NPPES file of Aug 9, 2026

John A. Masson, M.D.

Pulmonary Disease Physician · Clearwater, FL

John A. Masson, M.D. is a pulmonary disease physician with a practice address in Clearwater, Florida, and NPI 1134100605, issued on Nov 10, 2005. Check the license (Florida ME84169, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134100605
Name
John A. Masson
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
ME84169 FL
Self-reported in NPPES; status is on the state search
Practice location
430 Morton Plant St, Clearwater, FL 33756
Phone
(727) 443-0611
Enumerated
Nov 10, 2005
Record last updated
May 19, 2026
Fax
(727) 461-5493
Medicaid ID
265774100 FL
Medicare enrollment
Enrolled (PECOS I20101015000315); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest pulmonary disease physician records → All 1,045 in Florida → Look up another NPI →

Also registered at 430 Morton Plant St

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

  1. Andres Anais, PASurgical Physician Assistant1568645208
  2. Michael Andriola, M.D.Neurology Physician1144279985
  3. Ajay Arora, M.D.Neurology Physician1306895149
  4. Craig Barkley, M.D.Urology Physician1831189448
  5. Shannon Barsema, PHDClinical Neuropsychologist1104180280
  6. Ann Bigatel-WykoffPediatric Occupational Therapist1598990830

Verify John A. Masson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME84169    Check 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

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24% more Medicare Part D claims than the average pulmonary disease physician in 2024

1,766 Medicare Part D claims for 268 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 66% of claims.

  1. John Masson1,766
  2. Specialty average1,425

Most prescribed

  1. Trelegy Ellipta289 claims
  2. Albuterol Sulfate Hfa214 claims
  3. Prednisone112 claims
  4. Stiolto Respimat104 claims
  5. Anoro Ellipta82 claims
  6. Ofev77 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.

Industry payments in 2024: $1,272.20

47 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Masson$1,272.20
  2. Specialty average$5,159.88

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Bay Area Chest Physicians P AClearwater, FL
  2. Baycare Medical Group, Inc.Clearwater, FL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John A. Masson among 1,045 pulmonary disease physician records in Florida

John A. Masson, M.D. is one of 1,045 pulmonary disease physician records with a practice address in Florida. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1996 · median 1999 among the 790 with a school on file
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Florida

There are 1,045 pulmonary disease physician records in Florida.

All 1,045 in Florida → Every provider in Clearwater → Pulmonary Disease Physician nationwide →

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Alfonso Castro, MDClearwater, FL 337561649472069
  2. Dennis College, M.D.Clearwater, FL 337561285630806
  3. Shea Eckardt, M.D.Clearwater, FL 337561730363912
  4. Eli Freilich, M.D.Clearwater, FL 337561477534303
  5. Eli Gavi, M.D.Clearwater, FL 337561609049980
  6. Sanjiva Lutchmedial, MD.Clearwater, FL 337561033379649
  7. Lucas Mikulic, MDClearwater, FL 337561093998742
  8. Jeramy Mosburg, D.O.Clearwater, FL 337561417108291

Common questions

What is John A. Masson, M.D.'s NPI number?

John A. Masson, M.D.'s National Provider Identifier (NPI) is 1134100605, issued on Nov 10, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John A. Masson, M.D. located?

The NPPES record lists a practice address at 430 Morton Plant St, Clearwater, FL, 33756. Phone: (727) 443-0611. Providers update this record themselves, so call before visiting.

How can I verify John A. Masson, M.D.'s license?

NPPES lists Florida license number ME84169, 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 John A. Masson, M.D. prescribe under Medicare Part D?

In 2024, John A. Masson, M.D. had 1,766 Medicare Part D claims for 268 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.