NPPES file of Aug 9, 2026

John David Purviance, M.D.

Radiation Oncology Physician · Casper, WY

John David Purviance, M.D. is a radiation oncology physician with a practice address in Casper, Wyoming, and NPI 1437279692, issued on Mar 30, 2007. Check the license (Wyoming 7688A, as entered in NPPES) on the Wyoming Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437279692
Name
John David Purviance
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
7688A WY
Self-reported in NPPES; status is on the state search
Practice location
6501 E 2ND St, Casper, WY 82609
Phone
(307) 235-5433
Enumerated
Mar 30, 2007
Record last updated
Mar 9, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(307) 233-4700
Medicaid ID
121006800 WY
Medicare enrollment
Enrolled (PECOS I20070816000663); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2002
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6501 E 2ND St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Adam Beighley, MDRadiation Oncology Physician1659959286
  2. Michelle Buell, MSN, APRN, FNP-CStudent in an Organized Health Care Education/Training Program1720904139
  3. Iloabueke Chineke, MDMedical Oncology Physician1740700798
  4. Christian Dequet, D.O.Rheumatology Physician1639195357
  5. Gail Enyert, RN, MS, NPCFamily Nurse Practitioner1306813647
  6. Elie Fahed, M.D.Medical Oncology Physician1356492482

Verify John David Purviance in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWyoming Board of Medicine
    Search for license 7688A
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wyoming license search

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5.0 times the Medicare Part D claims of the average radiation oncology physician in 2024

665 Medicare Part D claims for 185 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 60 claims were for opioids.

  1. John Purviance665
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl272 claims
  2. Levothyroxine Sodium42 claims
  3. Ciprofloxacin Hcl20 claims
  4. Methylprednisolone18 claims
  5. Oxycodone Hcl18 claims
  6. Lamotrigine16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 58.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score47.8
  2. Costout of 100 · 30%57.4
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $904.08

48 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Purviance$904.08
  2. Specialty average$1,897.85

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Rocky Mountain Oncology Center LLCCasper, WY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Radiation Oncology Physician providers in Wyoming

There are 7 radiation oncology physician records in Wyoming.

Other radiation oncology physician records in Wyoming

  1. Adam Beighley, MDCasper, WY1659959286
  2. Joshua Binks, M.D.Rock Springs, WY1699161182
  3. Jeffrey Carlton, M.D.Cheyenne, WY1538268305
  4. Subashini Furman, MDCheyenne, WY1366508814
  5. Sarah Glynn, DOCasper, WY1023696622
  6. Robert Tobin, MDCasper, WY1912967050

Common questions

What is John David Purviance, M.D.'s NPI number?

John David Purviance, M.D.'s National Provider Identifier (NPI) is 1437279692, issued on Mar 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John David Purviance, M.D. located?

The NPPES record lists a practice address at 6501 E 2ND St, Casper, WY, 82609. Phone: (307) 235-5433. Providers update this record themselves, so call before visiting.

How can I verify John David Purviance, M.D.'s license?

NPPES lists Wyoming license number 7688A, as entered by the provider. Search the Wyoming Board of Medicine at https://wyomedboard.wyo.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John David Purviance, M.D. prescribe under Medicare Part D?

In 2024, John David Purviance, M.D. had 665 Medicare Part D claims for 185 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is John David Purviance, M.D.'s MIPS final score?

The 2023 MIPS final score is 58.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.