William Nelson Katkov, MD - Medicare Gastroenterology in Santa Monica, CA

William Nelson Katkov, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Santa Monica, California. He went to University Of Southern California Keck School Of Medicine and graduated in 1983 and has 41 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Cedars-sinai Medical Care Foundation and his current practice location is 2001 Santa Monica Blvd, Suite 360w, Santa Monica, California. You can reach out to his office (for appointments etc.) via phone at (310) 453-1871.

William Nelson Katkov is licensed to practice in California (license number G54468) 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 1386693646.

Contact Information

William Nelson Katkov, MD
2001 Santa Monica Blvd, Suite 360w,
Santa Monica, CA 90404-2102
(310) 453-1871
(310) 453-1871

Map and Direction




Physician's Profile

Full NameWilliam Nelson Katkov
GenderMale
SpecialityGastroenterology
Experience41 Years
Location2001 Santa Monica Blvd, Santa Monica, 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:
  • William Nelson Katkov attended and graduated from University Of Southern California Keck School Of Medicine in 1983
  NPI Data:
  • NPI Number: 1386693646
  • Provider Enumeration Date: 05/06/2006
  • Last Update Date: 12/19/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8921072281
  • Enrollment ID: I20071114000251

Medical Identifiers

Medical identifiers for William Nelson Katkov such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386693646NPI-NPPES
00G544680MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology G54468 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Cedar-sinai Marina Del Rey HospitalMarina del rey, CAHospital
Providence Saint John's Health CenterSanta monica, CAHospital
Cedars-sinai Medical CenterLos angeles, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cedars-sinai Medical Care Foundation09411066451208

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 Nelson Katkov allows following entities to bill medicare on his behalf.
Entity NameCedars-sinai Medical Care Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316984388
PECOS PAC ID: 0941106645
Enrollment ID: O20040202000464

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 Nelson Katkov 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 Nelson Katkov, MD
2001 Santa Monica Blvd, Suite 360w,
Santa Monica, CA 90404-2102

Ph: (310) 453-1871
William Nelson Katkov, MD
2001 Santa Monica Blvd, Suite 360w,
Santa Monica, CA 90404-2102

Ph: (310) 453-1871

Reviews and Comments


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Phone: 310-453-5654    Fax: 310-453-6885

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.