Dr Alex Tan Villacastin, MD - Medicare Internal Medicine in Citrus Springs, FL

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Dr Alex Tan Villacastin, MD is a medicare enrolled "Internal Medicine" physician in Citrus Springs, Florida. He graduated from medical school in 1991 and has 34 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Nature Coast Geriatric Services Llc, West Florida Medical Associates, Pa and his current practice location is 10489 N Florida Ave, Citrus Springs, Florida. You can reach out to his office (for appointments etc.) via phone at (352) 489-2486.

Dr Alex Tan Villacastin is licensed to practice in Florida (license number ME071085) 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 1194827097.

Contact Information

Dr Alex Tan Villacastin, MD
10489 N Florida Ave,
Citrus Springs, FL 34434-3268
(352) 489-2486
(352) 489-5786

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Physician's Profile

Full NameDr Alex Tan Villacastin
GenderMale
SpecialityInternal Medicine
Experience34 Years
Location10489 N Florida Ave, Citrus Springs, 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:
  • Dr Alex Tan Villacastin graduated from medical school in 1991
  NPI Data:
  • NPI Number: 1194827097
  • Provider Enumeration Date: 09/01/2006
  • Last Update Date: 12/29/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 9830008341
  • Enrollment ID: I20100422000217

Medical Identifiers

Medical identifiers for Dr Alex Tan Villacastin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194827097NPI-NPPES
32745OtherBLUE CROSS BLUE SHIELD
593411454OtherHUMANA
225194OtherAVMED
25180660MedicaidFL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine ME071085 (Florida)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Florida Homecare Specialists IncLady lake, FLHome health agency
Kindred At HomeBeverly hills, FLHome health agency
Vitas Healthcare Corporation Of FloridaMelbourne, FLHospice
Citrus Memorial HospitalInverness, FLHospital
Crystal River Health And Rehabilitation CenterCrystal river, FLNursing home
Diamond Ridge Health And Rehabilitation CenterLecanto, FLNursing home
Life Care Center Of Citrus CountyLecanto, FLNursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Nature Coast Geriatric Services Llc024454128213
West Florida Medical Associates, Pa903202322119

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 Alex Tan Villacastin allows following entities to bill medicare on his behalf.
Entity NameWest Florida Medical Associates, Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265515001
PECOS PAC ID: 9032023221
Enrollment ID: O20040401000131
Entity NameNature Coast Geriatric Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417340654
PECOS PAC ID: 0244541282
Enrollment ID: O20150617003035

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 Alex Tan Villacastin 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 Alex Tan Villacastin, MD
10489 N Florida Ave,
Citrus Springs, FL 34434-3268

Ph: (352) 489-2486		Dr Alex Tan Villacastin, MD
10489 N Florida Ave,
Citrus Springs, FL 34434-3268

Ph: (352) 489-2486

Reviews and Comments


Internal Medicine Doctors in Citrus Springs, FL

Michael Jianxiao Wu, DO
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 10489 N Florida Ave, Citrus Springs, FL 34434
Phone: 352-489-2486    Fax: 352-489-5786

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.