Janet Marie Nettleton, M.D.

Radiation Oncology (CMS) · Sierra Vista, AZ

Call (520) 803-6644 Directions

At a glance

5151 E Hwy 90, Sierra Vista, AZ 85635

NPPES record updated Feb 21, 2013. Public records can lag behind changes at a practice.

Before you call: a quick checklist
  • Are you accepting new patients?
  • Do you accept my specific insurance plan?
  • Do you provide the service I need at this address?
  • Do I need a referral, and what is the earliest appointment?

Insurance participation and appointment availability are not established by these public records.

Medicare & insurance

Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.

How to check your coverage

Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.

Check the official Medicare directory ↗

Practice location

5151 E Hwy 90
Sierra Vista, AZ 85635
REPORTED BACKGROUND

Education & affiliations

Medical / professional school
Eastern Virginia Medical School
Graduation year
1992
CMS specialties
Radiation Oncology

Practice groups

Reported hospital affiliations

Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.

Source: CMS National Downloadable File · Published Oct 15, 2026.

Source: CMS Facility Affiliation Data · Published Oct 15, 2026.

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PUBLISHED MEDICARE ACTIVITY

Procedures in the public data

Reported activity can help you ask more informed questions about a practice’s services.

No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.

CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology

Source: CMS Utilization Data · Published Oct 15, 2026.

Find providers with a similar service mix

Compare 2024 published Medicare activity in the same reported specialty, here or in another city.

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Reported clinician measures

Measures below describe reported clinician performance in the stated period. They do not form an overall HCPList rating, and reporting differs between clinicians.

Published clinical measures

Advance Care Plan
100%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_047_overall. Collection type: REG. Measure denominator: 221.

Source: PY 2024 Clinician Public Reporting: MIPS Measures and Attestations · Published Sep 10, 2026.

PAYMENT TRANSPARENCY

Industry-reported general payments

$932.51General payments · 2025
41Reported transactions
22Reporting companies

Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.

See payment purposes and reporting companies

Reported purposes

PurposeAmount
Food and beverage$932.51

Reporting companies

CompanyAmount
JANSSEN BIOTECH, INC.$87.74
NOVARTIS PHARMACEUTICALS CORPORATION$87.06
MERCK SHARP & DOHME LLC$83.89
PFIZER INC.$69.83
LILLY USA, LLC$57.24
GENZYME CORPORATION$52.57
ASTELLAS PHARMA US INC$51.36
COHERUS ONCOLOGY, INC.$50.28
Other reporting companies$392.54
View official Open Payments profile ↗

Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.

Professional details: NPI, taxonomy & registry record
NPI1285698720
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Registry details

Primary taxonomy
Radiation Oncology (CMS)
Taxonomy code
2085R0203X
Enumeration date
Apr 13, 2006
Record updated
Feb 21, 2013
More registry details
Provider type
Individual · Type 1
Reported credentials
M.D.

Reported taxonomies and licenses

Specialty details in registry

2085R0203X · Primary

License reported: 27594 AZ

License numbers and credentials are reported to NPPES; HCPList does not independently verify them.

Practice location

5151 E Hwy 90
Sierra Vista, AZ 85635
Phone
(520) 803-6644
Fax
(520) 459-3193
Mailing address
5151 E HIGHWAY 90

SIERRA VISTA, AZ 856352436
Source: NPPES Source through Oct 18, 2026An NPI does not verify licensure or credentials.

Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.

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