Dr Christopher Robert Entwisle, MD - Medicare Gastroenterology in Livermore, CA

Dr Christopher Robert Entwisle, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Livermore, California. He went to New York Medical College and graduated in 2000 and has 24 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice University Healthcare Alliance and his current practice location is 1133 E Stanley Blvd, Suite 207, Livermore, California. You can reach out to his office (for appointments etc.) via phone at (925) 245-1238.

Dr Christopher Robert Entwisle is licensed to practice in California (license number A95045) 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 1841256963.

Contact Information

Dr Christopher Robert Entwisle, MD
1133 E Stanley Blvd, Suite 207,
Livermore, CA 94550-4200
(925) 245-1238
(925) 245-9849

Map and Direction




Physician's Profile

Full NameDr Christopher Robert Entwisle
GenderMale
SpecialityGastroenterology
Experience24 Years
Location1133 E Stanley Blvd, Livermore, 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:
  • Dr Christopher Robert Entwisle attended and graduated from New York Medical College in 2000
  NPI Data:
  • NPI Number: 1841256963
  • Provider Enumeration Date: 04/26/2006
  • Last Update Date: 04/08/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 1355352659
  • Enrollment ID: I20060530000245

Medical Identifiers

Medical identifiers for Dr Christopher Robert Entwisle such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841256963NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A95045 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Stanford Health Care - ValleycarePleasanton, CAHospital
Stanford Health CareStanford, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Healthcare Alliance6305748799341

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 Christopher Robert Entwisle allows following entities to bill medicare on his behalf.
Entity NameUniversity Healthcare Alliance
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760531198
PECOS PAC ID: 6305748799
Enrollment ID: O20040126000292

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 Christopher Robert Entwisle 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 Christopher Robert Entwisle, MD
1133 E Stanley Blvd, Suite 207,
Livermore, CA 94550-4200

Ph: (925) 245-1238
Dr Christopher Robert Entwisle, MD
1133 E Stanley Blvd, Suite 207,
Livermore, CA 94550-4200

Ph: (925) 245-1238

Reviews and Comments


Internal Medicine Doctors in Livermore, CA

Andrew W. Rodgers, MD
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Phone: 925-243-2600    
Vandana Jain, MD
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Dr. Ru Min Lee, M.D.
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Phone: 925-454-6390    
Kevin Khin-zaw Lee, MD
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Gary W. Peer, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 87 Fenton St Ste 101, Livermore, CA 94550
Phone: 925-447-1330    Fax: 925-447-0933
Dr. Michael Gerard Lyon, M.D.
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 4951 Arroyo Rd, Vamc 111(ld), Livermore, CA 94550
Phone: 650-493-5000    Fax: 925-449-6522

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.