James Joseph Maciejewski, M.D.
Internal Medicine Physician · Naples, FL
James Joseph Maciejewski, M.D. is an internal medicine physician with a practice address in Naples, Florida, and NPI 1710204565, issued on May 3, 2010. Check the license (Florida ME121441, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- James Joseph Maciejewski
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- ME121441 FL
Self-reported in NPPES; status is on the state search - Practice location
- 6101 Pine Ridge RD, Naples, FL 34119
- Phone
- (239) 348-4101
- Enumerated
- May 3, 2010
- Record last updated
- Sep 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Also registered at 6101 Pine Ridge RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Pradeep Adhikari, M.D.Student in an Organized Health Care Education/Training Program1699612424
- Samreen Ahsan, P.T,Physical Therapist1528368867
- Arnold Alexander, M.DInternal Medicine Physician1780635201
- Myles Alpert, DOAnesthesiology Physician1730130196
Verify James Joseph Maciejewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME121441Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average internal medicine physician in 2024
5,150 Medicare Part D claims for 540 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 41 claims were for opioids.
Most prescribed
- Atorvastatin Calcium413 claims
- Amlodipine Besylate361 claims
- Levothyroxine Sodium233 claims
- Rosuvastatin Calcium216 claims
- Irbesartan202 claims
- Losartan Potassium192 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): 86.4 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: $369.30
19 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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.
James Joseph Maciejewski among 10,151 internal medicine physician records in Florida
James Joseph Maciejewski, M.D. is one of 10,151 internal medicine physician records with a practice address in Florida. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 58% of them.
- NPI issued2010 · 58% of these records are older, 39% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2020 · 48% 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 Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
208 internal medicine physician records list a practice address in Naples
They are 208 of the 5,950 NPPES records with a practice address in Naples, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Naples → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Arnold Alexander, M.DNaples, FL 341191780635201
- Manuel Delsol, MDNaples, FL 341191649278946
- Charlene Deluca, MDNaples, FL 341191093748279
- Clifford Greenberg, M.D.Naples, FL 341191366476632
- Nena Korunda, MDNaples, FL 341191154372399
- Betty Kupracz, MDNaples, FL 341191043315203
- Fritz Lemoine, M.D.Naples, FL 341191639251309
- Ida Mazzone, MDNaples, FL 341191043267644
Common questions
What is James Joseph Maciejewski, M.D.'s NPI number?
James Joseph Maciejewski, M.D.'s National Provider Identifier (NPI) is 1710204565, issued on May 3, 2010. An NPI identifies a provider in billing; it is not a license.
Where is James Joseph Maciejewski, M.D. located?
The NPPES record lists a practice address at 6101 Pine Ridge RD, Naples, FL, 34119. Phone: (239) 348-4101. Providers update this record themselves, so call before visiting.
How can I verify James Joseph Maciejewski, M.D.'s license?
NPPES lists Florida license number ME121441, as entered by the provider. 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 James Joseph Maciejewski, M.D. prescribe under Medicare Part D?
In 2024, James Joseph Maciejewski, M.D. had 5,150 Medicare Part D claims for 540 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is James Joseph Maciejewski, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.4 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.