Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MEHMET KOCAK MD
NPI 1255382099
Radiology - Diagnostic Radiology in Las Vegas, NV

Active since May 15, 2006PECOS Enrolled
1800 W CHARLESTON BLVD, LAS VEGAS, NV 89102(702) 383-3648(702) 383-2627 Get Directions Write a Review

NPPES record last updated: November 5, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 5, 2026, Oct 20, 2021 (2 updates tracked since 2021).

About Dr. Mehmet Kocak Md NPPES

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

DR. MEHMET KOCAK MD (NPI 1255382099) is an individual diagnostic radiology provider in Las Vegas, Nevada, licensed in Nevada (30587) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1255382099
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. MEHMET KOCAKCredential: MD
Location Address1800 W CHARLESTON BLVDLas Vegas, NV 89102-2329
Mailing Address1800 W Charleston BlvdLas Vegas, NV 89102-2386 · (702) 383-2799
Fax(702) 383-2627
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateMay 15, 2006
Last NPPES UpdateNovember 5, 20262 updates tracked since enumeration
NPPES CertifiedNovember 5, 2026
✔ NPI 1255382099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in NV · 30587
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedRadiology · NeuroradiologyTaxonomy 2085N0700X · License 036124519 (IL)
1800 W CHARLESTON BLVD, Las Vegas, NV 89102

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mehmet Kocak Md 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 ID941379960
PECOS Enrollment IDI20100507000140, I20230217000860
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Mehmet Kocak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
2011 YORK ROAD, 2ND FLOOR
Oak Brook, IL 60523
  • Reassigned Medicare billing, Illinois and Indiana enrollments
  • Medicare enrollment name: Rush University Medical Group
  • Also billed through NPI 1093819542 (Indiana)
  • 2,169 clinicians in this Medicare group
Internal Medicine
1620 W HARRISON ST
Chicago, IL 60612
  • Reassigned Medicare billing, Illinois and Indiana enrollments
  • 548 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 33

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.

Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
439 services375 patients
Mri scan of brain before and after contrast 70553
An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.
150 services144 patients
Mri scan of brain without contrast 70551
An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.
114 services114 patients
X-ray of lower and sacral spine, minimum of 4 views 72110
An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.
92 services92 patients
Ct scan of upper spine without contrast 72125
A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.
79 services79 patients
Ct scan of soft tissue of neck with contrast 70491
A CT scan of the neck with contrast is a non-invasive imaging procedure. A special dye is administered to highlight the soft tissues in your neck, making them easier to see. This helps detect issues like infections, tumors, or other abnormalities.
72 services69 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Rush Oak Park Hospital

Acute Care Hospitals · Oak Park, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140063
Location520 S Maple AveOak Park, IL 60304 · Cook County
Emergency services

Rush University Medical Center

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140119
Location1653 West Congress ParkwayChicago, IL 60612 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89102 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
$88.51 typical visit price
range $57.07 – $173.24
Typical copayment $22.12 (range $14.26 – $43.31)
Most-billed visit code 99203
Established Patient
$71.14 typical visit price
range $18.27 – $140.96
Typical copayment $17.78 (range $4.56 – $35.24)
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.

Other Providers at the Same Location NPPES 20

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

Internal Medicine
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Family Medicine
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Student in an Organized Health Care Education/Training Program
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Radiology (Diagnostic Radiology)
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Emergency Medicine
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Dietitian, Registered
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Dietitian, Registered
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Nurse Anesthetist, Certified Registered
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102

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 Mehmet Kocak's NPI number?

The NPI number for Mehmet Kocak is 1255382099. It was assigned to this individual provider in the NPPES registry on May 15, 2006.

Where is Mehmet Kocak located?

Mehmet Kocak practices at 1800 W Charleston Blvd, Las Vegas, NV 89102. The listed phone number is (702) 383-3648.

What is Mehmet Kocak's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Mehmet Kocak enrolled in Medicare?

Yes. Mehmet Kocak 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.

Which organizations bill Medicare for Mehmet Kocak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mehmet Kocak reassigns Medicare benefits to 2 organizations: Rush University Medical Center (Oak Brook, IL) and Rush Medical Group (Chicago, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mehmet Kocak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mehmet Kocak affiliated with any hospitals?

According to CMS data, Mehmet Kocak is affiliated with Rush Oak Park Hospital and Rush University Medical Center.

When was this NPI record last updated?

The NPPES record for Mehmet Kocak was last updated on November 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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.