John Casler, MD - Medicare Otolaryngology in Jacksonville, FL

John Casler, MD is a medicare enrolled "Otolaryngology" physician in Jacksonville, Florida. He went to George Washington University School Of Medicine and graduated in 1983 and has 41 years of diverse experience with area of expertise as Otolaryngology. He is a member of the group practice Mayo Clinic - Florida and his current practice location is 4500 San Pablo Rd S, Jacksonville, Florida. You can reach out to his office (for appointments etc.) via phone at (904) 953-2000.

John Casler is licensed to practice in Florida (license number ME100360) 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 1730183096.

Contact Information

John Casler, MD
4500 San Pablo Rd S,
Jacksonville, FL 32224-1865
(904) 953-2000
Not Available

Map and Direction




Physician's Profile

Full NameJohn Casler
GenderMale
SpecialityOtolaryngology
Experience41 Years
Location4500 San Pablo Rd S, Jacksonville, 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:
  • John Casler attended and graduated from George Washington University School Of Medicine in 1983
  NPI Data:
  • NPI Number: 1730183096
  • Provider Enumeration Date: 06/02/2005
  • Last Update Date: 02/23/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6103807680
  • Enrollment ID: I20080306000437

Medical Identifiers

Medical identifiers for John Casler such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1730183096NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Y00000XOtolaryngology ME100360 (Florida)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mayo Clinic FloridaJacksonville, FLHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mayo Clinic - Florida56986892971328

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. John Casler allows following entities to bill medicare on his behalf.
Entity NameMayo Clinic Jacksonville
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790772317
PECOS PAC ID: 5698689297
Enrollment ID: O20031118000388

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. John Casler 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
John Casler, MD
4500 San Pablo Rd S,
Jacksonville, FL 32224-1865

Ph: () -
John Casler, MD
4500 San Pablo Rd S,
Jacksonville, FL 32224-1865

Ph: (904) 953-2000

Reviews and Comments


Otolaryngology Doctors in Jacksonville, FL

Dr. Alexander A Farag, MD
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Phone: 904-396-8060    Fax: 904-390-7385
Dr. Erin Rae Spadaro Hamersley, D.O.
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Medicare: Medicare Enrolled
Practice Location: 554 Keily Street, Jacksonville, FL 32212
Phone: 757-953-7550    Fax: 757-953-7560
Charvar Jones,
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Practice Location: 532 Riverside Ave, Jacksonville, FL 32202
Phone: 904-791-6632    
Robert C Sprecher, MD
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Medicare: Medicare Enrolled
Practice Location: 807 Childrens Way, Nemours Childrens Clinic, Jacksonville, Jacksonville, FL 32207
Phone: 904-697-3694    Fax: 904-697-3927
Samip Patel, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 4500 San Pablo Rd S, Jacksonville, FL 32224
Phone: 904-953-2000    
Jeffrey Paul Radabaugh, MD
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 836 Prudential Dr Ste 1601, Jacksonville, FL 32207
Phone: 904-396-8060    Fax: 904-390-7385
Cheyenne Roohani, MD
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 807 Childrens Way, Jacksonville, FL 32207
Phone: 904-697-3600    Fax: 904-687-3927

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.