Ronald Demasi, M.D.
NPI 1528139086 · Specialist · Venice, FL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Demasi, M.D. is a Specialist provider in Venice, FL (NPI 1528139086).
Provider details
- NPI number
- 1528139086
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME0066068 (FL)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,858 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) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 1,229 | $48 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,011 | $128 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 700 | $62 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 321 | $167 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 221 | $151 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 517 | 212 |
| Omeprazole | 174 | 69 |
| Famotidine | 149 | 66 |
| Mesalamine | 93 | 27 |
| Budesonidebrand: Budesonide Dr | 70 | 32 |
| Linaclotidebrand: Linzess | 64 | 19 |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 41 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,977 across 48 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
Registry dates
- Enumerated
- 2006-11-13
- Last updated
- 2013-12-23
Frequently asked questions
- What is Ronald Demasi's NPI number?
- Ronald Demasi's National Provider Identifier (NPI) is 1528139086, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Demasi's specialty?
- Ronald Demasi is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Ronald Demasi located?
- Ronald Demasi's practice location on file with NPPES is 1370 E Venice Ave, Venice, FL 34285-9082.
- What is Ronald Demasi's phone number?
- The practice phone number listed in the NPPES registry for Ronald Demasi is (941) 584-6272.
- Does Ronald Demasi accept Medicare?
- Ronald Demasi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Demasi's NPI active?
- Yes — Ronald Demasi's NPI (1528139086) is active in the NPPES registry as of the last update on 2013-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.