Frederic J Leong, MD - Medicare Pediatric Medicine in Thousand Oaks, CA

Frederic J Leong, MD is a medicare enrolled "Pediatrics - Pediatric Cardiology" physician in Thousand Oaks, California. He went to University Of Missouri, Kansas City, School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Pediatric Medicine. He is a member of the group practice County Of Ventura and his current practice location is 227 W Janss, #205, Thousand Oaks, California. You can reach out to his office (for appointments etc.) via phone at (805) 497-7214.

Frederic J Leong is licensed to practice in California (license number G071490) 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 1598876070.

Contact Information

Frederic J Leong, MD
227 W Janss, #205,
Thousand Oaks, CA 91360
(805) 497-7214
(805) 497-0864

Map and Direction




Physician's Profile

Full NameFrederic J Leong
GenderMale
SpecialityPediatric Medicine
Experience35 Years
Location227 W Janss, Thousand Oaks, California
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:
  • Frederic J Leong attended and graduated from University Of Missouri, Kansas City, School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1598876070
  • Provider Enumeration Date: 08/31/2006
  • Last Update Date: 07/14/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4789614363
  • Enrollment ID: I20130911000562

Medical Identifiers

Medical identifiers for Frederic J Leong such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598876070NPI-NPPES
00G714901MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0202XPediatrics - Pediatric Cardiology G071490 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Ventura7911810171221

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. Frederic J Leong allows following entities to bill medicare on his 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. Frederic J Leong 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
Frederic J Leong, MD
227 W Janss, #205,
Thousand Oaks, CA 91360

Ph: (805) 497-7214
Frederic J Leong, MD
227 W Janss, #205,
Thousand Oaks, CA 91360

Ph: (805) 497-7214

Reviews and Comments


Pediatrics Doctors in Thousand Oaks, CA

Dr. Tammy S Chi, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 299 W Hillcrest Dr Ste 100, Thousand Oaks, CA 91360
Phone: 805-497-7888    Fax: 805-494-3498
Dr. Lawrence I. Spinner, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 430 Avenida De Los Arboles, Suite 201, Thousand Oaks, CA 91360
Phone: 805-493-1964    Fax: 805-241-5382
Dr. Arlene Alikian, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 2125 E Thousand Oaks Blvd, Suite B-2, Thousand Oaks, CA 91362
Phone: 805-374-7874    Fax: 805-374-7876
Betsy Weisz, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 430 Avenida De Los Arboles, #201, Thousand Oaks, CA 91360
Phone: 805-493-1964    Fax: 805-492-0614
Dr. Lisa Lee Mathis, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 1 Amgen Center Dr, Pediatric Clinic, Thousand Oaks, CA 91320
Phone: 805-279-9046    
Russell Spadaro, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 2125 E Thousand Oaks Blvd # B-1, Thousand Oaks, CA 91362
Phone: 805-493-1964    Fax: 805-492-0614

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).

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