William O Passarelli Iii, MD - Medicare Cardiovascular Disease (cardiology) in Pascagoula, MS

William O Passarelli Iii, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Pascagoula, Mississippi. He went to New York Medical College and graduated in 1991 and has 33 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Southern Ms Heart Center,pa and his current practice location is 4300 Hospital St Ste 102, Pascagoula, Mississippi. You can reach out to his office (for appointments etc.) via phone at (228) 762-1002.

William O Passarelli Iii is licensed to practice in Mississippi (license number MS17347) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1285653113.

Contact Information

William O Passarelli Iii, MD
4300 Hospital St Ste 102,
Pascagoula, MS 39581-5329
(228) 762-1002
Not Available

Map and Direction




Physician's Profile

Full NameWilliam O Passarelli Iii
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience33 Years
Location4300 Hospital St Ste 102, Pascagoula, Mississippi
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • William O Passarelli Iii attended and graduated from New York Medical College in 1991
  NPI Data:
  • NPI Number: 1285653113
  • Provider Enumeration Date: 07/19/2006
  • Last Update Date: 06/28/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0749345106
  • Enrollment ID: I20090218000371

Medical Identifiers

Medical identifiers for William O Passarelli Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285653113NPI-NPPES
0815455669MedicaidMS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease MS17347 (Mississippi)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Deaconess Homecare- Region 1Laurel, MSHome health agency
Singing River Health SystemPascagoula, MSHospital
Garden Park Medical CenterGulfport, MSHospital
Memorial Hospital At GulfportGulfport, MSHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southern Ms Heart Center,pa973917146312

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. William O Passarelli Iii allows following entities to bill medicare on his behalf.
Entity NameSouthern Ms Heart Center,pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306062641
PECOS PAC ID: 9739171463
Enrollment ID: O20040401000678
Entity NameMississippi Cardiovascular Center Of Excellence Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205561099
PECOS PAC ID: 4587048699
Enrollment ID: O20220908000951

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. William O Passarelli Iii is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
William O Passarelli Iii, MD
4300 Hospital St Ste 102,
Pascagoula, MS 39581-5329

Ph: (228) 762-1002
William O Passarelli Iii, MD
4300 Hospital St Ste 102,
Pascagoula, MS 39581-5329

Ph: (228) 762-1002

Reviews and Comments


Internal Medicine Doctors in Pascagoula, MS

Dr. Randy Roth, M.D.
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Practice Location: 2809 Denny Ave, Pascagoula, MS 39581
Phone: 228-809-5510    Fax: 228-809-5519
James Lee Harwell, MD
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Practice Location: 2809 Denny Ave, Pascagoula, MS 39581
Phone: 228-809-5510    Fax: 228-809-5519
Ediz Tasan, M.D.
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Practice Location: 4300 Hospital St Ste 102, Pascagoula, MS 39581
Phone: 228-762-1002    
Dr. Edgar Hull, M.D.
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Practice Location: 2809 Denny Ave, Pascagoula, MS 39581
Phone: 228-809-5000    
Olusola Isikalu, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 2712 Criswell Ave, Pascagoula, MS 39567
Phone: 228-762-0713    Fax: 228-762-0712
Hugo A Quintana, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 4211 Hospital St Ste 202, Pascagoula, MS 39581
Phone: 228-372-8270    Fax: 228-372-8270
Thomas E. Stevens Jr., MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2809 Denny Ave, Pascagoula, MS 39581
Phone: 228-809-5510    Fax: 228-809-5519

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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