MS. HOLLY GRUWELL ANTONYAN N.P.
NPI 1144500398
Nurse Practitioner in Torrance, CA

Q: What is Holly Antonyan's NPI number?

The NPI number for Holly Antonyan is 1144500398. It was assigned to this individual provider in the NPPES registry on August 19, 2011. The provider is also known as Holly M Gruwell.

Q: What is Holly Antonyan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Holly Antonyan was last updated on September 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 19, 2011PECOS EnrolledAccepts Medicare Assignment

77.86/100

CMS Quality Rating

24520 HAWTHORNE BLVD STE 240, TORRANCE, CA 90505(310) 300-6206(310) 919-3703 Get Directions Write a Review

NPPES record last updated: September 29, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 29, 2024, Jan 8, 2021, Apr 2, 2020 (3 updates tracked since 2020).

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About Ms. Holly Gruwell Antonyan N.p. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. HOLLY GRUWELL ANTONYAN N.P. (NPI 1144500398) is an individual nurse practitioner in Torrance, California, licensed in California (21075) and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1144500398

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMS. HOLLY GRUWELL ANTONYANCredential: N.P.

Location Address24520 HAWTHORNE BLVD STE 240Torrance, CA 90505-6849

Mailing Address28625 S Western Ave # 55Rancho Palos Verdes, CA 90275-0810

Phone(310) 300-6206

Fax(310) 919-3703

Sole ProprietorNo

Medical School CMSOtherGraduated 2011

Enumeration DateAugust 19, 2011

Last NPPES UpdateSeptember 29, 20243 updates tracked since enumeration

NPPES CertifiedSeptember 29, 2024

✔ NPI 1144500398 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in CA · 21075

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

24520 HAWTHORNE BLVD STE 240, Torrance, CA 90505

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Other Names 1

Former Name (1)Holly M Gruwell

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Holly Gruwell Antonyan N.p. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4688802598

PECOS Enrollment IDI20140122000335

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Destruction of precancer skin growth, 2-14 growths 17003

This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.

867 services134 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

308 services209 patients

Destruction of precancer skin growth, 1 growth 17000

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

215 services155 patients

Destruction of skin growth, 1-14 growths 17110

"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.

191 services152 patients

Biopsy of related skin growth, first growth 11102

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

117 services102 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

85 services32 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

72 services72 patients

Destruction of precancer skin growth, 15 or more growths 17004

This procedure involves removing 15 or more precancerous skin growths to prevent them from developing into cancer. It's done using various methods like freezing, creams, or minor surgery. The goal is to protect your health by stopping cancer before it starts.

68 services52 patients

Destruction of skin growth, 15 or more growths 17111

"Destruction of skin growth" refers to a procedure where unwanted skin growths, such as warts or moles, are removed. In this case, 15 or more growths are treated. Techniques may include freezing, burning, or laser therapy. It's a safe, quick process to improve skin health.

65 services53 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

51 services40 patients

Injection into skin growth, 1-7 growths 11900

This procedure involves injecting medication into 1-7 skin growths. The medication helps to reduce the size of the growths or completely eliminate them. It's a simple, quick, and usually painless process performed by a medical professional.

39 services30 patients

Biopsy of related skin growth, each additional growth 11103

A biopsy of related skin growth is a procedure where a small piece of skin growth is removed for testing. If additional growths are identified, they may also be biopsied. This helps in diagnosing skin conditions and planning appropriate treatment.

37 services30 patients

Aminolevulinic acid hcl for topical administration, 20%, single unit dosage form (354 mg) J7308

Aminolevulinic Acid HCL is a medication applied to the skin to treat certain types of skin conditions. It works by making the skin more sensitive to light, which helps to kill abnormal skin cells. The 20% solution is a single dose of 354 mg.

32 services24 patients

Application of light with debridement to destroy precancer skin growth 96574

This procedure involves applying a special light source to the skin after removing dead tissue (debridement). The light helps destroy precancerous growths, preventing them from developing into skin cancer. It's a safe and effective method to keep your skin healthy.

29 services22 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

19 services17 patients

Simple or single drainage of skin abscess 10060

A simple or single drainage of skin abscess is a procedure to remove pus from a skin infection. A small cut is made on the abscess, the pus is drained out, and the area is cleaned. This helps to reduce pain, speed up recovery, and prevent the spread of infection.

12 services12 patients

Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm 17262

This procedure involves removing a cancerous skin growth on the trunk, arms, or legs that is between 1.1 and 2.0 cm in size. The growth is destroyed using methods like surgery, laser, or freezing, aiming to eliminate cancer and prevent its spread.

12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90505 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.86/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

58.05

Promoting Interoperability

Improvement Activities

Cost

73.99

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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MATTHEW SIDNEY OLIN PA

Physician Assistant

24520 HAWTHORNE BLVD STE 240
TORRANCE, CA 90505

Los Angeles County (310) 300-6206

DR. ALBERT ANTONYAN MD

Dermatology

24520 HAWTHORNE BLVD STE 240
TORRANCE, CA 90505

Los Angeles County (310) 300-6206

HILLSIDE DERMATOLOGY

Dermatology

24520 HAWTHORNE BLVD STE 240
TORRANCE, CA 90505

Los Angeles County (310) 300-6206

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Holly Antonyan's NPI number?

The NPI number for Holly Antonyan is 1144500398. It was assigned to this individual provider in the NPPES registry on August 19, 2011. The provider is also known as Holly M Gruwell.

Where is Holly Antonyan located?

Holly Antonyan practices at 24520 Hawthorne Blvd Ste 240, Torrance, CA 90505. The listed phone number is (310) 300-6206.

What is Holly Antonyan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Holly Antonyan enrolled in Medicare?

Yes. Holly Antonyan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Holly Antonyan was last updated on September 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.