Marc Randall Shapiro, MD - Medicare Internal Medicine in Clearlake, CA

Marc Randall Shapiro, MD is a medicare enrolled "Internal Medicine" physician in Clearlake, California. He graduated from medical school in 1976 and has 48 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Adventist Health Clearlake Hospital Inc. and his current practice location is 3400 Emerson St, Suite A, Clearlake, California. You can reach out to his office (for appointments etc.) via phone at (707) 994-7241.

Marc Randall Shapiro is licensed to practice in California (license number G343590) 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 1740217348.

Contact Information

Marc Randall Shapiro, MD
3400 Emerson St, Suite A,
Clearlake, CA 95422-9529
(707) 994-7241
(707) 994-0870

Map and Direction




Physician's Profile

Full NameMarc Randall Shapiro
GenderMale
SpecialityInternal Medicine
Experience48 Years
Location3400 Emerson St, Clearlake, 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:
  • Marc Randall Shapiro graduated from medical school in 1976
  NPI Data:
  • NPI Number: 1740217348
  • Provider Enumeration Date: 06/27/2006
  • Last Update Date: 08/28/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 0749198786
  • Enrollment ID: I20050728000635

Medical Identifiers

Medical identifiers for Marc Randall Shapiro such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1740217348NPI-NPPES
110222799OtherCAMEDICARE RAILROAD #
00G343590MedicaidCA
P00730930OtherCAMEDICARE RAILROAD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G343590 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health ClearlakeClearlake, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Adventist Health Clearlake Hospital Inc.307242119781

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. Marc Randall Shapiro allows following entities to bill medicare on his behalf.
Entity NameAdventist Health Clearlake Hospital Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124018031
PECOS PAC ID: 3072421197
Enrollment ID: O20041112000573

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. Marc Randall Shapiro 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
Marc Randall Shapiro, MD
3400 Emerson St, Suite A,
Clearlake, CA 95422-9529

Ph: (707) 994-7241
Marc Randall Shapiro, MD
3400 Emerson St, Suite A,
Clearlake, CA 95422-9529

Ph: (707) 994-7241

Reviews and Comments


Internal Medicine Doctors in Clearlake, CA

John Vidrih, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15630 18th Ave, Clearlake, CA 95422
Phone: 707-994-6486    
Dr. Ilkyoon Kim, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 15666 18th Avenue, Clearlake, CA 95422
Phone: 707-994-4210    Fax: 707-994-0839
Dr. Milagros Tolentino, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 15666 18th Ave, Clearlake, CA 95422
Phone: 707-994-9469    Fax: 707-994-8758
Dr. Raymond Dean Jennings, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15230 Lakeshore Dr, Clearlake, CA 95422
Phone: 707-995-4500    Fax: 707-994-2401
Thomas C Kreck, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15630 18th Ave, Clearlake, CA 95422
Phone: 707-994-6486    
Eric E. Kim, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 4456 Manzanita Ave, Suite# C, Clearlake, CA 95422
Phone: 707-994-9191    Fax: 707-994-9090

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.