1. Home
  2. Directory
  3. Arizona
  4. Phoenix
  5. Internal Medicine
  6. NPI Profile

GREGORY MICHAEL GIANCANA
NPI 1093456071
Internal Medicine in Phoenix, AZ

Active since April 05, 2022PECOS EnrolledAccepts Medicare Assignment
1300 N 12TH ST STE 508, PHOENIX, AZ 85006(602) 839-3927(602) 839-4233 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 11, 2025, Jun 12, 2025, Apr 5, 2022 (3 updates tracked since 2022).

About Gregory Michael Giancana NPPES

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

GREGORY MICHAEL GIANCANA (NPI 1093456071) is an individual internal medicine provider in Phoenix, Arizona, licensed in Arizona (76077) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1093456071
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGREGORY MICHAEL GIANCANA
Location Address1300 N 12TH ST STE 508Phoenix, AZ 85006-2849
Mailing Address19615 42nd RdFlushing, NY 11358-3017 · (602) 466-4556
Phone(602) 839-3927
Fax(602) 839-4233
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateApril 5, 2022
Last NPPES UpdateSeptember 11, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 11, 2025
✔ NPI 1093456071 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 76077
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1300 N 12TH ST STE 508, Phoenix, AZ 85006
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Plan, Inc..Insurance ›

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

Gregory Michael Giancana 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 ID6608255401
PECOS Enrollment IDI20250624003612
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

3

Medicare enrollment records show Gregory Giancana reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Banner Cancer Center Specialists LLC
1.5 mi
Oncology
2901 N CENTRAL AVE STE 160
Phoenix, AZ 85012
  • Reassigned Medicare billing, Arizona enrollment
  • 470 clinicians in this Medicare group
NPI 1518253152 (602) 747-4000
Banner - University Hospital Based Physicians LLC
1.5 mi
General Acute Care Hospital
2901 N CENTRAL AVE STE 160
Phoenix, AZ 85012
  • Reassigned Medicare billing, Arizona enrollment
  • 728 clinicians in this Medicare group
NPI 1750751566 (602) 747-4000
Banner -- University Primary Care Physicians LLC
68 mi
Primary Care
807 S PONDEROSA ST
Payson, AZ 85541
  • Reassigned Medicare billing, Arizona enrollment
  • 66 clinicians in this Medicare group
NPI 1154791960 (928) 471-3222

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 85006 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
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.

TREVIN REYES MD
Student in an Organized Health Care Education/Training Program
1300 N 12TH ST STE 508
PHOENIX, AZ 85006
Maricopa County (602) 839-3927
HUGH ALESSI MD
Internal Medicine
1300 N 12TH ST STE 508
PHOENIX, AZ 85006
Maricopa County (602) 839-3927
FADI JIRYIS KHOURY MD
Internal Medicine
1300 N 12TH ST STE 508
PHOENIX, AZ 85006
Maricopa County (602) 839-3927
BRITTNAY MAGGIE HONG MD
Student in an Organized Health Care Education/Training Program
1300 N 12TH ST STE 508
PHOENIX, AZ 85006
Maricopa County (602) 839-3927
JAKE BALDASARE MD
Student in an Organized Health Care Education/Training Program
1300 N 12TH ST STE 508
PHOENIX, AZ 85006
Maricopa County (602) 839-3927
DR. CECIL K BABUL
Student in an Organized Health Care Education/Training Program
1300 N 12TH ST STE 508
PHOENIX, AZ 85006
Maricopa County (602) 839-3927
DR. SYDNEY KRISTIN MILLER TOWNSEND MD
Student in an Organized Health Care Education/Training Program
1300 N 12TH ST STE 508
PHOENIX, AZ 85006
Maricopa County (602) 839-3927
DR. VICTORIA RENE RAMIREZ DO
Internal Medicine
1300 N 12TH ST STE 508
PHOENIX, AZ 85006
Maricopa County (602) 839-3927

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 Gregory Giancana's NPI number?

The NPI number for Gregory Giancana is 1093456071. It was assigned to this individual provider in the NPPES registry on April 5, 2022.

Where is Gregory Giancana located?

Gregory Giancana practices at 1300 N 12th St Ste 508, Phoenix, AZ 85006. The listed phone number is (602) 839-3927.

What is Gregory Giancana's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gregory Giancana enrolled in Medicare?

Yes. Gregory Giancana 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 Gregory Giancana's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Giancana reassigns Medicare benefits to 3 organizations: Banner Cancer Center Specialists LLC (Phoenix, AZ), Banner - University Hospital Based Physicians LLC (Phoenix, AZ) and Banner -- University Primary Care Physicians LLC (Payson, AZ). 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 Gregory Giancana's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Giancana accept?

Health plans from Oscar Health Plan, Inc. list Gregory Giancana as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Giancana was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.