Ms Holly Gruwell Antonyan, NP - Medicare Nurse Practitioner in Torrance, CA

Ms Holly Gruwell Antonyan, NP is a medicare enrolled "Nurse Practitioner" in Torrance, California. She graduated from nursing school in 2011 and has 13 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Hillside Dermatology and her current practice location is 23550 Hawthorne Blvd Ste 200, Torrance, California. You can reach out to her office (for appointments etc.) via phone at (310) 361-6577.

Ms Holly Gruwell Antonyan is licensed to practice in California (license number 21075) 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 1144500398.

Contact Information

Ms Holly Gruwell Antonyan, NP
23550 Hawthorne Blvd Ste 200,
Torrance, CA 90505-4722
(310) 361-6577
(310) 373-2633

Map and Direction




Provider's Profile

Full NameMs Holly Gruwell Antonyan
GenderFemale
SpecialityNurse Practitioner
Experience13 Years
Location23550 Hawthorne Blvd Ste 200, Torrance, 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:
  • Ms Holly Gruwell Antonyan graduated from nursing school in 2011
  NPI Data:
  • NPI Number: 1144500398
  • Provider Enumeration Date: 08/19/2011
  • Last Update Date: 09/11/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4688802598
  • Enrollment ID: I20140122000335

Medical Identifiers

Medical identifiers for Ms Holly Gruwell Antonyan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144500398NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 21075 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hillside Dermatology04466065942

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. Ms Holly Gruwell Antonyan allows following entities to bill medicare on her behalf.
Entity NameCoast Dermatology Medical Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285926543
PECOS PAC ID: 7517114135
Enrollment ID: O20120904000155
Entity NameHillside Dermatology
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851174924
PECOS PAC ID: 0446606594
Enrollment ID: O20231025001448

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. Ms Holly Gruwell Antonyan 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
Ms Holly Gruwell Antonyan, NP
28625 S Western Ave # 55,
Rancho Palos Verdes, CA 90275-0810

Ph: () -
Ms Holly Gruwell Antonyan, NP
23550 Hawthorne Blvd Ste 200,
Torrance, CA 90505-4722

Ph: (310) 361-6577

Reviews and Comments


Nurse Practitioner Nurses in Torrance, CA

Dina M Meza,
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 1000 W Carson St, Head And Neck Box 6, Torrance, CA 90502
Phone: 310-222-2741    Fax: 310-222-5518
Kriska Aimee Tiglao, FNP-BC
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 1328 Portola Ave, Torrance, CA 90501
Phone: 310-872-6563    
Maureen Saligumba, ACNP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 1000 W Carson St, Torrance, CA 90502
Phone: 310-222-1912    
Anjana Johanis, NP-C
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 1000 W Carson St, Torrance, CA 90502
Phone: 424-306-8323    
Shannan Ann Stephenson, N.P.
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 1000 W Carson St, Torrance, CA 90502
Phone: 310-222-4160    Fax: 310-320-2271
Tanya Jennette Smit, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 4201 Torrance Blvd Ste 720, Torrance, CA 90503
Phone: 310-571-5957    
Pavanjit Brar, F.N.P
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 3333 Skypark Dr, Suite 100, Torrance, CA 90505
Phone: 310-784-6300    Fax: 310-891-6758

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.