Dr William Mazzei Iii, MD - Medicare Family Practice in Deerfield Beach, FL

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Dr William Mazzei Iii, MD is a medicare enrolled "Family Medicine" physician in Deerfield Beach, Florida. He went to University Of South Florida College Of Medicine and graduated in 1994 and has 31 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Estrella Health Medical Center Inc and his current practice location is 220 Sw Natura Ave, Deerfield Beach, Florida. You can reach out to his office (for appointments etc.) via phone at (954) 360-7000.

Dr William Mazzei Iii is licensed to practice in Florida (license number ME69564) 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 1972586501.

Contact Information

Dr William Mazzei Iii, MD
220 Sw Natura Ave,
Deerfield Beach, FL 33441-3026
(954) 360-7000
(305) 403-7700

Map and Direction




Physician's Profile

Full NameDr William Mazzei Iii
GenderMale
SpecialityFamily Practice
Experience31 Years
Location220 Sw Natura Ave, Deerfield Beach, Florida
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:
  • Dr William Mazzei Iii attended and graduated from University Of South Florida College Of Medicine in 1994
  NPI Data:
  • NPI Number: 1972586501
  • Provider Enumeration Date: 11/29/2005
  • Last Update Date: 02/25/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2365345063
  • Enrollment ID: I20040129001121

Medical Identifiers

Medical identifiers for Dr William Mazzei Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972586501NPI-NPPES
26905510MedicaidFL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine ME69564 (Florida)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Estrella Health Medical Center Inc00426913622

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. Dr William Mazzei Iii allows following entities to bill medicare on his behalf.
Entity NameMd Now Medical Centers Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033195474
PECOS PAC ID: 3971554825
Enrollment ID: O20050208000625
Entity NameHillsboro Allergy & Family Medicine Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770778516
PECOS PAC ID: 2769414432
Enrollment ID: O20050901000636
Entity NameExpress Docs, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518309434
PECOS PAC ID: 1153557053
Enrollment ID: O20140827002835
Entity NameL & L Social Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225538689
PECOS PAC ID: 4688082803
Enrollment ID: O20210427002996
Entity NameEstrella Health Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710576988
PECOS PAC ID: 0042691362
Enrollment ID: O20220718003850
Entity NameProhealth Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164086815
PECOS PAC ID: 1254862741
Enrollment ID: O20241008004010
Entity NameVitality Palace Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568298636
PECOS PAC ID: 7517480676
Enrollment ID: O20250328002668

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. Dr William Mazzei 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
Dr William Mazzei Iii, MD
220 Sw Natura Ave,
Deerfield Beach, FL 33441-3026

Ph: (954) 360-7000		Dr William Mazzei Iii, MD
220 Sw Natura Ave,
Deerfield Beach, FL 33441-3026

Ph: (954) 360-7000

Reviews and Comments


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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.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.