1. Home
  2. Directory
  3. California
  4. Northridge
  5. Surgery
  6. NPI Profile

MR. WALID S. ARNAOUT M.D.
NPI 1023072816
Surgery in Northridge, CA

Active since April 17, 2006PECOS EnrolledAccepts Medicare Assignment
87.59/100
CMS Quality Rating
18250 ROSCOE BLVD STE 220, NORTHRIDGE, CA 91325(818) 280-3901(805) 379-9695 Get Directions Write a Review

NPPES record last updated: October 10, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Oct 10, 2023, Jan 23, 2019 (2 updates tracked since 2019).

About Mr. Walid S. Arnaout M.d. NPPES

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

MR. WALID S. ARNAOUT M.D. (NPI 1023072816) is an individual surgery provider in Northridge, California, licensed in California (A53180) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1985).

NPPES Registry Identity

NPI1023072816
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameMR. WALID S. ARNAOUTCredential: M.D.
Location Address18250 ROSCOE BLVD STE 220Northridge, CA 91325-4271
Mailing Address18250 Roscoe Blvd Ste 220Northridge, CA 91325-4271 · (818) 280-3901 · Fax (805) 379-9695
Phone(818) 280-3901
Fax(805) 379-9695
Sole ProprietorYes
Medical School CMSOtherGraduated 1985
Enumeration DateApril 17, 2006
Last NPPES UpdateOctober 10, 20232 updates tracked since enumeration
NPPES CertifiedOctober 10, 2023
✔ NPI 1023072816 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A53180
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Trauma SurgeryTaxonomy 2086S0127X · License A53180 (CA)
18250 ROSCOE BLVD STE 220, Northridge, CA 91325
Open in Google Maps ↗

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

Mr. Walid S. Arnaout 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 ID3678517109
PECOS Enrollment IDI20050615001012
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 10

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
120 services91 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
112 services58 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
65 services65 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
40 services30 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
34 services25 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
27 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91325 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
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
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.

87.59/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.94
Improvement Activities40

Other Providers at the Same Location NPPES 4

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

WALID S ARNAOUT MD A MEDICAL CORPORATION
Surgery
18250 ROSCOE BLVD STE 220
NORTHRIDGE, CA 91325
Los Angeles County (818) 280-3901
OAKS SURGICAL SPECIALISTS, A MEDICAL CORPORATION
Surgery
18250 ROSCOE BLVD STE 220
NORTHRIDGE, CA 91325
Los Angeles County (818) 280-3901
SHAUNT KORKOUNIAN PA
Physician Assistant (Surgical)
18250 ROSCOE BLVD STE 220
NORTHRIDGE, CA 91325
Los Angeles County (607) 274-3011
AIMAQ MEDICAL CORPORATION
Surgery (Surgical Oncology)
18250 ROSCOE BLVD STE 220
NORTHRIDGE, CA 91325
Los Angeles County (818) 280-3901

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 Walid Arnaout's NPI number?

The NPI number for Walid Arnaout is 1023072816. It was assigned to this individual provider in the NPPES registry on April 17, 2006.

Where is Walid Arnaout located?

Walid Arnaout practices at 18250 Roscoe Blvd Ste 220, Northridge, CA 91325. The listed phone number is (818) 280-3901.

What is Walid Arnaout's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Walid Arnaout enrolled in Medicare?

Yes. Walid Arnaout 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 Walid Arnaout was last updated on October 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.