Natalya Ruben Grigoryan, MD - Medicare Emergency Medicine in West Hills, CA

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Natalya Ruben Grigoryan, MD is a medicare enrolled "Emergency Medicine" physician in West Hills, California. She graduated from medical school in 2014 and has 12 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice California Mobile Medical Group Inc and her current practice location is 7300 Medical Center Dr, West Hills, California. You can reach out to her office (for appointments etc.) via phone at (818) 676-4000.

Natalya Ruben Grigoryan is licensed to practice in California (license number A174112) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1811485394.

Contact Information

Natalya Ruben Grigoryan, MD
7300 Medical Center Dr,
West Hills, CA 91307-1902
(818) 676-4000
Not Available

Map and Direction




Physician's Profile

Full NameNatalya Ruben Grigoryan
GenderFemale
SpecialityEmergency Medicine
Experience12 Years
Location7300 Medical Center Dr, West Hills, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Natalya Ruben Grigoryan graduated from medical school in 2014
  NPI Data:
  • NPI Number: 1811485394
  • Provider Enumeration Date: 04/30/2018
  • Last Update Date: 07/02/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8426447731
  • Enrollment ID: I20211108001078

Medical Identifiers

Medical identifiers for Natalya Ruben Grigoryan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811485394NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine MD-54985 (Iowa)Secondary
207P00000XEmergency Medicine A174112 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
California Mobile Medical Group Inc771933009113

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. Natalya Ruben Grigoryan 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: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678
Entity NameTeam Physicians Of Southern California Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225499015
PECOS PAC ID: 0446545354
Enrollment ID: O20160816003061
Entity NameTeam Physicians Of Northern California Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1649692716
PECOS PAC ID: 7113215146
Enrollment ID: O20161006002407
Entity NameMobile Medical Group Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487169660
PECOS PAC ID: 8224397963
Enrollment ID: O20180125002042
Entity NameCalifornia Mobile Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588439061
PECOS PAC ID: 7719330091
Enrollment ID: O20240202001837

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. Natalya Ruben Grigoryan 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
Natalya Ruben Grigoryan, MD
7300 Medical Center Dr,
West Hills, CA 91307-1902

Ph: (818) 676-4000		Natalya Ruben Grigoryan, MD
7300 Medical Center Dr,
West Hills, CA 91307-1902

Ph: (818) 676-4000

Reviews and Comments


Emergency Medicine Doctors in West Hills, CA

Rosmir Roseta Villaluz, FNP
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7300 Medical Center Dr, West Hills, CA 91307
Phone: 818-676-4000    
Kiarash Rowhanian, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 7300 Medical Center Dr, West Hills, CA 91307
Phone: 818-676-4000    
Aaron Jameson Mueller, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 7300 Medical Center Dr, West Hills, CA 91307
Phone: 818-676-4000    
Gary Sindell, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 7300 Medical Center Dr, Emergency Department, West Hills, CA 91307
Phone: 818-676-4000    
Randall A Caldron, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 7230 Medical Center Dr, Suite 302, West Hills, CA 91307
Phone: 818-518-5980    Fax: 818-337-2049
Loren E. Caira, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 7300 Medical Center Dr, Emergency Department, West Hills, CA 91307
Phone: 818-676-4000    
Alan L. Kuban, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7300 Medical Center Dr, Emergency Department, West Hills, CA 91307
Phone: 818-676-4000    

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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