Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John A Masson, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1134100605

John A Masson, MD is a Pulmonary Disease in Clearwater, Florida. Qualified in 1996, 30 years ago. Practices with Baycare Medical Group, Inc, a 1,530-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
30
Licensed in
FL
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

430 Morton Plant St Ste 405
Clearwater, FL 33756-3398
Phone: (727) 443-0611
Fax: (727) 461-5493
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 430 Morton Plant St Ste 210, Clearwater, FL 33756-3396 — (727) 443-0611

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence ME84169 (FL)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence ME84169 (FL)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence ME84169 (FL)

Record details

NPI number1134100605
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 10, 2005
Last updated in NPPESMay 19, 2026
Certification dateMay 19, 2026
Mailing address430 Morton Plant St Ste 405, Clearwater, FL 33756-3394

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Baycare Medical Group, Inc. — 1530 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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