Randall Douglas Buzan, M.D.
Psychiatry Physician · Denver, CO
Randall Douglas Buzan, M.D. is a psychiatry physician with a practice address in Denver, Colorado, and NPI 1073789160, issued on May 7, 2008. Check the license (Colorado 29560, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Randall Douglas Buzan
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 29560 CO
Self-reported in NPPES; status is on the state search - Practice location
- 155 S Madison St, Denver, CO 80209
- Phone
- (303) 377-4956
- Enumerated
- May 7, 2008
- Record last updated
- May 7, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (303) 377-4965
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 990 in Colorado → Look up another NPI →
Also registered at 155 S Madison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathleen Anderson, DPTPhysical Therapist1235519646
- Wallace Arthur, M.D.Psychiatry Physician1427170562
- Annette Berg, MA, CCC-A, F-AAAAudiologist1730354275
- Jamie Bianco, AUDAudiologist1861657025
- David Cochrane, M.D.Internal Medicine Physician1053331306
- Amanda FarrellPsychiatric/Mental Health Nurse Practitioner1790233641
Verify Randall Douglas Buzan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 29560Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average psychiatry physician in 2024
565 Medicare Part D claims for 35 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Gabapentin37 claims
- Vilazodone Hcl36 claims
- Alprazolam30 claims
- Methylphenidate Hcl27 claims
- Dextroamphetamine Sulfate24 claims
- Lamictal Xr24 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.
Randall Douglas Buzan among 990 psychiatry physician records in Colorado
Randall Douglas Buzan, M.D. is one of 990 psychiatry physician records with a practice address in Colorado. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 35% of these records are
- Record last updated2008 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
291 psychiatry physician records list a practice address in Denver
They are 291 of the 25,068 NPPES records with a practice address in Denver, and 990 psychiatry physician records in Colorado.
All 990 in Colorado → Every provider in Denver → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Wallace Arthur, M.D.Denver, CO 802091427170562
- Lawrence CormierDenver, CO 802091427146331
- Deborah Coyle, M.D.Denver, CO 802091285856047
- Susan Frederick, M.D.Denver, CO 802091124163449
- Roni Greifner, MDDenver, CO 802091033386164
- Tracy Hawkins, PMHNP, FNPDenver, CO 802091477051720
- Jennifer Lytle, M.D.Denver, CO 802091851441463
- Sara Markey, M.D.Denver, CO 802091477630473
Common questions
What is Randall Douglas Buzan, M.D.'s NPI number?
Randall Douglas Buzan, M.D.'s National Provider Identifier (NPI) is 1073789160, issued on May 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Randall Douglas Buzan, M.D. located?
The NPPES record lists a practice address at 155 S Madison St, Denver, CO, 80209. Phone: (303) 377-4956. Providers update this record themselves, so call before visiting.
How can I verify Randall Douglas Buzan, M.D.'s license?
NPPES lists Colorado license number 29560, 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 Randall Douglas Buzan, M.D. prescribe under Medicare Part D?
In 2024, Randall Douglas Buzan, M.D. had 565 Medicare Part D claims for 35 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.