Stephen M Nathanson, MD - Medicare Pediatrics in Valencia, CA

Stephen M Nathanson, MD is a medicare enrolled "Pediatrics" physician in Valencia, California. His current practice location is 26357 Mcbean Pkwy, Valencia, California. You can reach out to his office (for appointments etc.) via phone at (661) 222-2620.

Stephen M Nathanson is licensed to practice in California (license number A43977) 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 1851310452.

Contact Information

Stephen M Nathanson, MD
26357 Mcbean Pkwy,
Valencia, CA 91355-4488
(661) 222-2620
(661) 222-2685

Map and Direction




Physician's Profile

Full NameStephen M Nathanson
GenderMale
SpecialityPediatrics
Location26357 Mcbean Pkwy, Valencia, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1851310452
  • Provider Enumeration Date: 07/18/2006
  • Last Update Date: 10/08/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 6305914854
  • Enrollment ID: I20081010000127

Medical Identifiers

Medical identifiers for Stephen M Nathanson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851310452NPI-NPPES
00A439770MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics A43977 (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. Stephen M Nathanson allows following entities to bill medicare on his behalf.
Entity NameProvidence Facey Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710031588
PECOS PAC ID: 3173436276
Enrollment ID: O20031105000822

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. Stephen M Nathanson 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
Stephen M Nathanson, MD
Po Box 9602,
Mission Hills, CA 91346-9602

Ph: (818) 837-5637
Stephen M Nathanson, MD
26357 Mcbean Pkwy,
Valencia, CA 91355-4488

Ph: (661) 222-2620

Reviews and Comments


Pediatrics Doctors in Valencia, CA

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Hasan Murad Chowdhury, M.D.
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Hadar Levgur-fields, M.D.
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Phone: 661-287-1551    Fax: 661-799-2952
Dr. Benjamin Harris Meisel, MD
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Practice Location: 27506 Berkshire Hills Pl, Valencia, CA 91354
Phone: 661-284-5969    Fax: 661-284-5969

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.