NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1871565499 M.D.
Verify on CMS → Berne Bahnson, M.D.
Psychiatry Physician in Sioux Falls, South Dakota.
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
6K
Medicare Part D claims · 289 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
93%
generic claims · 7% 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
Berne Bahnson, M.D. filed 6,193 Medicare Part D claims in 2024 as a Psychiatry Physician in Sioux Falls, South Dakota, prescribing 93% generic.
- 6K
- Part D claims, 2024
- 93%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥95th
- 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 Berne Bahnson, 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 1871565499), first enumerated 02/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 6,193 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1871565499 · Psychiatry Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1871565499
- ENUM-LEGACY 2006
- TAX-MEGA 54K Psychiatry Physician
- RX-MID 6,193
- BOOK-THIN 102 in South Dakota
- PHOTO-ENUM John Hamm, MD · 2006
Berne Bahnson, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
6,193 ≥ 95th percentile 95% 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 certification likely (heuristic, not verified)
Berne Bahnson, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Berne Bahnson, M.D.?
Quality data not reportedPrimary specialty
Psychiatry Physician
Medicare Part D claims
6,193 6× vs specialty avg
Specialty distribution in South Dakota
How Psychiatry Physician compares to other specialties among South Dakota 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 | 1871565499 |
|---|---|
| Specialty | Psychiatry Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/07/2006 |
Hospital and facility affiliations
Facilities where Berne Bahnson, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Avera Mckennan
Sioux Falls, SD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Berne Bahnson, M.D. - brand share 7.0%
Psychiatry Physician average
7% brand-name claims vs 93% generic, on 6,193 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.
6,193
Total Claims
$662K
Total Drug Cost
289
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,512.667
- Total Day Supply
- 218,415
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $546K
- Generic Drug Cost
- $116K
Patient Demographics
- Average Patient Age
- 64.0 years
- Avg HCC Risk Score
- 1.16
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 108, 65-74: 121, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Berne Bahnson, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Clonazepam
Clonazepam
492 claims
- Quetiapine Fumarate
Quetiapine Fumarate
417 claims
- Trazodone Hcl
Trazodone Hcl
316 claims
- Bupropion Xl
Bupropion Xl
313 claims
- Duloxetine Hcl
Duloxetine Hcl
300 claims
- Fluoxetine Hcl
Fluoxetine Hcl
294 claims
- Alprazolam
Alprazolam
260 claims
- Lorazepam
Lorazepam
247 claims
| Drug | Claims |
|---|---|
| Clonazepam | 492 |
| Quetiapine Fumarate | 417 |
| Trazodone Hcl | 316 |
| Bupropion Xl Bupropion Hcl | 313 |
| Duloxetine Hcl | 300 |
| Fluoxetine Hcl | 294 |
| Alprazolam | 260 |
| Lorazepam | 247 |
| Lamotrigine | 232 |
| Escitalopram Oxalate | 215 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How Berne Bahnson, 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
Berne Bahnson, M.D.'s 6,193 claims are above the specialty average of 1,010.
Nationwide Psychiatry Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bahnson, both outside South Dakota so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Psychiatry Physician Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Bahnson.
One of 102 Psychiatry Physician providers enrolled in South Dakota, 5 are shown here.
Dr. Seth Ahrendt
M.D.
Sioux Falls, SD
Dr. Lisa Amiotte
M.D.
Sioux Falls, SD
Dr. Kent Andre
MD
Sioux Falls, SD
Dr. Natalie Armijo
M.D.
Sioux Falls, SD
Dr. Francis Bandettini
D.O.
Sioux Falls, SD
Compare Psychiatry Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Berne Bahnson, M.D.'s specialty? ▼
Berne Bahnson, M.D. specializes in Psychiatry Physician and practices in Sioux Falls, South Dakota. Credentials: M.D..
How much does Berne Bahnson, M.D. prescribe under Medicare Part D? ▼
In 2024, Berne Bahnson, M.D. wrote 6,193 Medicare Part D claims totaling $662K in drug costs for 289 beneficiaries.
Where is Berne Bahnson, M.D. located? ▼
Berne Bahnson, M.D. is located at 4400 W 69TH ST, Sioux Falls, SD, 57108. Phone: (605) 322-7580.
What is Berne Bahnson, M.D.'s NPI number? ▼
Berne Bahnson, M.D.'s National Provider Identifier (NPI) is 1871565499, issued on 02/07/2006.
Does Berne Bahnson, M.D. prescribe more brand-name or generic drugs? ▼
Berne Bahnson, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $546K 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 Berne Bahnson, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Berne Bahnson, M.D.'s most frequently prescribed drugs include Clonazepam, Quetiapine Fumarate, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Berne Bahnson, M.D. accept Medicare? ▼
Berne Bahnson, M.D. appears in CMS Medicare data with 6,193 Part D claims and 289 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Berne Bahnson, M.D.'s credentials? ▼
Berne Bahnson, M.D.'s NPI is 1871565499 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.