John David Purviance, M.D.
Radiation Oncology (CMS) · Casper, WY
At a glance
6501 E 2Nd St, Casper, WY 82609-4293
NPPES record updated Mar 9, 2016. 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
6501 E 2Nd St Rocky Mountain Oncology CenterCasper, WY 82609-4293
Education & affiliations
- Medical / professional school
- Tufts University School Of Medicine
- Graduation year
- 2002
- CMS specialties
- Radiation Oncology
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Banner Wyoming Medical Center Casper, WY
- Ivinson Memorial Hospital Laramie, WY
- Memorial Hospital Of Converse County Douglas, WY
- North Platte Valley Medical Center Saratoga, WY
- Sagewest Health Care Riverton, WY
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.
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.
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
- 28%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_047_overall. Collection type: REG. Measure denominator: 489.
- Documentation of Current Medications in the Medical Record
- 94%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_130_overall. Collection type: EHR. Measure denominator: 923.
- Preventive Care and Screening: Screening for Depression and Follow-Up Plan
- 0%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_134_overall. Collection type: EHR. Measure denominator: 630.
See all 9 reported measures
- Oncology: Medical and Radiation - Pain Intensity Quantified
- 91%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_143_overall. Collection type: EHR. Measure denominator: 339.
- Oncology: Medical and Radiation - Plan of Care for Pain
- 19%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_144_overall. Collection type: REG. Measure denominator: 234.
- Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
- 86%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_226_performance. Collection type: EHR. Measure denominator: 22.
- Use of High-Risk Medications in Older Adults
- 1%2024Published MIPS performance rate. Lower rates indicate better performance for this inverse measure. Measure: MIPS_EC_238_overall. Collection type: EHR. Measure denominator: 493.
- Cervical Cancer Screening
- 51%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_309_overall. Collection type: EHR. Measure denominator: 39.
- Falls: Screening for Future Fall Risk
- 64%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_318_overall. Collection type: EHR. Measure denominator: 471.
Source: PY 2024 Clinician Public Reporting: MIPS Measures and Attestations · Published Sep 10, 2026.
Industry-reported general payments
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
| Purpose | Amount |
|---|---|
| Food and beverage | $1,195.12 |
Reporting companies
| Company | Amount |
|---|---|
| MERCK SHARP & DOHME LLC | $143.98 |
| ABBVIE INC. | $114.41 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $94.30 |
| ASTRAZENECA PHARMACEUTICALS LP | $86.26 |
| PFIZER INC. | $84.66 |
| SUMITOMO PHARMA AMERICA, INC. | $76.09 |
| EISAI INC. | $53.01 |
| ACCORD HEALTHCARE, INC. | $51.75 |
| Other reporting companies | $490.66 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Radiation Oncology (CMS)
- Taxonomy code
- 2085R0001X
- Enumeration date
- Mar 30, 2007
- Record updated
- Mar 9, 2016
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
2085R0001X · Primary
License reported: 7688A WY
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
6501 E 2Nd StRocky Mountain Oncology Center
Casper, WY 82609-4293
- Phone
- (307) 235-5433
- Fax
- (307) 233-4700
Mailing address
6501 E 2ND STCASPER, WY 826094293
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue