Registry data as of Aug 27, 2026

John Mershon, PA-C

Medical Physician Assistant · Jensen Beach, FL

John Mershon, PA-C is a medical physician assistant with a practice address in Jensen Beach, Florida, and NPI 1639541444, issued on Oct 20, 2015. 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
1639541444
Name
John Mershon
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
0010-12014 NC
Self-reported in NPPES; status is on the state search
Practice location
3405 NW Federal Hwy, Jensen Beach, FL 34957
Phone
(772) 692-8082
Enumerated
Oct 20, 2015
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.
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Also registered at 3405 NW Federal Hwy

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

  1. Jonathan Adelberg, M.D.Emergency Medicine Physician1225024417
  2. Catherine DentPhysician Assistant1710486915
  3. Joseph Karram, PA-CPhysician Assistant1639642507
  4. David Pavcik, ARNP FNP BCFamily Nurse Practitioner1013390798
  5. Amanda WalrathFamily Nurse Practitioner1912485103

Verify John Mershon 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.

80% fewer Medicare Part D claims than the average medical physician assistant in 2024

227 Medicare Part D claims for 160 beneficiaries, against an average of 1,139 among the 25,090 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 37 claims were for opioids.

  1. John Mershon227
  2. Specialty average1,139

Most prescribed

  1. Cephalexin24 claims
  2. Oxycodone-Acetaminophen18 claims
  3. Ondansetron Odt16 claims
  4. Hydrocodone-Acetaminophen13 claims
  5. Cefpodoxime Proxetil12 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.

One hospital or facility affiliation

  1. Wake Emergency Physicians PACary, NC

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.

Medical Physician Assistant providers in Florida

There are 2,877 medical physician assistant records in Florida.

Other medical physician assistant records in Florida

  1. Eden Abad, M.D.Marianna, FL1467706473
  2. Megan Abad, PA-CEnglewood, FL1629332242
  3. Jose Abay, PAMiami, FL1508918251
  4. Marissa Abdullaj, PA-CClearwater Fl, FL1447170451
  5. Aimee Abell, PAThe Villages, FL1720470305
  6. Kaitlin Abers, PA-CFort Lauderdale, FL1225432305
  7. Sara Aboud, PA-CJacksonville, FL1760293021
  8. Alan AbreuMiami, FL1114696176
  9. Jeffrey Abucay, PA-CMiami, FL1215186663
  10. Neveen AbuemaishBrandon, FL1740941079

Common questions

What is John Mershon, PA-C's NPI number?

John Mershon, PA-C's National Provider Identifier (NPI) is 1639541444, issued on Oct 20, 2015. An NPI identifies a provider in billing; it is not a license.

Where is John Mershon, PA-C located?

The NPPES record lists a practice address at 3405 NW Federal Hwy, Jensen Beach, FL, 34957. Phone: (772) 692-8082. Providers update this record themselves, so call before visiting.

How can I verify John Mershon, PA-C'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 John Mershon, PA-C prescribe under Medicare Part D?

In 2024, John Mershon, PA-C had 227 Medicare Part D claims for 160 beneficiaries; the average among medical physician assistant prescribers was 1,139. 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.