Douglas Brent Rock, M.D.
Radiation Oncology Physician · Grand Junction, CO
Douglas Brent Rock, M.D. is a radiation oncology physician with a practice address in Grand Junction, Colorado, and NPI 1275531725, issued on Jul 8, 2005. Check the license (Colorado 36547, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Douglas Brent Rock
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 36547 CO
Self-reported in NPPES; status is on the state search - Practice location
- 750 Wellington Ave, Grand Junction, CO 81501
- Phone
- (970) 244-2442
- Enumerated
- Jul 8, 2005
- Record last updated
- Jul 2, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (970) 244-7008
- Medicaid ID
- 1365477 CO
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 111 in Colorado → Look up another NPI →
Also registered at 750 Wellington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Basheal Agrawal, M.D.Neurological Surgery Physician1154365153
- Michelle Akcar, PHARMDPharmacist1205272283
- Michael Appel, PHARMDOncology Pharmacist1487822540
- Scott Donohue, RPHOncology Pharmacist1376981431
- Richard Gibson, MDHematology & Oncology Physician1396721973
- Lucas Gilbride, MDRadiation Oncology Physician1891109559
Verify Douglas Brent Rock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 36547Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average radiation oncology physician in 2024
19 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Tamsulosin Hcl19 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.
Douglas Brent Rock among 111 radiation oncology physician records in Colorado
Douglas Brent Rock, M.D. is one of 111 radiation oncology physician records with a practice address in Colorado. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 79% of these records are
- Record last updated2010 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Colorado
There are 111 radiation oncology physician records in Colorado.
All 111 in Colorado → Every provider in Grand Junction → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Lucas Gilbride, MDGrand Junction, CO 815011891109559
- Vernon King, M.D.Grand Junction, CO 815011649278003
- Yu ZhouGrand Junction, CO 815011215420427
- Jack Bagley, M.D.Grand Junction, CO 815051225355670
- Gayle Miller, M.D.Grand Junction, CO 815051033117643
- Bruce Greene, MDGlenwood Springs, CO 816011437166139
- Peter Rossi, M.D.Glenwood Springs, CO 816011851338545
- David Marcus, M.D.Carbondale, CO 816231306089362
Common questions
What is Douglas Brent Rock, M.D.'s NPI number?
Douglas Brent Rock, M.D.'s National Provider Identifier (NPI) is 1275531725, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Brent Rock, M.D. located?
The NPPES record lists a practice address at 750 Wellington Ave, Grand Junction, CO, 81501. Phone: (970) 244-2442. Providers update this record themselves, so call before visiting.
How can I verify Douglas Brent Rock, M.D.'s license?
NPPES lists Colorado license number 36547, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Douglas Brent Rock, M.D. prescribe under Medicare Part D?
In 2024, Douglas Brent Rock, M.D. had 19 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
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.