Doctor Profile

Cancer Care · Medical Oncology

Wes S. Lee

MD · Medical Oncology · University Of California, Geffen School Of Medicine
110 LYNCH CREEK WAY
SUITE A
Petaluma, CA 94954
✓ Accepts Medicare 💻 Offers Telehealth 🎓 33+ Years Practicing
670
Medicare Patients / yr
8
Procedures Billed
33
Years Practicing
5
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 Wes S. Lee'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. Lee

See which plans Dr. Lee accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for California, the fastest way to find a Medicare plan that covers Dr. Lee is to compare every Medicare Advantage and Part D plan available near 94954, CA — the Medical Oncology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 94954, CA →

Or call the office at (707) 763-0600 to confirm acceptance directly.

What Dr. Lee Does

Dr. Lee served 670 Medicare patients across 1,577 services in the latest CMS reporting year. That's similar to the average Medical Oncology in California (625 patients across 249 doctors).

ProcedureServicesMedicare Patients
Established patient office or other outpatient visit, 40-54 minutes (99215)650213
Established patient office or other outpatient visit, 30-39 minutes (99214)384188
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)293112
New patient office or other outpatient visit, 60-74 minutes (99205)8787
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (G0316)8121

How to read this: "Services" are the total times Dr. Lee 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. Lee is affiliated with 5 hospitals according to CMS Physician Compare. Below are the 5 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Adventist Health Ukiah Valley

Ukiah, CA
★★★★☆ 4/5 CMS Rating

Providence Santa Rosa Memorial Hospital

Santa Rosa, CA
★★☆☆☆ 2/5 CMS Rating

Adventist Health Mendocino Coast

Fort Bragg, CA
★☆☆☆☆ 1/5 CMS Rating

Sonoma Valley Hospital

Sonoma, CA
★☆☆☆☆ 1/5 CMS Rating

Healdsburg Hospital

Healdsburg, CA
Rating not available

Practice Location & Telehealth Readiness

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

Address: 110 LYNCH CREEK WAY, SUITE A, Petaluma, CA 94954
Phone: (707) 763-0600

Area Safety Grade

C-

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

38 min

Average commute time in this zip · 78% 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

47.8378

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 94954, CA

If Dr. Lee isn't accepting new patients or isn't in your plan's network, these are the closest cancer care doctors near 94954, CA:

DoctorSpecialtyMedicare Patients / yrDistance
Sara A. KeckHematology/Oncology184<1 mi
Jarrod P. HolmesMedical Oncology983<1 mi
Anna K. PaulssonRadiation Oncology892<1 mi
Ian C. AndersonHematology/Oncology920<1 mi
Leroy W. KeiserMedical Oncology1.0K<1 mi

View all cancer care doctors near 94954, CA →

How to Use This Information

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

Compare Medicare Plans near 94954, CA → All Doctors near 94954, CA

Wes S. Lee: Common Questions

Does Dr. Lee accept Medicare?
Yes. Dr. Lee is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Lee depends on that plan's provider network. Compare Medicare plans near 94954, CA →
Where is Dr. Lee's office?
Dr. Lee practices at 110 LYNCH CREEK WAY, SUITE A, Petaluma, CA 94954. Phone: (707) 763-0600.
What Medicare plans does Dr. Lee accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (707) 763-0600 to confirm your specific plan is accepted, or compare all Medicare plans near 94954, CA to see available options.
Does Dr. Lee offer telehealth visits?
Dr. Lee is registered with Medicare as offering telehealth services. Most Medicare Advantage plans cover telehealth visits at the same or similar cost as in-person visits. Check broadband availability in your area to ensure reliable connectivity for video visits.
How experienced is Dr. Lee?
Dr. Lee graduated in 1993 and has been practicing for approximately 33 years. In the latest CMS reporting year, Dr. Lee treated 670 Medicare patients across 8 distinct procedure types.
How do I know if Dr. Lee 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 (707) 763-0600 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 94954, CA:

Does your Medicare plan cover Dr. Lee?

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