Dr Mark M Girgis, DO - Medicare Neurology in Riverside, CA

Dr Mark M Girgis, DO is a medicare enrolled "Psychiatry & Neurology - Neurology" physician in Riverside, California. He went to Kansas City University Of Physicians And Surgeons and graduated in 2016 and has 8 years of diverse experience with area of expertise as Neurology. He is a member of the group practice California Neurointerventional Surgeons, Inc and his current practice location is 4445 Magnolia Ave, Riverside, California. You can reach out to his office (for appointments etc.) via phone at (951) 338-4910.

Dr Mark M Girgis is licensed to practice in Michigan (license number 5101022184) 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 1679921316.

Contact Information

Dr Mark M Girgis, DO
4445 Magnolia Ave,
Riverside, CA 92501-4135
(951) 338-4910
(833) 996-0004

Map and Direction




Physician's Profile

Full NameDr Mark M Girgis
GenderMale
SpecialityNeurology
Experience8 Years
Location4445 Magnolia Ave, Riverside, 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 Mark M Girgis attended and graduated from Kansas City University Of Physicians And Surgeons in 2016
  NPI Data:
  • NPI Number: 1679921316
  • Provider Enumeration Date: 06/02/2016
  • Last Update Date: 10/30/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2163715590
  • Enrollment ID: I20200805001035

Medical Identifiers

Medical identifiers for Dr Mark M Girgis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679921316NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084N0400XPsychiatry & Neurology - Neurology 5101022184 (Michigan)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Riverside Community HospitalRiverside, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
California Neurointerventional Surgeons, Inc26687171257

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 Mark M Girgis allows following entities to bill medicare on his behalf.
Entity NameCalifornia Neurointerventional Surgeons, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417315300
PECOS PAC ID: 2668717125
Enrollment ID: O20190103000009

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 Mark M Girgis 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 Mark M Girgis, DO
700 E Redlands Blvd # 714,
Redlands, CA 92373-6109

Ph: (951) 338-4910
Dr Mark M Girgis, DO
4445 Magnolia Ave,
Riverside, CA 92501-4135

Ph: (951) 338-4910

Reviews and Comments


Psychiatry & Neurology Doctors in Riverside, CA

Dr. Dalia N Balsamo, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 3125 Myers St, Riverside, CA 92503
Phone: 951-358-4840    
Dr. David Robert Seigler, M.D.
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Practice Location: 9990 County Farm Rd, Riverside, CA 92503
Phone: 951-358-4881    
Richard D Prather, MD
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Practice Location: Riverside County Dept Of Mental Health, 4095 County Circle Drive, Riverside, CA 92503
Phone: 951-955-8000    Fax: 951-955-8010
Dr. Tokunbo Labisi Williams, M.D
Psychiatry & Neurology
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Practice Location: 9990 County Farm Rd, Riverside, CA 92503
Phone: 951-358-4770    
Monish Parmar, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 4095 County Circle Dr, Riverside, CA 92503
Phone: 951-358-4504    
Dr. Sahar Hamidy Osman, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 4234 Riverwalk Pkwy Ste 230, Riverside, CA 92505
Phone: 951-781-3672    Fax: 951-781-0365
Arthur Amador, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 769 W Blaine St Ste B, Riverside, CA 92507
Phone: 951-358-4705    Fax: 951-358-4719

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.