David Knudtson, MD
Internal Medicine Physician · Naples, FL
David Knudtson, MD is an internal medicine physician with a practice address in Naples, Florida, and NPI 1558420323, issued on Dec 7, 2006. Check the license on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- David Knudtson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 6635 Hillway Cir Ste 400, Naples, FL 34112
- Phone
- (239) 455-9550
- Enumerated
- Dec 7, 2006
- Entity
- Type 1 · individual
Also registered at 6635 Hillway Cir Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Knudtson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license searchCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.9 times the Medicare Part D claims of the average internal medicine physician in 2024
10,752 Medicare Part D claims for 1,151 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium793 claims
- Rosuvastatin Calcium772 claims
- Levothyroxine Sodium585 claims
- Amlodipine Besylate521 claims
- Lisinopril438 claims
- Losartan Potassium378 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: $1,055.22
55 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 65,274 providers of this specialty with any payment received $2,536.66 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.
One hospital or facility affiliation
- Millennium Physician Group LLCNaples, FL
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
241 internal medicine physician records list a Naples practice address
They are 241 of the 5,950 NPPES records with a Naples practice address, and 11,290 internal medicine physician records in Florida.
All 241 in Naples → All 11,290 in Florida → Every provider in Naples →
Other internal medicine physician records in Florida
- Hayden Aaron, M.D.West Palm Beach, FL1144273970
- Abiedu Abaaba, M.D.Jacksonville, FL1811192388
- Kashif Abad, M.D.West Palm Beach, FL1518405075
- Jose Abando, MDDaytona Beach, FL1225101058
- Ismeth Abbas, M.D.Jacksonville, FL1245328020
- Sarah AbbasWeston, FL1023864154
- Nuzhat Abbasi, MDNorth Miami Beach, FL1184655466
- Aamer Abbass, MDFort Myers, FL1689081119
- Tony Abbassi, MDMiami, FL1679589188
- Ali Abbood, MDOrlando, FL1750886974
Common questions
What is David Knudtson, MD's NPI number?
David Knudtson, MD's National Provider Identifier (NPI) is 1558420323, issued on Dec 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Knudtson, MD located?
The NPPES record lists a practice address at 6635 Hillway Cir Ste 400, Naples, FL, 34112. Phone: (239) 455-9550. Providers update this record themselves, so call before visiting.
How can I verify David Knudtson, MD's license?
Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Knudtson, MD prescribe under Medicare Part D?
In 2024, David Knudtson, MD had 10,752 Medicare Part D claims for 1,151 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.