Christopher D Olonan, MD - Medicare Internal Medicine in San Diego, CA

Christopher D Olonan, MD is a medicare enrolled "Internal Medicine" physician in San Diego, California. His current practice location is 1835 El Cajon Boulevard, Suite 8, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (619) 688-9000.

Christopher D Olonan is licensed to practice in California (license number A88005) 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 1013050541.

Contact Information

Christopher D Olonan, MD
1835 El Cajon Boulevard, Suite 8,
San Diego, CA 92103
(619) 688-9000
(619) 692-4160

Map and Direction




Physician's Profile

Full NameChristopher D Olonan
GenderMale
SpecialityInternal Medicine
Location1835 El Cajon Boulevard, San Diego, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1013050541
  • Provider Enumeration Date: 02/15/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4486751500
  • Enrollment ID: I20070523000634

Medical Identifiers

Medical identifiers for Christopher D Olonan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013050541NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A88005 (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. Christopher D Olonan allows following entities to bill medicare on his behalf.
Entity NameInpatient Services Of California A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609019215
PECOS PAC ID: 3274421532
Enrollment ID: O20040413000789
Entity NameHospitalist Medicine Physicians Of California Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184663965
PECOS PAC ID: 8426062027
Enrollment ID: O20060202000956
Entity NameKansal Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043510183
PECOS PAC ID: 6406089739
Enrollment ID: O20140512001295
Entity NameHospitalist Medicine Physicians Of California - Oceanside
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033697669
PECOS PAC ID: 5597002139
Enrollment ID: O20190121001542

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 D Olonan 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 D Olonan, MD
Po Box 720713,
San Diego, CA 92172-0713

Ph: (858) 663-3533
Christopher D Olonan, MD
1835 El Cajon Boulevard, Suite 8,
San Diego, CA 92103

Ph: (619) 688-9000

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.