2026 NPPES data Psychiatry Physician NPI 1871565499 M.D.
Verify on CMS →

BERNE BAHNSON, M.D.

Psychiatry Physician in SIOUX FALLS, South Dakota. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
6K
Medicare Part D claims · 282 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: BERNE BAHNSON, M.D. is a Psychiatry Physician ([object Object]) practicing in SIOUX FALLS, South Dakota with a Medicare Part D prescribing footprint of 6K claims across 282 beneficiaries — 8% brand-name prescribing .

What stands out: BERNE BAHNSON, M.D. filed 6,324 Medicare Part D claims in 2023 across SIOUX FALLS, South Dakota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

BERNE BAHNSON, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 02/07/2006

NPI 1871565499

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

6,324 509% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in South Dakota

How Psychiatry Physician compares to other specialties among South Dakota providers

South Dakota providers

Psychiatry Physician share within South Dakota

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within South Dakota

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

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).

BERNE BAHNSON, M.D. is a Psychiatry Physician provider practicing in SIOUX FALLS, South Dakota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1871565499. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

BERNE BAHNSON, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 4400 W 69TH ST, SIOUX FALLS, SD, 57108, with a listed phone of (605) 322-7580. NPI 1871565499 was issued on 02/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAHNSON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 6,324 prescription claims written by this provider, covering 282 Medicare beneficiaries and totaling roughly $809K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 0.2%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

4400 W 69TH ST
SIOUX FALLS, SD 57108

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 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 6,324 2023 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 2023.

6,324
Total Claims
$809K
Total Drug Cost
282
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,715
Total Day Supply
223,281
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$663K
Generic Drug Cost
$145K
Opioid Claims
12 (0.2% rate)

Patient Demographics

Average Patient Age
63.8 years
Avg HCC Risk Score
1.16
Gender Split
64% female / 36% male
Age Distribution
<65: 107, 65-74: 115, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Clonazepam
462
Duloxetine Hcl
350
Quetiapine Fumarate
334
Trazodone Hcl
323
Bupropion Xl
Bupropion Hcl
258
Alprazolam
252
Fluoxetine Hcl
252
Lorazepam
247
Escitalopram Oxalate
228
Risperidone
227

* 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.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

BERNE BAHNSON, M.D.'s 6,324 claims are above the specialty average of 1,038.

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.

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 2023, BERNE BAHNSON, M.D. wrote 6,324 Medicare Part D claims totaling $809K in drug costs for 282 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 8% brand-name and 92% generic drugs by claim count, with $663K in brand drug costs.
Does BERNE BAHNSON, M.D. prescribe opioids?
Yes, BERNE BAHNSON, M.D. had 12 opioid claims in 2023 with an opioid prescribing rate of 0.2%.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does BERNE BAHNSON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BERNE BAHNSON, M.D.'s most frequently prescribed drugs include Clonazepam, Duloxetine Hcl, Quetiapine Fumarate. 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 6,324 Part D claims and 282 Medicare beneficiaries in 2023. 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

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 (2023). 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 April 2026 (NPPES) / 2023 (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