Esteban Andryjowicz, MD - Medicare Obstetrics & Gynecology in Fontana, CA

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Esteban Andryjowicz, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Fontana, California. His current practice location is 9961 Sierra Ave, Fontana, California. You can reach out to his office (for appointments etc.) via phone at (909) 427-3910.

Esteban Andryjowicz is licensed to practice in California (license number G55816) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1275681058.

Contact Information

Esteban Andryjowicz, MD
9961 Sierra Ave,
Fontana, CA 92335-6720
(909) 427-3910
Not Available

Map and Direction




Physician's Profile

Full NameEsteban Andryjowicz
GenderMale
SpecialityObstetrics & Gynecology
Location9961 Sierra Ave, Fontana, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1275681058
  • Provider Enumeration Date: 01/08/2007
  • Last Update Date: 11/29/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2567651086
  • Enrollment ID: I20110113000727

Medical Identifiers

Medical identifiers for Esteban Andryjowicz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275681058NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology G55816 (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. Esteban Andryjowicz allows following entities to bill medicare on his 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

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. Esteban Andryjowicz 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
Esteban Andryjowicz, MD
9961 Sierra Ave,
Fontana, CA 92335-6720

Ph: (909) 427-3910		Esteban Andryjowicz, MD
9961 Sierra Ave,
Fontana, CA 92335-6720

Ph: (909) 427-3910

Reviews and Comments


Obstetrics & Gynecology Doctors in Fontana, CA

Suzanne Cao,
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-6538    
Amy W Zhai, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 9961 Sierra Ave, Kaiser Permanente Fontana Medical Ctr, Dept Of Ob/gyn, Fontana, CA 92335
Phone: 909-427-5279    
Dr. Erica Chia-chi Medina, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 833-574-2273    
Norry E. Huffman, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-3910    
Jessica Boksberger Iskander, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-4377    
Robert G. Pretorius, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-3910    
Stephen Cheng-wen Chao, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 8110 Mango Ave Ste 106, Fontana, CA 92335
Phone: 909-266-0090    

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).

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