Dr. Peter John Knowles , DMD
Dentist - General Practice • Avon, CT
20 West Avonrd.
Avon, CT 06001
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Peter Knowles is listed in NPPES under Dentist - General Practice.
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NPI assigned on July 5, 2006; this date does not establish years in practice.
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Published CMS data list 13 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Clinpro 5000 (Fluoride (Sodium)) — 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 36 in 2019 to 13 in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019–2023.
Practice Location & Contact Primary Location
20 West Avonrd.
Avon, CT 06001
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Dentist - General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
13 standardized 30-day fills in 2023
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$121 in 2023
The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023.
Open Payments general payments, program year 2021
All general payments: $94.99 across 2 records.
By nature of payment
- Entertainment: $83.56 across 1 record.
- Food and Beverage: $11.43 across 1 record.
Reporting-company totals
- Keystone Dental Inc.: $83.56 across 1 record.
- OraPharma, a division of Bausch Health US, LLC: $11.43 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2021 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Avon and Connecticut
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Knowles are from 2023.
18 active clinicians are listed under Dentist - General Practice with a practice address in Avon, CT (1,732 in Connecticut).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Avon
0% of these 18 clinicians have the CMS telehealth indicator.
0% of these 18 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 64% from 36 in 2019 to 13 in 2023.
- 2019: 36
- 2020: 45
- 2021: 44
- 2022: 35
- 2023: 13
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30-day fills
30-day fills decreased 64% from 36 in 2019 to 13 in 2023.
- 2019: 36
- 2020: 45
- 2021: 44
- 2022: 37
- 2023: 13
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Part D drug cost
Part D drug cost went from $141 in 2019 to $121 in 2023.
- 2019: $141
- 2020: $232
- 2021: $237
- 2022: $222
- 2023: $121
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $53.37 in 2019 to $94.99 in 2021.
- 2019: $53.37
- 2020: $79.05
- 2021: $94.99
Sources: CMS Medicare Part D Prescribers (2023), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $94.99.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Keystone Dental Inc. |
Entertainment
In-kind items and services
|
— | General | $83.56 |
| OraPharma, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
ARESTIN | General | $11.43 |
Source: CMS Open Payments, program year 2021, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Clinpro 5000 | Fluoride (Sodium) | 13 | 381 | $120.98 | — |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 1223G0001X
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dentist
Doctor of Dental Medicine
Dentist - General Practice
Doctor of Dental Medicine
Dentist - General Practice
Doctor of Dental Surgery
Career & Practice History
NPI enumerated July 05, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Dentist - General Practices in Avon
- Dr. Priya John, DMD
- Dr. Gregory Solof, DDS
- Dr. Eric Ruiz, DDS
- Dr. Sheldon Hausman, DMD
- Vance Harper
- Samantha Weston
Mailing Address
22 Morgan Pl
Unionville, CT 060851178
Phone: 8606734612