
- Eva Alessandra, OTRLSouth Yarmouth, MA 026641881712818
- Nancy Anderson, OTR/LSouth Yarmouth, MA 026641154654085
- Deirdre Andrews, OTR/LS Yarmouth, MA 026641427407147
- Sarah Avery, OTSouth Yarmouth, MA 026641780126102
- Joyce Geissler, OTD, OTR/L, CLTSouth Yarmouth, MA 026641124142823
- Brianna Landry, OTRSouth Yarmouth, MA 026641245726884
Common questions
What is Donna M. Riddar, OTR/L's NPI number?
Donna M. Riddar, OTR/L's National Provider Identifier (NPI) is 1679858815, issued on Oct 19, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Donna M. Riddar, OTR/L located?
The NPPES record lists a practice address at 1 Love LN, South Dennis, MA, 02660. Phone: (508) 385-6034. Providers update this record themselves, so call before visiting.
How can I verify Donna M. Riddar, OTR/L's license?
NPPES lists Massachusetts license number 4299, 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.