Dr David Hy Lin, MD - Medicare Internal Medicine in Walnut Creek, CA

Dr David Hy Lin, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Walnut Creek, California. His current practice location is 112 La Casa Via Ste 320, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 831-9200.

Dr David Hy Lin is licensed to practice in California (license number G41718) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1982664041.

Contact Information

Dr David Hy Lin, MD
112 La Casa Via Ste 320,
Walnut Creek, CA 94598-3018
(925) 831-9200
(925) 831-9317

Map and Direction




Physician's Profile

Full NameDr David Hy Lin
GenderMale
SpecialityInternal Medicine - Gastroenterology
Location112 La Casa Via Ste 320, Walnut Creek, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1982664041
  • Provider Enumeration Date: 03/24/2006
  • Last Update Date: 02/06/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 4082774542
  • Enrollment ID: I20081114000057

Medical Identifiers

Medical identifiers for Dr David Hy Lin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1982664041NPI-NPPES
G41718OtherCAMEDICAL LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology G41718 (California)Primary

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 David Hy Lin allows following entities to bill medicare on his behalf.
Entity NameJohn Muir Trauma Physicians Billing Service
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093864837
PECOS PAC ID: 3476542515
Enrollment ID: O20050420001452
Entity NameBass Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174253405
PECOS PAC ID: 9032111281
Enrollment ID: O20070201000181

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 David Hy Lin 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 David Hy Lin, MD
112 La Casa Via Ste 320,
Walnut Creek, CA 94598-3018

Ph: (925) 831-9200
Dr David Hy Lin, MD
112 La Casa Via Ste 320,
Walnut Creek, CA 94598-3018

Ph: (925) 831-9200

Reviews and Comments


Internal Medicine Doctors in Walnut Creek, CA

Dr. Joseph Patrick Henry, M.D.
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Dr. Cynthia M. Mullen, M.D.
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Phone: 925-322-2372    Fax: 925-322-6720
Mr. David Nathanson,
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Practice Location: 320 Lennon Ln, Walnut Creek, CA 94598
Phone: 925-906-2000    
Mark D Nathan, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 106 La Casa Via, #140, Walnut Creek, CA 94598
Phone: 925-274-2860    Fax: 925-932-4527

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.