Duncan Ross McGregor
Nephrology Physician · Grand Junction, CO
Duncan Ross McGregor is a nephrology physician with a practice address in Grand Junction, Colorado, and NPI 1144409483, issued on Nov 2, 2007. Check the license (Colorado 0058559, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Duncan Ross McGregor
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 0058559 CO
MD155191 OR
60492261205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 2635 N 7TH St, Grand Junction, CO 81501
- Phone
- (970) 298-7106
- Enumerated
- Nov 2, 2007
- Record last updated
- Oct 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (970) 298-7177
- Medicare enrollment
- Enrolled (PECOS I20170817001998); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 182 in Colorado → Look up another NPI →
Also registered at 2635 N 7TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angela Aldoretta, RN, NNPNeonatal Nurse Practitioner1467446245
- Peter Aldoretta, M.D.Neonatal-Perinatal Medicine Physician1790784775
- Westin Amberge, M.D., M.B.A.Emergency Medicine Physician1700176690
- Theresa Anderson, RPARadiology Practitioner Assistant1023774924
- Grant Armour, MDAnesthesiology Physician1467747238
- Megan AtkinPhysician Assistant1487118212
Verify Duncan Ross McGregor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 0058559Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average nephrology physician in 2024
1,662 Medicare Part D claims for 238 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Amlodipine Besylate178 claims
- Furosemide128 claims
- Losartan Potassium115 claims
- Calcitriol92 claims
- Tamsulosin Hcl74 claims
- Lisinopril70 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.
Industry payments in 2024: $114.53
6 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Intermountain Medical Group Grand Junction, LLCGrand Junction, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Duncan Ross McGregor among 182 nephrology physician records in Colorado
Duncan Ross McGregor is one of 182 nephrology physician records with a practice address in Colorado. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 31% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1995 · median 2002 among the 133 with a school on file
- Record last updated2019 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Colorado
There are 182 nephrology physician records in Colorado.
All 182 in Colorado → Every provider in Grand Junction → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Matthew Cyphers, MDGrand Junction, CO 815011437110954
- Kathryn Jones, MDGrand Junction, CO 815011154775179
- Barry Sobel, MDGrand Junction, CO 815011326145038
- Joseph Harawi, M.D.Grand Junction, CO 815061154465888
- Raedene Schmidt, MDGrand Junction, CO 815061215938543
- Alexandra Straight, MDGrand Junction, CO 815061043298854
- Isaac Hall, MD, MSDurango, CO 813011184899981
- Elizabeth Helms, MDDurango, CO 813011144293010
Common questions
What is Duncan Ross McGregor's NPI number?
Duncan Ross McGregor's National Provider Identifier (NPI) is 1144409483, issued on Nov 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Duncan Ross McGregor located?
The NPPES record lists a practice address at 2635 N 7TH St, Grand Junction, CO, 81501. Phone: (970) 298-7106. Providers update this record themselves, so call before visiting.
How can I verify Duncan Ross McGregor's license?
NPPES lists Colorado license number 0058559, 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 Duncan Ross McGregor prescribe under Medicare Part D?
In 2024, Duncan Ross McGregor had 1,662 Medicare Part D claims for 238 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.