Donna C. Knowlton, DDS
General Practice Dentistry · New York, NY
Donna C. Knowlton, DDS is a general practice dentistry with a practice address in New York, New York, and NPI 1558396671, issued on Jul 11, 2006. Check the license (New York 051750, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Donna C. Knowlton
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License numbers
- 051750 NY
8025 NC
Self-reported in NPPES; status is on the state search - Practice location
- 345 E 24TH St, New York, NY 10010
- Phone
- (212) 998-9454
- Enumerated
- Jul 11, 2006
- Record last updated
- May 16, 2022
- Medicaid ID
- 5901858 NC
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 7,828 in New York → Look up another NPI →
Also registered at 345 E 24TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aditi Reddy AalatiStudent in an Organized Health Care Education/Training Program1790645729
- Ronna Abaeyv, DDSOrthodontics and Dentofacial Orthopedics Dentistry1831972157
- David Abayev, DDSStudent in an Organized Health Care Education/Training Program1114605391
- Jacob AbayevStudent in an Organized Health Care Education/Training Program1851269997
- Kenzy AbbasStudent in an Organized Health Care Education/Training Program1437013182
- Youssef Abdel-AzizeDentist1700536240
Verify Donna C. Knowlton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 051750Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average general practice dentistry in 2024
43 Medicare Part D claims for 29 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin19 claims
- Ibuprofen15 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.
Donna C. Knowlton among 7,828 general practice dentistry records in New York
Donna C. Knowlton, DDS is one of 7,828 general practice dentistry records with a practice address in New York. 60% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 65% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2022 · 79% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,248 general practice dentistry records list a practice address in New York
They are 1,248 of the 98,468 NPPES records with a practice address in New York, and 7,828 general practice dentistry records in New York.
All 7,828 in New York → Every provider in New York → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Robert Bass, D.M.DNew York, NY 100101508889759
- Siv Chhay, DDSNew York, NY 100101013024538
- Kevin Heaney, DDSNew York, NY 100101760449110
- Harvey Katz, DDSNew York, NY 100101336267079
- Yoojin Kim, DDSNew York, NY 100101417069758
- Billy Kyles, D.D.S.New York, NY 100101205831633
- Clara Lee, DDSNew York, NY 100101447249792
- Keith Marshall, D.D.S.New York, NY 100101902996242
Common questions
What is Donna C. Knowlton, DDS's NPI number?
Donna C. Knowlton, DDS's National Provider Identifier (NPI) is 1558396671, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donna C. Knowlton, DDS located?
The NPPES record lists a practice address at 345 E 24TH St, New York, NY, 10010. Phone: (212) 998-9454. Providers update this record themselves, so call before visiting.
How can I verify Donna C. Knowlton, DDS's license?
NPPES lists New York license number 051750, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Donna C. Knowlton, DDS prescribe under Medicare Part D?
In 2024, Donna C. Knowlton, DDS had 43 Medicare Part D claims for 29 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.