Doctor Profile

Cancer Care · Radiation Oncology

Gregory S. Willis

MD · Radiation Oncology · Oregon Health Sciences University School Of Medicine
2669 SCENIC DR
Alamogordo, NM 88310
✓ Accepts Medicare 🎓 27+ Years Practicing
541
Medicare Patients / yr
15
Procedures Billed
27
Years Practicing
1
Hospital Affiliations
Data Source: Identity from NPPES (2026). Procedure & patient volume from CMS Medicare Provider Utilization & Payment Data (2023). Hospital affiliations from CMS Physician Compare. We display publicly reported data — no personal information required to view any of it.
Reviewed by: Wes Ward, Founder & Data Lead • View our methodology

Important: We are not affiliated with Medicare, CMS, or Gregory S. Willis's practice. This page displays publicly available CMS data to help you research Medicare providers. We do not sell insurance or represent any insurance company. For official enrollment and complete plan information, visit Medicare.gov or call 1-800-MEDICARE.

Medicare Plans That Cover Dr. Willis

See which plans Dr. Willis accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for New Mexico, the fastest way to find a Medicare plan that covers Dr. Willis is to compare every Medicare Advantage and Part D plan available near 88310, NM — the Radiation Oncology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 88310, NM →

Or call the office at (505) 439-6100 to confirm acceptance directly.

What Dr. Willis Does

Dr. Willis served 541 Medicare patients across 1,511 services in the latest CMS reporting year. That's similar to the average Radiation Oncology in New Mexico (607 patients across 19 doctors).

ProcedureServicesMedicare Patients
Ct guidance for insertion of radiation therapy fields (77014)46426
Design and construction of complex radiation treatment device (77334)19645
Radiation treatment management, 5 treatment sessions (77427)19446
Established patient office or other outpatient visit, 20-29 minutes (99213)178144
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)15111

How to read this: "Services" are the total times Dr. Willis billed Medicare for each procedure in the latest reporting year. "Patients" counts unique Medicare beneficiaries. Procedures are shown in plain English; the underlying HCPCS codes are available on request.

Hospital Affiliations

Dr. Willis is affiliated with 1 hospital in the CMS Physician Compare database. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Christus Southern New Mexico

Alamogordo, NM
★★★☆☆ 3/5 CMS Rating

Practice Location & Telehealth Readiness

Dr. Willis practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Willis offers telehealth — broadband availability at your home matters for virtual visits.

Address: 2669 SCENIC DR, Alamogordo, NM 88310
Phone: (505) 439-6100

Area Safety Grade

D+

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

24 min

Average commute time in this zip · 90% of residents drive to work. Practical context for patients deciding whether to make the trip. See the full neighborhood profile at BestNeighborhood.org.

Telehealth Readiness

22.9475

Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.

Get directions on Google Maps →

Other Cancer Care Doctors near 88310, NM

If Dr. Willis isn't accepting new patients or isn't in your plan's network, these are the closest cancer care doctors near 88310, NM:

DoctorSpecialtyMedicare Patients / yrDistance
Madhuri KadiyalaHematology/Oncology4302.1 mi
David Adam JonesRadiation Oncology1772.1 mi
Montaser F. ShaheenHematology/Oncology532134.5 mi
Stephen J. IacoboniMedical Oncology—219.9 mi
Rohit SudHematology/Oncology1.5K334.8 mi

View all cancer care doctors near 88310, NM →

How to Use This Information

Choosing a Medicare plan that covers Dr. Willis takes three steps:

Compare Medicare Plans near 88310, NM → All Doctors near 88310, NM

Gregory S. Willis: Common Questions

Does Dr. Willis accept Medicare?
Yes. Dr. Willis is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Willis depends on that plan's provider network. Compare Medicare plans near 88310, NM →
Where is Dr. Willis's office?
Dr. Willis practices at 2669 SCENIC DR, Alamogordo, NM 88310. Phone: (505) 439-6100.
What Medicare plans does Dr. Willis accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (505) 439-6100 to confirm your specific plan is accepted, or compare all Medicare plans near 88310, NM to see available options.
Does Dr. Willis offer telehealth visits?
CMS does not currently list Dr. Willis as offering telehealth. Call the office at (505) 439-6100 to confirm whether virtual visits are available.
How experienced is Dr. Willis?
Dr. Willis graduated in 1999 and has been practicing for approximately 27 years. In the latest CMS reporting year, Dr. Willis treated 541 Medicare patients across 15 distinct procedure types.
How do I know if Dr. Willis is in-network for my Medicare plan?
Network status varies by plan. The best verification steps: (1) check your plan's provider directory at the carrier's website, (2) call the office at (505) 439-6100 and ask which plans they currently accept, and (3) call the number on the back of your Medicare card. Print our doctor questions checklist →

About the Reviewer

Wes Ward

Wes Ward

Founder & Data Lead

Wes Ward reviews all doctor profiles and methodology for data accuracy. Every Medicare provider page on this site — including the utilization statistics, hospital affiliations, and geocoded practice address — goes through his data-validation pipeline before publication. We display only publicly available CMS data; you never need to enter personal information to see any of it.

With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org (neighborhood data), CrimeGrade.org (block-level safety analytics), and ISPReports.org (broadband availability for telehealth). Those sister sites power the location and telehealth-readiness context on this page.

View full profile → • LinkedIn

Data sources: CMS NPPES (2026), CMS Medicare Provider Utilization & Payment Data (2023), CMS Physician Compare, CrimeGrade.org, BestNeighborhood.org, ISPReports.org. This page is for informational purposes only. Always verify coverage directly with the plan and practice. Read our full methodology → • Privacy policy

Medicare Resources

Choosing the right Medicare plan involves more than just doctor coverage. These guides help you evaluate the full picture:

Medicare Plans for Conditions Treated by Cancer Care Specialists

See which Medicare plans score highest for conditions commonly managed by this specialty in 88310, NM:

Does your Medicare plan cover Dr. Willis?

Compare Plans near 88310, NM →