Ralph Koo, MD - Medicare Emergency Medicine in Sacramento, CA

Ralph Koo, MD is a medicare enrolled "Emergency Medicine - Emergency Medical Services" physician in Sacramento, California. He went to University Of South Carolina School Of Medicine and graduated in 1993 and has 31 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Northbay Healthcare Group, Cep America - California and his current practice location is 2801 L St, Sacramento, California. You can reach out to his office (for appointments etc.) via phone at (916) 454-2222.

Ralph Koo is licensed to practice in California (license number GO81031) 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 1205932050.

Contact Information

Ralph Koo, MD
2801 L St,
Sacramento, CA 95816-5615
(916) 454-2222
Not Available

Map and Direction




Physician's Profile

Full NameRalph Koo
GenderMale
SpecialityEmergency Medicine
Experience31 Years
Location2801 L St, Sacramento, 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:
  • Ralph Koo attended and graduated from University Of South Carolina School Of Medicine in 1993
  NPI Data:
  • NPI Number: 1205932050
  • Provider Enumeration Date: 09/16/2006
  • Last Update Date: 03/25/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 2365448271
  • Enrollment ID: I20061017000616

Medical Identifiers

Medical identifiers for Ralph Koo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205932050NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207PE0004XEmergency Medicine - Emergency Medical Services GO81031 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northbay Medical CenterFairfield, CAHospital
San Joaquin General HospitalFrench camp, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northbay Healthcare Group0042122244244
Cep America - California6103739131974

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. Ralph Koo allows following entities to bill medicare on his behalf.
Entity NameNorthbay Healthcare Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821147786
PECOS PAC ID: 0042122244
Enrollment ID: O20031105000409
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520
Entity NameEmergency Physicians Associates Overhead Operating Account Dennis Belo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013969153
PECOS PAC ID: 0547230708
Enrollment ID: O20040727000859
Entity NameEmergency Physicians Associates Fremont Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790250967
PECOS PAC ID: 8527303585
Enrollment ID: O20181219000821

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. Ralph Koo 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
Ralph Koo, MD
2801 L St,
Sacramento, CA 95816-5615

Ph: (916) 454-2222
Ralph Koo, MD
2801 L St,
Sacramento, CA 95816-5615

Ph: (916) 454-2222

Reviews and Comments


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Kerilee Wenker, MD
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Practice Location: 2801 L St, Sacramento, CA 95816
Phone: 916-454-2222    

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.