Dr Natasha Alexander, MD - Medicare Internal Medicine in Rialto, CA

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Dr Natasha Alexander, MD is a medicare enrolled "Internal Medicine" physician in Rialto, California. Her current practice location is 1851 N Riverside Ave, Rialto, California. You can reach out to her office (for appointments etc.) via phone at (909) 874-2371.

Dr Natasha Alexander is licensed to practice in California (license number A125684) 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 1255615530.

Contact Information

Dr Natasha Alexander, MD
1851 N Riverside Ave,
Rialto, CA 92376-8069
(909) 874-2371
Not Available

Map and Direction




Physician's Profile

Full NameDr Natasha Alexander
GenderFemale
SpecialityInternal Medicine
Location1851 N Riverside Ave, Rialto, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1255615530
  • Provider Enumeration Date: 10/04/2011
  • Last Update Date: 09/05/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 5890920623
  • Enrollment ID: I20140203000874

Medical Identifiers

Medical identifiers for Dr Natasha Alexander such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255615530NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A125684 (California)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 Natasha Alexander allows following entities to bill medicare on her behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316979834
PECOS PAC ID: 6002729175
Enrollment ID: O20040126000823
Entity NamePinnacle Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376876912
PECOS PAC ID: 4880667609
Enrollment ID: O20040818001020

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 Natasha Alexander 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 Natasha Alexander, MD
Po Box 12209,
San Bernardino, CA 92423-2209

Ph: (909) 335-4188		Dr Natasha Alexander, MD
1851 N Riverside Ave,
Rialto, CA 92376-8069

Ph: (909) 874-2371

Reviews and Comments


Internal Medicine Doctors in Rialto, CA

Dr. Rogelio Tan Toh, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1850 N Riverside Ave, Suite 240, Rialto, CA 92376
Phone: 909-421-2700    
Dr. Kumaravelu Balasubramaniam, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2006 N Riverside Ave, Ste B, Rialto, CA 92377
Phone: 909-881-3032    Fax: 909-881-0668
Hedyeh Mohajerin Golshan, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 1850 N Riverside Ave, Suite 230, Rialto, CA 92376
Phone: 909-875-1199    Fax: 909-875-1166
Dr. Sun Chung Soung, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1734 N Riverside Ave, Suite 2, Rialto, CA 92376
Phone: 909-875-3595    Fax: 909-875-1029
Dr. Victor Guharoy, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2006 N Riverside Ave, Rialto, CA 92377
Phone: 909-644-4033    
Zeid K Kayali, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2006 N Riverside Ave Ste A, Rialto, CA 92377
Phone: 909-883-2999    Fax: 909-883-2997

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.