Robert J. Doolan, M.D.
Internal Medicine Physician · Aurora, CO
Robert J. Doolan, M.D. is an internal medicine physician with a practice address in Aurora, Colorado, and NPI 1841202884, issued on Aug 11, 2006. Check the license (Colorado 40432, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert J. Doolan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 40432 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1635 Aurora CT, Aurora, CO 80045
- Phone
- (303) 333-5456
- Enumerated
- Aug 11, 2006
- Record last updated
- May 5, 2023
- Fax
- (303) 320-6910
- Medicare enrollment
- Enrolled (PECOS I20110120001058); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 1635 Aurora CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert J. Doolan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 40432Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% more Medicare Part D claims than the average internal medicine physician in 2024
4,358 Medicare Part D claims for 313 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 277 claims were for opioids.
Most prescribed
- Atorvastatin Calcium253 claims
- Rosuvastatin Calcium161 claims
- Amlodipine Besylate145 claims
- Levothyroxine Sodium117 claims
- Omeprazole113 claims
- Losartan Potassium100 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.
Bills Medicare through one group practice
- University Physicians IncorporatedAurora, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert J. Doolan among 2,046 internal medicine physician records in Colorado
Robert J. Doolan, M.D. is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1999 · median 2006 among the 1,090 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
244 internal medicine physician records list a practice address in Aurora
They are 244 of the 17,400 NPPES records with a practice address in Aurora, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Aurora → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Melver Anderson, M.D.Aurora, CO 800451992771109
- Mary Ayers, M.D.Aurora, CO 800451184632432
- Ronald Colson, MDAurora, CO 800451144214099
- Anjali Dhurandhar, M.D.Aurora, CO 800451023035045
- Liselotte Dyrbye, M.D.Aurora, CO 800451275511164
- Eden English, MDAurora, CO 800451811969058
- Mark Levine, M.D.Aurora, CO 800451477556694
- Carmen Lewis, M.D.Aurora, CO 800451841215134
Common questions
What is Robert J. Doolan, M.D.'s NPI number?
Robert J. Doolan, M.D.'s National Provider Identifier (NPI) is 1841202884, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert J. Doolan, M.D. located?
The NPPES record lists a practice address at 1635 Aurora CT, Aurora, CO, 80045. Phone: (303) 333-5456. Providers update this record themselves, so call before visiting.
How can I verify Robert J. Doolan, M.D.'s license?
NPPES lists Colorado license number 40432, 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 Robert J. Doolan, M.D. prescribe under Medicare Part D?
In 2024, Robert J. Doolan, M.D. had 4,358 Medicare Part D claims for 313 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.