John Masson, M.D.
NPI 1134100605 · Pulmonary Disease Physician · Clearwater, FL
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Masson, M.D. is a Pulmonary Disease Physician provider in Clearwater, FL (NPI 1134100605).
Provider details
- NPI number
- 1134100605
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME84169 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,780 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 348 | $124 |
| Critical Care, First 30-74 Minutes99291 | 338 | $206 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 241 | $115 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 165 | $52 |
| Test to Determine Lung Volumes Using Sensors94726 | 158 | $52 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 149 | $36 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 289 | 61 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 214 | 80 |
| Prednisone | 112 | 39 |
| Tiotropium Br/Olodaterol Hclbrand: Stiolto Respimat | 104 | 26 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 82 | 18 |
| Nintedanib Esylatebrand: Ofev | 77 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,272 across 47 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 430 Morton Plant St Ste 210Clearwater, FL 33756-3396Phone: (727) 443-0611Fax: (727) 461-5493
Registry dates
- Enumerated
- 2005-11-10
- Last updated
- 2026-05-19
- Certified
- 2026-05-19
Frequently asked questions
- What is John Masson's NPI number?
- John Masson's National Provider Identifier (NPI) is 1134100605, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Masson's specialty?
- John Masson is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Masson located?
- John Masson's practice location on file with NPPES is 430 Morton Plant St, Clearwater, FL 33756-3398.
- What is John Masson's phone number?
- The practice phone number listed in the NPPES registry for John Masson is (727) 443-0611.
- Does John Masson accept Medicare?
- John Masson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Masson's NPI active?
- Yes — John Masson's NPI (1134100605) is active in the NPPES registry as of the last update on 2026-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.