Dr Mark Gerard Byrne, MD - Medicare Cardiovascular Disease (cardiology) in Watsonville, CA

Dr Mark Gerard Byrne, MD is a medicare enrolled "Internal Medicine - Interventional Cardiology" physician in Watsonville, California. He went to Illinois Medical College and graduated in 1989 and has 35 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Brennan Medical Corporation and his current practice location is 30 Brennan St, Watsonville, California. You can reach out to his office (for appointments etc.) via phone at (831) 768-0220.

Dr Mark Gerard Byrne is licensed to practice in California (license number G74388) 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 1962411272.

Contact Information

Dr Mark Gerard Byrne, MD
30 Brennan St,
Watsonville, CA 95076-4303
(831) 768-0220
(831) 722-1702

Map and Direction




Physician's Profile

Full NameDr Mark Gerard Byrne
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience35 Years
Location30 Brennan St, Watsonville, California
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 Mark Gerard Byrne attended and graduated from Illinois Medical College in 1989
  NPI Data:
  • NPI Number: 1962411272
  • Provider Enumeration Date: 08/05/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 0244142800
  • Enrollment ID: I20110712000540

Medical Identifiers

Medical identifiers for Dr Mark Gerard Byrne such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962411272NPI-NPPES
00G743880MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0011XInternal Medicine - Interventional Cardiology G74388 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Watsonville Community HospitalWatsonville, CAHospital
Watsonville Nursing CenterWatsonville, CANursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Brennan Medical Corporation82242065452

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 Mark Gerard Byrne allows following entities to bill medicare on his behalf.
Entity NameBrennan Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619263712
PECOS PAC ID: 8224206545
Enrollment ID: O20110712000510

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 Mark Gerard Byrne 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 Mark Gerard Byrne, MD
30 Brennan St,
Watsonville, CA 95076-4303

Ph: (831) 768-0220
Dr Mark Gerard Byrne, MD
30 Brennan St,
Watsonville, CA 95076-4303

Ph: (831) 768-0220

Reviews and Comments


Internal Medicine Doctors in Watsonville, CA

Dr. Omid Bakhtar, D.O.
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Phone: 831-768-6217    Fax: 831-768-6219
Dr. Mai-khanh Bui-duy, M.D.
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Phone: 831-728-0222    Fax: 831-707-0277
Dr. Katherine Kenny, M.D.
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Vaal Rothman,
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Practice Location: 550 S Green Valley Rd, Watsonville, CA 95076
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Dr. Brendt D. Carlson, MD
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Phone: 831-761-7225    Fax: 831-761-1178
Elias S Rodriguez, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 10 W 5th St, Watsonville, CA 95076
Phone: 831-722-4016    Fax: 831-722-7756
Dr. Stanley Hwang, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 65 Neilson St Ste 102, Watsonville, CA 95076
Phone: 831-768-6217    Fax: 831-768-6215

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).

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