John D. Mainwaring, DDS
General Practice Dentistry · Orange, CT
John D. Mainwaring, DDS is a general practice dentistry with a practice address in Orange, Connecticut, and NPI 1922213206, issued on May 11, 2007. Check the license (Connecticut 005221, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John D. Mainwaring
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 005221 CT
Self-reported in NPPES; status is on the state search - Practice location
- 240 Indian River RD, Orange, CT 06477
- Phone
- (203) 799-6625
- Enumerated
- May 11, 2007
- Record last updated
- Apr 5, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 1,731 in Connecticut → Look up another NPI →
Also registered at 240 Indian River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Weverton DepaulaOptician1083022339
- Lauren Evanko, PHARMDPharmacist1649051707
- Murielle Exantus, NPAdult Health Nurse Practitioner1679070387
- Nasiha FahmiInternal Medicine Physician1629113980
Verify John D. Mainwaring in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 005221Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average general practice dentistry in 2024
93 Medicare Part D claims for 71 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Amoxicillin31 claims
- Clindamycin Hcl17 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.
John D. Mainwaring among 1,731 general practice dentistry records in Connecticut
John D. Mainwaring, DDS is one of 1,731 general practice dentistry records with a practice address in Connecticut. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 31% of them.
- NPI issued2007 · 31% of these records are older, 39% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2013 · 80% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 general practice dentistry records list a practice address in Orange
They are 9 of the 378 NPPES records with a practice address in Orange, and 1,731 general practice dentistry records in Connecticut.
All 1,731 in Connecticut → Every provider in Orange → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Dorota Brynda-Hansen, DDSOrange, CT 064771568609386
- Nicholas Calcaterra, DDSOrange, CT 064771164650826
- Carla Calcaterra, DDSOrange, CT 064771609004357
- Sandeep Jagini, DMDOrange, CT 064771427223486
- Irshad Mohammed, DDSOrange, CT 064771376733139
- James Orbon, DDSOrange, CT 064771851876247
- Gary Rappaport, DMDOrange, CT 064771154418531
- Yvonne Su, DDSOrange, CT 064771376806018
Common questions
What is John D. Mainwaring, DDS's NPI number?
John D. Mainwaring, DDS's National Provider Identifier (NPI) is 1922213206, issued on May 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John D. Mainwaring, DDS located?
The NPPES record lists a practice address at 240 Indian River RD, Orange, CT, 06477. Phone: (203) 799-6625. Providers update this record themselves, so call before visiting.
How can I verify John D. Mainwaring, DDS's license?
NPPES lists Connecticut license number 005221, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does John D. Mainwaring, DDS prescribe under Medicare Part D?
In 2024, John D. Mainwaring, DDS had 93 Medicare Part D claims for 71 beneficiaries; the average among general practice dentistry prescribers was 83. 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.