Howard Alex Chang
Internal Medicine Physician · Jacksonville, FL
Howard Alex Chang is an internal medicine physician with a practice address in Jacksonville, Florida, and NPI 1720671407, issued on Feb 14, 2021. Check the license (Florida TRN37669, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Howard Alex Chang
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- TRN37669 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
- Feb 14, 2021
- Record last updated
- Jul 6, 2023
- 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 Howard Alex Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license TRN37669Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
15 Medicare Part D claims, 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.
Howard Alex Chang among 10,151 internal medicine physician records in Florida
Howard Alex Chang 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 2021, is newer than 89% of them.
- NPI issued2021 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2023 · 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 Howard Alex Chang's NPI number?
Howard Alex Chang's National Provider Identifier (NPI) is 1720671407, issued on Feb 14, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Howard Alex Chang 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 Howard Alex Chang's license?
NPPES lists Florida license number TRN37669, 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 Howard Alex Chang prescribe under Medicare Part D?
In 2024, Howard Alex Chang had 15 Medicare Part D claims; 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.