Matthew Adam Klein
Internal Medicine Physician · Jacksonville, FL
Matthew Adam Klein is an internal medicine physician with a practice address in Jacksonville, Florida, and NPI 1255181806, issued on Mar 26, 2024. Check the license (Florida TRN40304, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Matthew Adam Klein
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- TRN40304 FL
Self-reported in NPPES; status is on the state search - Practice location
- 4500 San Pablo RD S, Jacksonville, FL 32224
- Phone
- (904) 953-2000
- Enumerated
- Mar 26, 2024
- Record last updated
- Oct 21, 2024
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Also registered at 4500 San Pablo RD S
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Verify Matthew Adam Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license TRN40304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
38 Medicare Part D claims for 21 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Matthew Adam Klein among 10,151 internal medicine physician records in Florida
Matthew Adam Klein 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 2024, is newer than 98% of them.
- NPI issued2024 · 98% of these records are older, 1% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2024 · 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).
546 internal medicine physician records list a practice address in Jacksonville
They are 546 of the 24,194 NPPES records with a practice address in Jacksonville, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Jacksonville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sharon Gerlach, M.D.Jacksonville, FL 322241578552204
- Helen Jorn, MDJacksonville, FL 322241083603716
- Francois Lette, M.D.Jacksonville, FL 322241619966348
- Daniel Macklin, MDJacksonville, FL 322241346239076
- Catherine Madaffari, MDJacksonville, FL 322241821095803
- Pedro Malavet, MDJacksonville, FL 322241255320982
- Kay Mitchell, M.D.Jacksonville, FL 322241154310886
- Ghada Mitri, MDJacksonville, FL 322241669466645
Common questions
What is Matthew Adam Klein's NPI number?
Matthew Adam Klein's National Provider Identifier (NPI) is 1255181806, issued on Mar 26, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Adam Klein located?
The NPPES record lists a practice address at 4500 San Pablo RD S, Jacksonville, FL, 32224. Phone: (904) 953-2000. Providers update this record themselves, so call before visiting.
How can I verify Matthew Adam Klein's license?
NPPES lists Florida license number TRN40304, 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 Matthew Adam Klein prescribe under Medicare Part D?
In 2024, Matthew Adam Klein had 38 Medicare Part D claims for 21 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.