William M Hammesfahr, MD - Medicare Psychiatry & Neurology in Lady Lake, FL

William M Hammesfahr, MD is a medicare enrolled "Psychiatry & Neurology - Neurology" physician in Lady Lake, Florida. His current practice location is 510 Cr 466, Ste 207 D, Lady Lake, Florida. You can reach out to his office (for appointments etc.) via phone at (352) 414-5322.

William M Hammesfahr is licensed to practice in Florida (license number ME 52212) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1962446500.

Contact Information

William M Hammesfahr, MD
510 Cr 466, Ste 207 D,
Lady Lake, FL 32159
(352) 414-5322
Not Available

Map and Direction




Physician's Profile

Full NameWilliam M Hammesfahr
GenderMale
SpecialityPsychiatry & Neurology - Neurology
Location510 Cr 466, Lady Lake, Florida
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1962446500
  • Provider Enumeration Date: 06/15/2006
  • Last Update Date: 03/25/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 8820047400
  • Enrollment ID: I20050120000981

Medical Identifiers

Medical identifiers for William M Hammesfahr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962446500NPI-NPPES
ME 0052212OtherFLMEDICAL LICENSE
271074900MedicaidFL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084N0400XPsychiatry & Neurology - Neurology ME 52212 (Florida)Primary
2084P0005XPsychiatry & Neurology - Neurodevelopmental Disabilities ME52212 (Florida)Secondary
2084P2900XPsychiatry & Neurology - Pain Medicine ME52212 (Florida)Secondary
2084V0102XPsychiatry & Neurology - Vascular Neurology ME52212 (Florida)Secondary

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. William M Hammesfahr allows following entities to bill medicare on his behalf.
Entity NameTricounty Specialists, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528308095
PECOS PAC ID: 8729225909
Enrollment ID: O20130507000305

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. William M Hammesfahr 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
William M Hammesfahr, MD
19740 Gulf Boulevard,
Redington Shores, FL 33708-1146

Ph: (352) 217-7425
William M Hammesfahr, MD
510 Cr 466, Ste 207 D,
Lady Lake, FL 32159

Ph: (352) 414-5322

Reviews and Comments


Psychiatry & Neurology Doctors in Lady Lake, FL


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.