Ryan S O'connor, MD - Medicare Emergency Medicine in Los Angeles, CA

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Ryan S O'connor, MD is a medicare enrolled "Emergency Medicine" physician in Los Angeles, California. He went to New York Medical College and graduated in 2002 and has 22 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Hollywood Presbyterian Emergency Medical Associates, Inc. and his current practice location is 1442 Kellam Ave, Los Angeles, California. You can reach out to his office (for appointments etc.) via phone at (310) 990-9979.

Ryan S O'connor is licensed to practice in California (license number A95130) 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 1821101635.

Contact Information

Ryan S O'connor, MD
1442 Kellam Ave,
Los Angeles, CA 90026-5138
(310) 990-9979
Not Available

Map and Direction




Physician's Profile

Full NameRyan S O'connor
GenderMale
SpecialityEmergency Medicine
Experience22 Years
Location1442 Kellam Ave, Los Angeles, 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:
  • Ryan S O'connor attended and graduated from New York Medical College in 2002
  NPI Data:
  • NPI Number: 1821101635
  • Provider Enumeration Date: 08/16/2006
  • Last Update Date: 09/26/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 1850311341
  • Enrollment ID: I20061025000801

Medical Identifiers

Medical identifiers for Ryan S O'connor such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821101635NPI-NPPES
00A951300MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A95130 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Hollywood Presbyterian Medical CenterLos angeles, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hollywood Presbyterian Emergency Medical Associates, Inc.76180062637

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. Ryan S O'connor allows following entities to bill medicare on his behalf.
Entity NameEmergency Department Physicians Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1730104498
PECOS PAC ID: 2567366800
Enrollment ID: O20031222000734
Entity NameCalifornia Hospitalists Emergency Physicians Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760648539
PECOS PAC ID: 5193886505
Enrollment ID: O20081203000866
Entity NameHollywood Presbyterian Emergency Medical Associates, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972826931
PECOS PAC ID: 7618006263
Enrollment ID: O20100520000454
Entity NameSan Joaquin Emergency Medical Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588960413
PECOS PAC ID: 6305022047
Enrollment ID: O20110516000103
Entity NameCan Emergency Physicians Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265810006
PECOS PAC ID: 8820304462
Enrollment ID: O20150827002595

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. Ryan S O'connor 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
Ryan S O'connor, MD
190 Portola Rd,
Portola Valley, CA 94028-7852

Ph: (310) 990-9979		Ryan S O'connor, MD
1442 Kellam Ave,
Los Angeles, CA 90026-5138

Ph: (310) 990-9979

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.