Kenneth Frank Guarnieri, M.D.
Internal Medicine Physician · Webster, MA
Kenneth Frank Guarnieri, M.D. is an internal medicine physician with a practice address in Webster, Massachusetts, and NPI 1679547830, issued on Feb 15, 2006. Check the license (Massachusetts 70743, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kenneth Frank Guarnieri
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 70743 MA
Self-reported in NPPES; status is on the state search - Practice location
- 72 Cudworth RD, Webster, MA 01570
- Phone
- (508) 461-0011
- Enumerated
- Feb 15, 2006
- Record last updated
- Sep 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (508) 461-0010
- Medicare enrollment
- Enrolled (PECOS I20040218000664); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 72 Cudworth RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lindsey GirouxInternal Medicine Physician1619691045
- Krzysztof Kacprzak, M.D.Internal Medicine Physician1952364523
- Ishwara Sharma, M.D.Cardiovascular Disease Physician1912960741
- Sheena Sharma, M.D.Cardiovascular Disease Physician1417099185
Verify Kenneth Frank Guarnieri in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 70743Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average internal medicine physician in 2024
14,154 Medicare Part D claims for 684 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 842 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,140 claims
- Lisinopril665 claims
- Levothyroxine Sodium653 claims
- Omeprazole510 claims
- Metformin Hcl401 claims
- Oxycodone Hcl363 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.
The MIPS final score for 2023 (Medicare payment program): 94.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,910.41
189 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Inter Med Associates, P.C.Webster, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth Frank Guarnieri among 6,825 internal medicine physician records in Massachusetts
Kenneth Frank Guarnieri, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1986 · median 2004 among the 4,103 with a school on file
- Record last updated2010 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in Webster
They are 12 of the 190 NPPES records with a practice address in Webster, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Webster → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mark Davidson, M.D.Webster, MA 015701417948522
- Lindsey GirouxWebster, MA 015701619691045
- Piotr Grabias, M.D.Webster, MA 015701508847419
- Krzysztof Kacprzak, M.D.Webster, MA 015701952364523
- Dmitry Levenson, MDWebster, MA 015701588685671
- Thalia Madera, PAWebster, MA 015701942933254
- Gil Rohald, M.D.Webster, MA 015701740324730
- Beata Stancel-Grabias, M.D.Webster, MA 015701275514184
Common questions
What is Kenneth Frank Guarnieri, M.D.'s NPI number?
Kenneth Frank Guarnieri, M.D.'s National Provider Identifier (NPI) is 1679547830, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Frank Guarnieri, M.D. located?
The NPPES record lists a practice address at 72 Cudworth RD, Webster, MA, 01570. Phone: (508) 461-0011. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Frank Guarnieri, M.D.'s license?
NPPES lists Massachusetts license number 70743, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kenneth Frank Guarnieri, M.D. prescribe under Medicare Part D?
In 2024, Kenneth Frank Guarnieri, M.D. had 14,154 Medicare Part D claims for 684 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Kenneth Frank Guarnieri, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.