Dr Mariana Rivera Bigham, MD - Medicare Internal Medicine in Kissimmee, FL

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Dr Mariana Rivera Bigham, MD is a medicare enrolled "Internal Medicine" physician in Kissimmee, Florida. She went to Mercer University School Of Medicine and graduated in 2019 and has 7 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Orlando Physicians Network Inc and her current practice location is 1300 Kevstin Dr, Kissimmee, Florida. You can reach out to her office (for appointments etc.) via phone at (321) 442-1214.

Dr Mariana Rivera Bigham is licensed to practice in Wisconsin (license number 77311-20) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1447719547.

Contact Information

Dr Mariana Rivera Bigham, MD
1300 Kevstin Dr,
Kissimmee, FL 34744-5843
(321) 442-1214
(321) 442-1215

Map and Direction




Physician's Profile

Full NameDr Mariana Rivera Bigham
GenderFemale
SpecialityInternal Medicine
Experience7 Years
Location1300 Kevstin Dr, Kissimmee, Florida
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Mariana Rivera Bigham attended and graduated from Mercer University School Of Medicine in 2019
  NPI Data:
  • NPI Number: 1447719547
  • Provider Enumeration Date: 03/18/2019
  • Last Update Date: 09/17/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 9537495056
  • Enrollment ID: I20250910000366

Medical Identifiers

Medical identifiers for Dr Mariana Rivera Bigham such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1447719547NPI-NPPES
1447719547MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine ME174684 (Florida)Secondary
207R00000XInternal Medicine 77311-20 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ssm Health St Mary's Hospital - MadisonMadison, WIHospital
Orlando Health Orlando Regional Medical CenterOrlando, FLHospital
Orlando Health St Cloud HospitalSaint cloud, FLHospital
Oak Park Place Of NakomaMadison, WINursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Orlando Physicians Network Inc7719026251231

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 Mariana Rivera Bigham allows following entities to bill medicare on her behalf.
Entity NameOrlando Physicians Network Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568693554
PECOS PAC ID: 7719026251
Enrollment ID: O20091123000506

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 Mariana Rivera Bigham 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 Mariana Rivera Bigham, MD
1300 Kevstin Dr,
Kissimmee, FL 34744-5843

Ph: (321) 442-1214		Dr Mariana Rivera Bigham, MD
1300 Kevstin Dr,
Kissimmee, FL 34744-5843

Ph: (321) 442-1214

Reviews and Comments


Internal Medicine Doctors in Kissimmee, FL

Dr. Richard Medina Perez, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 901 E Oak Street Suite C, Kissimmee, FL 34744
Phone: 386-561-9967    Fax: 844-815-1446
Dr. Mohammad T Siddiqui, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1101 N Central Ave, Kissimmee, FL 34741
Phone: 407-851-5600    Fax: 407-438-0507
Mohamed Atef Mohamed Elmahdy Hamed, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 2400 N Orange Blossom Trl Ste 204, Kissimmee, FL 34744
Phone: 407-932-6226    
Dr. Giovanni Hernandez, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1178 Cypress Glen Circle, Kissimmee, FL 34741
Phone: 407-943-8883    Fax: 407-943-8854
Sidi A Elalaoui, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1952 N John Young Pkwy, Kissimmee, FL 34741
Phone: 407-343-1284    Fax: 407-343-1286
Kathlyn Camargo Macias, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1205 N Central Ave, Kissimmee, FL 34741
Phone: 386-561-9967    
Dr. Mukesh Kumar, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 601 Oak Commons Blvd, Kissimmee, FL 34741
Phone: 407-846-0626    Fax: 407-846-2371

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.