Christopher Dirk Keene, MD, PHD - Medicare Pathology in San Diego, CA

Christopher Dirk Keene, MD, PHD is a medicare enrolled "Pathology - Neuropathology" physician in San Diego, California. He went to University Of Minnesota Medical School and graduated in 2005 and has 21 years of diverse experience with area of expertise as Pathology. He is a member of the group practice The Association Of University Physicians and his current practice location is 200 W Arbor Dr, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (800) 926-8273.

Christopher Dirk Keene is licensed to practice in California (license number 207254) 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 1104928712.

Contact Information

Christopher Dirk Keene, MD, PHD
200 W Arbor Dr,
San Diego, CA 92103-9000
(800) 926-8273
(888) 539-8781

Map and Direction




Physician's Profile

Full NameChristopher Dirk Keene
GenderMale
SpecialityPathology
Experience21 Years
Location200 W Arbor Dr, San Diego, 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:
  • Christopher Dirk Keene attended and graduated from University Of Minnesota Medical School in 2005
  NPI Data:
  • NPI Number: 1104928712
  • Provider Enumeration Date: 09/03/2006
  • Last Update Date: 03/18/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 2466503495
  • Enrollment ID: I20090702000056

Medical Identifiers

Medical identifiers for Christopher Dirk Keene such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104928712NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZN0500XPathology - Neuropathology 207254 (California)Primary
207ZN0500XPathology - Neuropathology MD00048817 (Washington)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Harborview Medical CenterSeattle, WAHospital
University Of Washington Medical CtrSeattle, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Association Of University Physicians04461626973592

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. Christopher Dirk Keene allows following entities to bill medicare on his behalf.
Entity NameThe Association Of University Physicians
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023041159
PECOS PAC ID: 0446162697
Enrollment ID: O20031105000244

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. Christopher Dirk Keene 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
Christopher Dirk Keene, MD, PHD
File 57326,
Los Angeles, CA 90074-7326

Ph: (800) 926-8273
Christopher Dirk Keene, MD, PHD
200 W Arbor Dr,
San Diego, CA 92103-9000

Ph: (800) 926-8273

Reviews and Comments


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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.