DR. NICHOLAS IVAN SIKIC M.D,
NPI 1356590764
Pediatrics in Tucson, AZ

Active since September 10, 2008PECOS Enrolled
1501 N CAMPBELL AVE, TUCSON, AZ 85724(520) 694-6000 Get Directions Write a Review

NPPES record last updated: September 10, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Nicholas Ivan Sikic M.d, NPPES

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

DR. NICHOLAS IVAN SIKIC M.D, (NPI 1356590764) is an individual pediatrics provider in Tucson, Arizona, licensed in Arizona (R71046) and active in the NPI registry since September 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356590764
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. NICHOLAS IVAN SIKICCredential: M.D,
Location Address1501 N CAMPBELL AVETucson, AZ 85724-0001
Mailing Address927 E Caddie StTucson, AZ 85719-5328
Sole ProprietorYes
Enumeration DateSeptember 10, 2008
✔ NPI 1356590764 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in AZ · R71046
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1501 N CAMPBELL AVE, Tucson, AZ 85724

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Nicholas Ivan Sikic M.d, is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Nicholas Sikic reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Federally Qualified Health Center (FQHC)
7475 CAMINO ARROYO
Gilroy, CA 95020
  • Reassigned Medicare billing, California enrollment
  • 2,460 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85724 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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.

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.

Perfusionist
1501 N CAMPBELL AVE, SUITE 4402 ARIZONA HEALTH SCIENCE CENTER
TUCSON, AZ 85724
Pediatrics
1501 N CAMPBELL AVE
TUCSON, AZ 85724
Obstetrics & Gynecology
1501 N CAMPBELL AVE
TUCSON, AZ 85724
Pediatrics
1501 N CAMPBELL AVE
TUCSON, AZ 85724
Anesthesiology
1501 N CAMPBELL AVE
TUCSON, AZ 85724
Emergency Medicine
1501 N CAMPBELL AVE
TUCSON, AZ 85724
Radiology (Radiation Oncology)
1501 N CAMPBELL AVE
TUCSON, AZ 85724
Pathology (Neuropathology)
1501 N CAMPBELL AVE
TUCSON, AZ 85724

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 Nicholas Sikic's NPI number?

The NPI number for Nicholas Sikic is 1356590764. It was assigned to this individual provider in the NPPES registry on September 10, 2008.

Where is Nicholas Sikic located?

Nicholas Sikic practices at 1501 N Campbell Ave, Tucson, AZ 85724. The listed phone number is (520) 694-6000.

What is Nicholas Sikic's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Nicholas Sikic enrolled in Medicare?

Yes. Nicholas Sikic is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nicholas Sikic's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Sikic reassigns Medicare benefits to County Of Santa Clara (Gilroy, CA). The 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 Nicholas Sikic's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nicholas Sikic was last updated on September 10, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.