Alexa Marie Castellano, MD - Medicare Otolaryngology in Ventura, CA

Alexa Marie Castellano, MD is a medicare enrolled "Otolaryngology" physician in Ventura, California. She went to University Of Missouri, Columbia School Of Medicine and graduated in 2014 and has 10 years of diverse experience with area of expertise as Otolaryngology. She is a member of the group practice County Of Ventura and her current practice location is 300 Hillmont Ave, Ventura, California. You can reach out to her office (for appointments etc.) via phone at (805) 652-6556.

Alexa Marie Castellano is licensed to practice in California (license number A162090) 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 1578978813.

Contact Information

Alexa Marie Castellano, MD
300 Hillmont Ave,
Ventura, CA 93003-1651
(805) 652-6556
(805) 652-3252

Map and Direction




Physician's Profile

Full NameAlexa Marie Castellano
GenderFemale
SpecialityOtolaryngology
Experience10 Years
Location300 Hillmont Ave, Ventura, California
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:
  • Alexa Marie Castellano attended and graduated from University Of Missouri, Columbia School Of Medicine in 2014
  NPI Data:
  • NPI Number: 1578978813
  • Provider Enumeration Date: 06/25/2014
  • Last Update Date: 07/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8123245420
  • Enrollment ID: I20191008002602

Medical Identifiers

Medical identifiers for Alexa Marie Castellano such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1578978813NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Y00000XOtolaryngology 125.065078 (Illinois)Secondary
207Y00000XOtolaryngology A162090 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ventura County Medical CenterVentura, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Ventura7911810171208

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. Alexa Marie Castellano allows following entities to bill medicare on her behalf.
Entity NameCounty Of Ventura
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629167457
PECOS PAC ID: 7911810171
Enrollment ID: O20031112000587

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. Alexa Marie Castellano 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
Alexa Marie Castellano, MD
800 S Victoria Ave, L4615, Vchca - Physician Services,
Ventura, CA 93009-0003

Ph: (805) 677-5181
Alexa Marie Castellano, MD
300 Hillmont Ave,
Ventura, CA 93003-1651

Ph: (805) 652-6556

Reviews and Comments


Otolaryngology Doctors in Ventura, CA

Dr. James Lee Rea Sr., M.D.
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 2225 Sperry Ave, Suite 1000, Ventura, CA 93003
Phone: 866-815-6999    
Dr. William E. Starr, M.D.
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Hillmont Ave, Bldg 340, Ste 401, Ventura, CA 93003
Phone: 805-641-0141    Fax: 805-641-0430
Mr. John M Edison, M.D.
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 3003 Loma Vista Rd, Ste. A, Ventura, CA 93003
Phone: 805-648-3081    Fax: 805-648-2659
Dr. Armin Alavi, M.D.
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 3003 Loma Vista Rd, Ste A, Ventura, CA 93003
Phone: 805-648-3081    Fax: 805-648-2659
Dr. Arthur Stanley Peters, M.D.
Otolaryngology
Medicare: Medicare Enrolled
Practice Location: 164 Nob Hill Ln, Ventura, CA 93003
Phone: 805-648-3081    Fax: 805-648-2659
Chau Tuan Nguyen, M.D.
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 3170 Loma Vista Rd, Suite B, Ventura, CA 93003
Phone: 805-641-4431    Fax: 805-641-4416

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.