Dr Cassandra A Mahan-richards, MD - Medicare Allergy & Immunology in Grand Terrace, CA

Dr Cassandra A Mahan-richards, MD is a medicare enrolled "Allergy & Immunology - Allergy" physician in Grand Terrace, California. Her current practice location is 11980 Mount Vernon Ave, Grand Terrace, California. You can reach out to her office (for appointments etc.) via phone at (909) 864-1097.

Dr Cassandra A Mahan-richards is licensed to practice in Washington (license number MD60286895) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1093767782.

Contact Information

Dr Cassandra A Mahan-richards, MD
11980 Mount Vernon Ave,
Grand Terrace, CA 92313-5172
(909) 864-1097
(951) 225-6879

Map and Direction




Physician's Profile

Full NameDr Cassandra A Mahan-richards
GenderFemale
SpecialityAllergy & Immunology - Allergy
Location11980 Mount Vernon Ave, Grand Terrace, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1093767782
  • Provider Enumeration Date: 05/17/2006
  • Last Update Date: 03/07/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3870487606
  • Enrollment ID: I20150313001995

Medical Identifiers

Medical identifiers for Dr Cassandra A Mahan-richards such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1093767782NPI-NPPES
MD60286895OtherWAWASHINGTON STATE LICENSE
00G646250MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207KA0200XAllergy & Immunology - Allergy G53986 (California)Secondary
207KA0200XAllergy & Immunology - Allergy MD60286895 (Washington)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. Dr Cassandra A Mahan-richards allows following entities to bill medicare on her behalf.
Entity NameAdvanced Allergy And Asthma, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841429743
PECOS PAC ID: 3274662853
Enrollment ID: O20100519000658

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 Cassandra A Mahan-richards 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 Cassandra A Mahan-richards, MD
Po Box 3649,
Spokane, WA 99220-3649

Ph: () -
Dr Cassandra A Mahan-richards, MD
11980 Mount Vernon Ave,
Grand Terrace, CA 92313-5172

Ph: (909) 864-1097

Reviews and Comments


Allergy & Immunology Doctors in Grand Terrace, CA


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.