DR. ARASH A. HORIZON M.D.
NPI 1881694131
Internal Medicine - Rheumatology in Los Angeles, CA

Active since July 28, 2005PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
8640 W 3RD ST, SUITE 300, LOS ANGELES, CA 90048(310) 659-7878(310) 659-7117 Get Directions Write a Review

NPPES record last updated: October 23, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Arash A. Horizon M.d. NPPES

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

DR. ARASH A. HORIZON M.D. (NPI 1881694131) is an individual rheumatology provider in Los Angeles, California, licensed in California (A69767) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (1998).

NPPES Registry Identity

NPI1881694131
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. ARASH A. HORIZONCredential: M.D.
Location Address8640 W 3RD ST, SUITE 300Los Angeles, CA 90048-3384
Mailing AddressPo Box 5762Beverly Hills, CA 90209-5762 · (310) 659-7878 · Fax (310) 659-7117
Fax(310) 659-7117
Sole ProprietorYes
Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 1998
Enumeration DateJuly 28, 2005
Last NPPES UpdateOctober 23, 2013
NPI 1881694131 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License Licensed in CA · A69767
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
8640 W 3RD ST, Los Angeles, CA 90048

Other Identifiers 5

Other200009572CA · Blue Cross
Medicare PINBI053ZCA
Medicaid00A697670CA
Medicare UPINH54609CA
Other00A697670CA · Blue Shield

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

Dr. Arash A. Horizon M.d. 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 ID5395734495
PECOS Enrollment IDI20040512000160
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 100

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.

Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) J0717
Certolizumab pegol is a medication injected under a doctor's supervision. It's used to treat certain inflammatory conditions like rheumatoid arthritis. The injection helps reduce symptoms like pain and swelling. Note that this drug isn't for self-administration.
174,400 services56 patients
Injection, ferric carboxymaltose, 1 mg J1439
Ferric carboxymaltose is an iron supplement injection. It's given when your body needs more iron than you can consume through diet, like in anemia. The injection is administered by a healthcare professional into a vein.
51,000 services47 patients
Injection, romosozumab-aqqg, 1 mg J3111
Romosozumab-aqqg is a medication given by injection to treat osteoporosis in patients at high risk for fractures. It works by increasing bone mass and strength, reducing the risk of fractures.
47,460 services38 patients
Injection, tocilizumab, 1 mg J3262
Tocilizumab is a medication administered via injection. It's used to treat certain conditions like rheumatoid arthritis by reducing inflammation in the body. It works by blocking a substance in the body that leads to inflammation.
42,521 services12 patients
Injection, vedolizumab, intravenous, 1 mg J3380
Vedolizumab is a medication given via injection. It's used to treat certain bowel conditions (such as Crohn's disease, ulcerative colitis) by reducing inflammation. It works by blocking a certain protein that causes this inflammation.
26,400 services12 patients
Injection, immune globulin (privigen), intravenous, non-lyophilized (e.g., liquid), 500 mg J1459
This is an intravenous procedure where 500 mg of liquid immune globulin (Privigen) is injected into your bloodstream. Immune globulin is a blood product that helps your body fight infections. It's used when your body's natural defenses aren't enough to combat disease.
22,660 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90048 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality100
Improvement Activities40

Other Providers at the Same Location NPPES 8

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

Pharmacy (Community/Retail Pharmacy)
8640 W 3RD ST, SUITE 100
LOS ANGELES, CA 90048
Internal Medicine
8640 W 3RD ST, SUITE 300
LOS ANGELES, CA 90048
Orthopaedic Surgery (Hand Surgery)
8640 W 3RD ST, 300
LOS ANGELES, CA 90048
Orthopaedic Surgery (Hand Surgery)
8640 W 3RD ST, #300
LOS ANGELES, CA 90048
Student in an Organized Health Care Education/Training Program
8640 W 3RD ST, SUITE 300
LOS ANGELES, CA 90048
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
8640 W 3RD ST
LOS ANGELES, CA 90048
Dentist (General Practice)
8640 W 3RD ST, #201
LOS ANGELES, CA 90048
Internal Medicine (Rheumatology)
8640 W 3RD ST, SUITE 300
LOS ANGELES, CA 90048

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 Arash Horizon's NPI number?

The NPI number for Arash Horizon is 1881694131. It was assigned to this individual provider in the NPPES registry on July 28, 2005.

Where is Arash Horizon located?

Arash Horizon practices at 8640 W 3rd St Suite 300, Los Angeles, CA 90048. The listed phone number is (310) 659-7878.

What is Arash Horizon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Arash Horizon enrolled in Medicare?

Yes. Arash Horizon 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 Arash Horizon was last updated on October 23, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.