John Parnoff, D.M.D.
Periodontics · New Haven, CT
John Parnoff, D.M.D. is a periodontics with a practice address in New Haven, Connecticut, and NPI 1407939325, issued on Oct 23, 2006. Check the license (Connecticut 8139, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Parnoff
- Credential
- D.M.D.
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- 8139 CT
Self-reported in NPPES; status is on the state search - Practice location
- 419 Whalley Ave, New Haven, CT 06511
- Phone
- (203) 777-5385
- Enumerated
- Oct 23, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest periodontics records → All 117 in Connecticut → Look up another NPI →
Also registered at 419 Whalley Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Angelina Dabrowski, LPCCounselor1861049009
- Scott Giordano, LPCProfessional Counselor1396189551
- Denise GroumousasAddiction (Substance Use Disorder) Counselor1093273351
- Jesse Lamorte, LCSWClinical Social Worker1336555259
- Jose MontalvoAddiction (Substance Use Disorder) Counselor1902236854
Verify John Parnoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 8139Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average periodontics in 2024
768 Medicare Part D claims for 344 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. 45 claims were for opioids.
Most prescribed
- Amoxicillin316 claims
- Chlorhexidine Gluconate166 claims
- Amoxicillin-Clavulanate Potass68 claims
- Clindamycin Hcl55 claims
- Tramadol Hcl36 claims
- Azithromycin35 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.
Industry payments in 2024: $20.74
1 payment: food and beverage; the largest payer was Geistlich Pharma, North America, Inc. The 2,966 providers of this specialty with any payment received $1,338.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Parnoff among 117 periodontics records in Connecticut
John Parnoff, D.M.D. is one of 117 periodontics records with a practice address in Connecticut. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 64% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2007 · 85% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in Connecticut
There are 117 periodontics records in Connecticut.
All 117 in Connecticut → Every provider in New Haven → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- John Dean, D.D.S.New Haven, CT 065111386756658
- Ronald Delfini, D.D.S.New Haven, CT 065111093867913
- Michael Wiener, DDSNew Haven, CT 065111013053271
- Mark Braithwaite, D.D.S., M.A.West Haven, CT 065161326135880
- John Powe, DDSWest Haven, CT 065161699093351
- Brian Evans, DDSHamden, CT 065181487740650
- Milton Wallack, D.D.S.Hamden, CT 065181447266218
- Barry Weiss, D.M.D.Hamden, CT 065181750597340
Common questions
What is John Parnoff, D.M.D.'s NPI number?
John Parnoff, D.M.D.'s National Provider Identifier (NPI) is 1407939325, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Parnoff, D.M.D. located?
The NPPES record lists a practice address at 419 Whalley Ave, New Haven, CT, 06511. Phone: (203) 777-5385. Providers update this record themselves, so call before visiting.
How can I verify John Parnoff, D.M.D.'s license?
NPPES lists Connecticut license number 8139, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does John Parnoff, D.M.D. prescribe under Medicare Part D?
In 2024, John Parnoff, D.M.D. had 768 Medicare Part D claims for 344 beneficiaries; the average among periodontics prescribers was 277. 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.