Dr Michael Steven Ritter, MD - Medicare Emergency Medicine in Mission Viejo, CA

Dr Michael Steven Ritter, MD is a medicare enrolled "Emergency Medicine" physician in Mission Viejo, California. He went to University Of California, Irvine, California College Of Medicine and graduated in 1991 and has 33 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Mission Viejo Emergency Medical Associates and his current practice location is 27700 Medical Center Rd, Mission Viejo, California. You can reach out to his office (for appointments etc.) via phone at (949) 364-1400.

Dr Michael Steven Ritter is licensed to practice in California (license number G74723) 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 1295769156.

Contact Information

Dr Michael Steven Ritter, MD
27700 Medical Center Rd,
Mission Viejo, CA 92691-6426
(949) 364-1400
(949) 365-4941

Map and Direction




Physician's Profile

Full NameDr Michael Steven Ritter
GenderMale
SpecialityEmergency Medicine
Experience33 Years
Location27700 Medical Center Rd, Mission Viejo, 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 Michael Steven Ritter attended and graduated from University Of California, Irvine, California College Of Medicine in 1991
  NPI Data:
  • NPI Number: 1295769156
  • Provider Enumeration Date: 07/10/2006
  • Last Update Date: 06/27/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 5597793737
  • Enrollment ID: I20050729000455

Medical Identifiers

Medical identifiers for Dr Michael Steven Ritter such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295769156NPI-NPPES
00G747230MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine G74723 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mission Hospital Regional Med CenterMission viejo, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mission Viejo Emergency Medical Associates216333524115

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 Michael Steven Ritter allows following entities to bill medicare on his behalf.
Entity NameMission Viejo Emergency Medical Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073542916
PECOS PAC ID: 2163335241
Enrollment ID: O20031106000308
Entity NameMission Viejo Emergency Medical Associates, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134355597
PECOS PAC ID: 7315090271
Enrollment ID: O20090725000046

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 Michael Steven Ritter 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 Michael Steven Ritter, MD
Po Box 660099,
Arcadia, CA 91066-0099

Ph: (626) 447-0296
Dr Michael Steven Ritter, MD
27700 Medical Center Rd,
Mission Viejo, CA 92691-6426

Ph: (949) 364-1400

Reviews and Comments


Emergency Medicine Doctors in Mission Viejo, CA

Peter C. Czuleger, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 26800 Crown Valley Pkwy, Suite 150, Mission Viejo, CA 92691
Phone: 949-276-2111    Fax: 949-276-2115
Dr. Michael F Mccormack, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 26991 Crown Valley Pkwy, Mission Viejo, CA 92691
Phone: 949-582-2002    Fax: 949-367-5200
Zachary James Perry,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 27700 Medical Center Rd, Mission Viejo, CA 92691
Phone: 949-364-1400    
Zwi Steindler, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 25482 Pacific Hills Dr, Mission Viejo, CA 92692
Phone: 949-838-4102    Fax: 949-258-5990
Dr. Jesse Borke, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 26800 Crown Valley Pkwy Ste 340, Mission Viejo, CA 92691
Phone: 949-889-2020    
Dr. James Blair Price, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 27700 Medical Center Rd, Mission Viejo, CA 92691
Phone: 949-364-1400    Fax: 949-365-4941

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.