Registry data as of Aug 27, 2026

Karl Horn, M.D.

Emergency Medicine Physician · Jacksonville, FL

Karl Horn, M.D. is an emergency medicine physician with a practice address in Jacksonville, Florida, and NPI 1790041689, issued on Apr 5, 2012. Check the license on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1790041689
Name
Karl Horn
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
Practice location
1401 Riverplace Blvd, Jacksonville, FL 32207
Phone
(803) 760-5488
Enumerated
Apr 5, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1401 Riverplace Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Luis Melendez, CFASurgical Assistant1023157203

Verify Karl Horn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license searchCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Florida license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

24% fewer Medicare Part D claims than the average emergency medicine physician in 2024

271 Medicare Part D claims for 178 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 26 claims were for opioids.

  1. Karl Horn271
  2. Specialty average355

Most prescribed

  1. Doxycycline Hyclate37 claims
  2. Cephalexin23 claims
  3. Amoxicillin-Clavulanate Potass16 claims
  4. Hydrocodone-Acetaminophen15 claims
  5. Ondansetron Hcl14 claims
  6. Prednisone13 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.

312 emergency medicine physician records list a Jacksonville practice address

They are 312 of the 24,194 NPPES records with a Jacksonville practice address, and 3,712 emergency medicine physician records in Florida.

Other emergency medicine physician records in Florida

  1. Rosemarie Abad, MDJacksonville, FL1124083134
  2. Neal Abarbanell, MDMiami, FL1659367142
  3. Danny Abbruzzese, MDSpring Hill, FL1972544039
  4. Ahmed Abd El Aziz, MDFort Lauderdale, FL1902472913
  5. Ahmed Abdelmagid, M.D.Macclenny, FL1184682049
  6. Eamon Abdullah, MDApopka, FL1780316307
  7. Ayman Abdulmagid, M.D.Clearwater, FL1558329458
  8. Mubarak Abdur-Rahman, MDJacksonville, FL1164861001
  9. Robert Abello, MDCoral Gables, FL1376589002
  10. Veronica AbelloMiami Beach, FL1154019651

Common questions

What is Karl Horn, M.D.'s NPI number?

Karl Horn, M.D.'s National Provider Identifier (NPI) is 1790041689, issued on Apr 5, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Karl Horn, M.D. located?

The NPPES record lists a practice address at 1401 Riverplace Blvd, Jacksonville, FL, 32207. Phone: (803) 760-5488. Providers update this record themselves, so call before visiting.

How can I verify Karl Horn, M.D.'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 Karl Horn, M.D. prescribe under Medicare Part D?

In 2024, Karl Horn, M.D. had 271 Medicare Part D claims for 178 beneficiaries; the average among emergency medicine physician prescribers was 355. 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.