Dr William Clarence Geisert, MD - Medicare Orthopedic Surgery in Fleming Island, FL

  1. Home
  2. Orthopedic Surgery
  3. FL
  4. Fleming Island
Dr William Clarence Geisert, MD is a medicare enrolled "Orthopaedic Surgery" physician in Fleming Island, Florida. He went to University Of Michigan Medical School and graduated in 2012 and has 14 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Southeast Orthopedic Specialists Llc, Lake Area Physical Therapy Inc. and his current practice location is 4565 Us Highway 17 Ste 2200, Fleming Island, Florida. You can reach out to his office (for appointments etc.) via phone at (904) 634-0640.

Dr William Clarence Geisert is licensed to practice in Florida (license number ME174253) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1336415736.

Contact Information

Dr William Clarence Geisert, MD
4565 Us Highway 17 Ste 2200,
Fleming Island, FL 32003-4842
(904) 634-0640
(904) 634-0203

Map and Direction




Physician's Profile

Full NameDr William Clarence Geisert
GenderMale
SpecialityOrthopedic Surgery
Experience14 Years
Location4565 Us Highway 17 Ste 2200, Fleming Island, Florida
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr William Clarence Geisert attended and graduated from University Of Michigan Medical School in 2012
  NPI Data:
  • NPI Number: 1336415736
  • Provider Enumeration Date: 03/29/2012
  • Last Update Date: 08/05/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 0840417192
  • Enrollment ID: I20250704000333

Medical Identifiers

Medical identifiers for Dr William Clarence Geisert such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336415736NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery 4301100411 (Michigan)Secondary
207X00000XOrthopaedic Surgery 01086351A (Indiana)Secondary
207X00000XOrthopaedic Surgery 74275 (Arizona)Secondary
207X00000XOrthopaedic Surgery ME174253 (Florida)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Bravery Home HealthcareSt augustine, FLHome health agency
Ascension St Vincent's SouthsideJacksonville, FLHospital
Ascension St Vincent's RiversideJacksonville, FLHospital
Ascension St Vincent's Clay CountyMiddleburg, FLHospital
Baptist Medical Center JacksonvilleJacksonville, FLHospital
Baptist Medical Center - NassauFernandina beach, FLHospital
Brooks Rehabilitation Hospital University CampusJacksonville, FLInpatient rehabilitation facility

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southeast Orthopedic Specialists Llc1456246974144
Lake Area Physical Therapy Inc.3678604840372

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 Clarence Geisert allows following entities to bill medicare on his behalf.
Entity NameSoutheast Orthopedic Specialists LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629025820
PECOS PAC ID: 1456246974
Enrollment ID: O20040216000301

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 Clarence Geisert 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 Clarence Geisert, MD
6800 Southpoint Pkwy Ste 300,
Jacksonville, FL 32216-8203

Ph: (904) 634-0640		Dr William Clarence Geisert, MD
4565 Us Highway 17 Ste 2200,
Fleming Island, FL 32003-4842

Ph: (904) 634-0640

Reviews and Comments


Orthopaedic Surgery Doctors in Fleming Island, FL

Stephen Gibbs, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 4689 Highway 17, Suite 11, Fleming Island, FL 32003
Phone: 904-375-9753    Fax: 904-375-8380
Albert Lewis Henry, MD
Orthopedic Surgery
Medicare: Medicare Enrolled
Practice Location: 4689 Us Highway 17, Suite 11 &12, Fleming Island, FL 32003
Phone: 904-375-9753    Fax: 904-375-8380
Dr. Lucas Anissian, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 4689 Us Highway 17, Fleming Island, FL 32003
Phone: 904-269-7007    Fax: 904-269-0529
Dr. Nicholas J Sacksteder, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1747 Baptist Clay Dr Ste 200, Fleming Island, FL 32003
Phone: 904-276-5776    Fax: 904-276-5958
Aaron Michael Bates, M.D.
Orthopedic Surgery
Medicare: May Accept Medicare Assignments
Practice Location: 4565 Us Highway 17 Ste 200, Fleming Island, FL 32003
Phone: 904-634-0640    Fax: 904-634-0640
Harrison S Mahon, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1747 Baptist Clay Dr Ste 200, Fleming Island, FL 32003
Phone: 904-161-9503    Fax: 904-376-3062
Kurt Alan Madzunovic, DO
Orthopedic Surgery
Medicare: May Accept Medicare Assignments
Practice Location: 1747 Baptist Clay Dr Ste 200, Fleming Island, FL 32003
Phone: 904-516-1950    Fax: 904-376-3062

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.