GREGORY GAN MD, PHD
NPI 1568698561
Radiology - Radiation Oncology in Kansas City, KS
About Gregory Gan Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY GAN MD, PHD (NPI 1568698561) is an individual radiation oncology provider in Kansas City, Kansas, licensed in Kansas (04-42204) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with University Of Kansas Hospital, and is a graduate of University Of Pittsburgh School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses
Accepted 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 Gan Md, Phd 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.
Medicare Billing Reassignments
3Medicare enrollment records show Gregory Gan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kansas City, KS 66160
- Reassigned Medicare billing, Kansas and Missouri enrollments
- Also billed through NPI 1053457978 (Missouri)
- 2,139 clinicians in this Medicare group
Valley Falls, KS 66088
- Reassigned Medicare billing, Kansas enrollment
- 215 clinicians in this Medicare group
Albuquerque, NM 87106
- Reassigned Medicare billing, New Mexico enrollment
- 2,105 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 14
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Kansas Hospital
Acute Care Hospitals · Kansas City, KSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 66160 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Gan's NPI number?
The NPI number for Gregory Gan is 1568698561. It was assigned to this individual provider in the NPPES registry on June 4, 2009.
Where is Gregory Gan located?
Gregory Gan practices at 4001 Rainbow Blvd # Ms 4001, Kansas City, KS 66160. The listed phone number is (913) 588-3600.
What is Gregory Gan's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Gregory Gan enrolled in Medicare?
Yes. Gregory Gan 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 Gan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Gan reassigns Medicare benefits to 3 organizations: Kansas University Physicians Inc (Kansas City, KS), Topeka Physician Group, LLC (Valley Falls, KS) and Unm Medical Group Inc (Albuquerque, NM). 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 Gan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Gan accept?
Health plans from Blue Cross and Blue Shield of Kansas City, Blue Cross and Blue Shield of Kansas, Inc. and Oscar Insurance Company list Gregory Gan 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.
Is Gregory Gan affiliated with any hospitals?
According to CMS data, Gregory Gan is affiliated with University Of Kansas Hospital.
When was this NPI record last updated?
The NPPES record for Gregory Gan was last updated on September 11, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Gregory Gan, MD, PHD · NPI 1568698561
Radiation Oncology physician in Kansas City, Kansas. Individual provider, active in the CMS NPPES registry since June 4, 2009.
## Identity
- **NPI:** 1568698561 (Entity type: Individual)
- **Enumerated:** June 4, 2009
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **State license:** 04-42204 (Kansas)
- **Sole proprietor:** No
## Practice location
- **Address:** 4001 RAINBOW BLVD # MS 4001, Kansas City, KS 66160-4374
- **Phone:** (913) 588-3600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Pittsburgh School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** September 11, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1568698561) · Data from the CMS NPPES public registry.