NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1073789160 M.D.
Verify on CMS → Randall Buzan, M.D.
Psychiatry Physician in Denver, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 54,383 in Psychiatry Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
565
Medicare Part D claims · 35 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Randall Buzan, M.D. filed 565 Medicare Part D claims in 2024 as a Psychiatry Physician in Denver, Colorado, prescribing 90% generic.
- 565
- Part D claims, 2024
- 90%
- generic prescribing
- ≥65th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Randall Buzan, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1073789160), first enumerated 05/07/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 565 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1073789160 · Psychiatry Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1073789160
- ENUM-MID 2008
- TAX-MEGA 54K Psychiatry Physician
- RX-LIGHT 565
- BOOK-LIGHT 954 in Colorado
- PHOTO-ENUM Jessica Beachkofsky,… · 2008
Randall Buzan, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
565 ≥ 65th percentile 65% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Randall Buzan, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Randall Buzan, M.D.?
Quality data not reportedPrimary specialty
Psychiatry Physician
Medicare Part D claims
565 44% vs specialty avg
Specialty distribution in Colorado
How Psychiatry Physician compares to other specialties among Colorado providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Psychiatry Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1073789160 |
|---|---|
| Specialty | Psychiatry Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/07/2008 |
Brand vs generic prescribing mix · Typical
Randall Buzan, M.D. - brand share 10.0%
Psychiatry Physician average
10% brand-name claims vs 90% generic, on 565 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
565
Total Claims
$63K
Total Drug Cost
35
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 748.8
- Total Day Supply
- 22,131
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $46K
- Generic Drug Cost
- $17K
Patient Demographics
- Average Patient Age
- 63.8 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 37% female / 63% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Randall Buzan, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Gabapentin
Gabapentin
37 claims
- Vilazodone Hcl
Vilazodone Hcl
36 claims
- Alprazolam
Alprazolam
30 claims
- Methylphenidate Hcl
Methylphenidate Hcl
27 claims
- Dextroamphetamine …
Dextroamphetamine Sulfate
24 claims
- Lamictal Xr
Lamictal Xr
24 claims
- Trazodone Hcl
Trazodone Hcl
23 claims
- Sertraline Hcl
Sertraline Hcl
21 claims
| Drug | Claims |
|---|---|
| Gabapentin | 37 |
| Vilazodone Hcl | 36 |
| Alprazolam | 30 |
| Methylphenidate Hcl | 27 |
| Dextroamphetamine Sulfate | 24 |
| Lamictal Xr Lamotrigine | 24 |
| Trazodone Hcl | 23 |
| Sertraline Hcl | 21 |
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 20 |
| Lorazepam | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How Randall Buzan, M.D. fits within the Psychiatry Physician landscape nationally.
54,383
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,010
Avg Claims per Provider
Randall Buzan, M.D.'s 565 claims are below the specialty average of 1,010.
Nationwide Psychiatry Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Buzan, both outside Colorado so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Psychiatry Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Buzan.
One of 954 Psychiatry Physician providers enrolled in Colorado, 5 are shown here.
Dr. Ari Aal
DO
Boulder, CO
Ellen Aal
PMHNP
Boulder, CO
Dr. Alec Aaronson
DO
Aurora, CO
Dr. Galia Abadi
M.D.
Parker, CO
Dr. Daniel Abrams
MD
Aurora, CO
Compare Psychiatry Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Randall Buzan, M.D.'s specialty? ▼
Randall Buzan, M.D. specializes in Psychiatry Physician and practices in Denver, Colorado. Credentials: M.D..
How much does Randall Buzan, M.D. prescribe under Medicare Part D? ▼
In 2024, Randall Buzan, M.D. wrote 565 Medicare Part D claims totaling $63K in drug costs for 35 beneficiaries.
Where is Randall Buzan, M.D. located? ▼
Randall Buzan, M.D. is located at 155 S MADISON ST, Denver, CO, 80209. Phone: (303) 377-4956.
What is Randall Buzan, M.D.'s NPI number? ▼
Randall Buzan, M.D.'s National Provider Identifier (NPI) is 1073789160, issued on 05/07/2008.
Does Randall Buzan, M.D. prescribe more brand-name or generic drugs? ▼
Randall Buzan, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $46K in brand drug costs.
How many Psychiatry Physician providers are there in the US? ▼
There are 54,383 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,010 Medicare Part D claims per year.
What drugs does Randall Buzan, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Randall Buzan, M.D.'s most frequently prescribed drugs include Gabapentin, Vilazodone Hcl, Alprazolam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Randall Buzan, M.D. accept Medicare? ▼
Randall Buzan, M.D. appears in CMS Medicare data with 565 Part D claims and 35 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Randall Buzan, M.D.'s credentials? ▼
Randall Buzan, M.D.'s NPI is 1073789160 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.