Dr David J Chapman, MD - Medicare Gastroenterology in Yorba Linda, CA

Dr David J Chapman, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Yorba Linda, California. He went to University Of California, San Francisco School Of Medicine and graduated in 1975 and has 49 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice First Choice Physician Partners, Regents Of The University Of California and his current practice location is 16671 Yorba Linda Blvd, Ste 200, Yorba Linda, California. You can reach out to his office (for appointments etc.) via phone at (714) 996-3700.

Dr David J Chapman is licensed to practice in California (license number G36066) 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 1053321943.

Contact Information

Dr David J Chapman, MD
16671 Yorba Linda Blvd, Ste 200,
Yorba Linda, CA 92886-2046
(714) 996-3700
(714) 961-7839

Map and Direction




Physician's Profile

Full NameDr David J Chapman
GenderMale
SpecialityGastroenterology
Experience49 Years
Location16671 Yorba Linda Blvd, Yorba Linda, 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 David J Chapman attended and graduated from University Of California, San Francisco School Of Medicine in 1975
  NPI Data:
  • NPI Number: 1053321943
  • Provider Enumeration Date: 08/09/2006
  • Last Update Date: 06/13/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 1557306891
  • Enrollment ID: I20090317000667

Medical Identifiers

Medical identifiers for Dr David J Chapman such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1053321943NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology G36066 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Placentia Linda HospitalPlacentia, CAHospital
St Jude Medical CenterFullerton, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
First Choice Physician Partners0941465322195
Regents Of The University Of California559766364159

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 J Chapman allows following entities to bill medicare on his behalf.
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679521850
PECOS PAC ID: 5597663641
Enrollment ID: O20031226000376
Entity NameFirst Choice Physician Partners
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104183052
PECOS PAC ID: 0941465322
Enrollment ID: O20120710000480

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 J Chapman 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 J Chapman, MD
16671 Yorba Linda Blvd, Ste 200,
Yorba Linda, CA 92886-2046

Ph: (714) 996-3700
Dr David J Chapman, MD
16671 Yorba Linda Blvd, Ste 200,
Yorba Linda, CA 92886-2046

Ph: (714) 996-3700

Reviews and Comments


Internal Medicine Doctors in Yorba Linda, CA

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Dr. Myung S. Kim, M.D.
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Phone: 714-685-3520    

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.