Mary Antionette Fitzsimons, MD - Medicare Emergency Medicine in Antioch, CA

Mary Antionette Fitzsimons, MD is a medicare enrolled "Emergency Medicine" physician in Antioch, California. Her current practice location is 3901 Lone Tree Way, Antioch, California. You can reach out to her office (for appointments etc.) via phone at (925) 779-7273.

Mary Antionette Fitzsimons is licensed to practice in California (license number G56339) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1053330431.

Contact Information

Mary Antionette Fitzsimons, MD
3901 Lone Tree Way,
Antioch, CA 94509-6200
(925) 779-7273
Not Available



Physician's Profile

Full NameMary Antionette Fitzsimons
GenderFemale
SpecialityEmergency Medicine
Location3901 Lone Tree Way, Antioch, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1053330431
  • Provider Enumeration Date: 07/18/2006
  • Last Update Date: 10/24/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8426961319
  • Enrollment ID: I20080508000340

Medical Identifiers

Medical identifiers for Mary Antionette Fitzsimons such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1053330431NPI-NPPES
00G563390MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine G56339 (California)Primary

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. Mary Antionette Fitzsimons allows following entities to bill medicare on her behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520

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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. Mary Antionette Fitzsimons 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
Mary Antionette Fitzsimons, MD
2100 Powell St, Ste 900,
Emeryville, CA 94608-1826

Ph: (510) 350-2600
Mary Antionette Fitzsimons, MD
3901 Lone Tree Way,
Antioch, CA 94509-6200

Ph: (925) 779-7273

News Archive

Exodus of doctors from the NHS predicted

An exodus of doctors from the NHS, starting with a retirement surge in 2006, is predicted by the British Medical Association if plans to reduce the value of NHS pensions and increase the normal retirement age from 60 to 65 years, go ahead.

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Dental Systems, Inc., a leading western Pennsylvania dental network, is urging consumers to contact Governor Tom Corbett as well as their senators to protest proposed cuts to Medicaid dental benefits.

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Read more News

› Verified 1 days ago


Emergency Medicine Doctors in Antioch, CA

Kathleen A Regacho, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 925-779-3522    
Khanh D Nguyen, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 510-350-2657    
Raj V. Dasari, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3400 Delta Fair Blvd, Antioch, CA 94509
Phone: 925-779-5000    
Ivan S. Cavaliere, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3400 Delta Fair Blvd, Antioch, CA 94509
Phone: 925-779-5000    
Russell Gerald Rodriguez, M.D
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 925-779-7273    
Susan Woodmansee, M.D
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 925-779-7273    

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