Dr Wisam S Naji, MD - Medicare Internal Medicine in Valencia, CA

Dr Wisam S Naji, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Valencia, California. He graduated from medical school in 2004 and has 20 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Providence Facey Medical Foundation and his current practice location is 23803 Mcbean Pkwy #202, Valencia, California. You can reach out to his office (for appointments etc.) via phone at (661) 481-2400.

Dr Wisam S Naji is licensed to practice in California (license number 142592) 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 1407119738.

Contact Information

Dr Wisam S Naji, MD
23803 Mcbean Pkwy #202,
Valencia, CA 91355-2302
(661) 481-2400
(661) 579-8461

Map and Direction




Physician's Profile

Full NameDr Wisam S Naji
GenderMale
SpecialityInternal Medicine
Experience20 Years
Location23803 Mcbean Pkwy #202, Valencia, 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 Wisam S Naji graduated from medical school in 2004
  NPI Data:
  • NPI Number: 1407119738
  • Provider Enumeration Date: 06/21/2012
  • Last Update Date: 08/01/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 5395058523
  • Enrollment ID: I20171113001612

Medical Identifiers

Medical identifiers for Dr Wisam S Naji such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1407119738NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 2015020989 (Missouri)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 142592 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Henry Mayo Newhall HospitalValencia, CAHospital
Providence Holy Cross Medical CenterMission hills, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Facey Medical Foundation3173436276282

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 Wisam S Naji allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameProvidence Facey Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710031588
PECOS PAC ID: 3173436276
Enrollment ID: O20031105000822
Entity NameArya Medical Group Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912365891
PECOS PAC ID: 0244536894
Enrollment ID: O20160309000134

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 Wisam S Naji 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 Wisam S Naji, MD
Po Box 9602,
Mission Hills, CA 91346-9602

Ph: (818) 837-5559
Dr Wisam S Naji, MD
23803 Mcbean Pkwy #202,
Valencia, CA 91355-2302

Ph: (661) 481-2400

Reviews and Comments


Internal Medicine Doctors in Valencia, CA

Mostafa Tabassomi, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 23838 Valencia Blvd Ste 304, Valencia, CA 91355
Phone: 661-430-9030    Fax: 661-430-9020
Dr. Gene L Tran, D.O.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 23803 Mcbean Pkwy, Valencia, CA 91355
Phone: 661-481-2400    
Dr. Robert Kozlowski, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 25751 Mcbean Pkwy Ste 210, Valencia, CA 91355
Phone: 661-284-3100    Fax: 661-290-3310
Dr. Douglas R Gadowski, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 25775 Mcbean Pkwy, Ste 105, Valencia, CA 91355
Phone: 661-255-2410    Fax: 661-255-8671
Sittiporn Bencharit, M.D.
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 25775 Mcbean Pkwy, Suite 115, Valencia, CA 91355
Phone: 661-255-2420    Fax: 661-259-0552
David Elliott Krieger, M.D.,PH.D.
Pulmonary Disease
Medicare: Not Enrolled in Medicare
Practice Location: 25775 Mcbean Pkwy, Suite 115, Valencia, CA 91355
Phone: 661-255-2420    Fax: 661-259-5741
Arousha Davatgarzadeh, M.D.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 26357 Mcbean Pkwy, Valencia, CA 91355
Phone: 661-222-2605    Fax: 661-222-2694

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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