William Passarelli, MD
NPI 1285653113 · Cardiovascular Disease Physician · Pascagoula, MS
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Passarelli, MD is a Cardiovascular Disease Physician provider in Pascagoula, MS (NPI 1285653113).
Provider details
- NPI number
- 1285653113
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MS17347 (MS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
8,400 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, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 1,225 | $55 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 1,071 | $42 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 940 | $121 |
| 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 | 638 | $42 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 573 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 688 | 255 |
| Atorvastatin Calcium | 685 | 239 |
| Amlodipine Besylate | 651 | 214 |
| Apixabanbrand: Eliquis | 462 | 113 |
| Carvedilol | 383 | 118 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 375 | 127 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,319 across 68 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
- 2006-07-19
- Last updated
- 2021-06-28
- Certified
- 2021-06-28
Frequently asked questions
- What is William Passarelli's NPI number?
- William Passarelli's National Provider Identifier (NPI) is 1285653113, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Passarelli's specialty?
- William Passarelli is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Passarelli located?
- William Passarelli's practice location on file with NPPES is 4300 Hospital St Ste 102, Pascagoula, MS 39581-5329.
- What is William Passarelli's phone number?
- The practice phone number listed in the NPPES registry for William Passarelli is (228) 762-1002.
- Does William Passarelli accept Medicare?
- William Passarelli is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Passarelli's NPI active?
- Yes — William Passarelli's NPI (1285653113) is active in the NPPES registry as of the last update on 2021-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.