Kenneth Wayne Donovan, M.D.
Internal Medicine Physician · Essex, CT
Kenneth Wayne Donovan, M.D. is an internal medicine physician with a practice address in Essex, Connecticut, and NPI 1669447207, issued on Feb 17, 2006. Check the license (Connecticut 042916, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kenneth Wayne Donovan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 042916 CT
MD12478 RI
Self-reported in NPPES; status is on the state search - Practice location
- 35 Saybrook RD, Essex, CT 06426
- Phone
- (860) 358-3725
- Enumerated
- Feb 17, 2006
- Record last updated
- Dec 11, 2025
- Fax
- (860) 358-3726
- Medicaid ID
- 001429168 CT
- Medicare enrollment
- Enrolled (PECOS I20080318000712); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 35 Saybrook RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michaela RussellNurse Practitioner1124736988
Verify Kenneth Wayne Donovan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 042916Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
163 Medicare Part D claims for 37 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Amlodipine Besylate11 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.
Bills Medicare through 2 group practices
- Hospital Medicine Associates LLCWesterly, RI
- Mhs Primary Care, Inc.Essex, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth Wayne Donovan among 2,623 internal medicine physician records in Connecticut
Kenneth Wayne Donovan, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1997 · median 2004 among the 1,646 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 internal medicine physician records list a practice address in Essex
They are 9 of the 208 NPPES records with a practice address in Essex, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Essex → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Elizabeth Coric, MDEssex, CT 064261730122003
- Peter Dixon, M.D.Essex, CT 064261578750808
- Earl Hornbake, MDEssex, CT 064261770584906
- Meredith Lindner, DOEssex, CT 064261942616826
- Ewa Ruggieri, M.D.Essex, CT 064261447203393
- Alan Spagnola, M.D.Essex, CT 064261023032208
- Timothy Tobin, MDEssex, CT 064261184669566
- Christa Wittmann, DOEssex, CT 064261962726729
Common questions
What is Kenneth Wayne Donovan, M.D.'s NPI number?
Kenneth Wayne Donovan, M.D.'s National Provider Identifier (NPI) is 1669447207, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Wayne Donovan, M.D. located?
The NPPES record lists a practice address at 35 Saybrook RD, Essex, CT, 06426. Phone: (860) 358-3725. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Wayne Donovan, M.D.'s license?
NPPES lists Connecticut license number 042916, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kenneth Wayne Donovan, M.D. prescribe under Medicare Part D?
In 2024, Kenneth Wayne Donovan, M.D. had 163 Medicare Part D claims for 37 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.