2026 NPPES data Psychiatry Physician NPI 1992755433 M.D.
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NANCY HORNSTEIN, M.D.

Psychiatry Physician in HOT SPRINGS, Arkansas. 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
244
Medicare Part D claims · 17 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: NANCY HORNSTEIN, M.D. is a Psychiatry Physician ([object Object]) practicing in HOT SPRINGS, Arkansas with a Medicare Part D prescribing footprint of 244 claims across 17 beneficiaries — 5% brand-name prescribing .

What stands out: NANCY HORNSTEIN, M.D. filed 244 Medicare Part D claims in 2023 across HOT SPRINGS, Arkansas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

NANCY HORNSTEIN, 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).

NANCY HORNSTEIN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/12/2006

NPI 1992755433

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

244 76% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Arkansas

How Psychiatry Physician compares to other specialties among Arkansas providers

Arkansas providers

Psychiatry Physician share within Arkansas

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

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).

NANCY HORNSTEIN, M.D. is a Psychiatry Physician provider practicing in HOT SPRINGS, Arkansas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1992755433. 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.

NANCY HORNSTEIN, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 125 DONS WAY, HOT SPRINGS, AR, 71913, with a listed phone of (501) 624-7111. NPI 1992755433 was issued on 05/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HORNSTEIN 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 244 prescription claims written by this provider, covering 17 Medicare beneficiaries and totaling roughly $15K in drug spend, split 5% brand-name and 95% generic by claim count. 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

125 DONS WAY
HOT SPRINGS, AR 71913

Provider Details

NPI 1992755433
Specialty Psychiatry Physician
Credentials M.D.
Gender Female
NPI Issued 05/12/2006

Brand vs generic prescribing mix · Generic-heavy

NANCY HORNSTEIN, M.D. — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 244 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.

244
Total Claims
$15K
Total Drug Cost
17
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
281
Total Day Supply
8,355
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$8K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
63.4 years
Avg HCC Risk Score
0.88

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
24
Dextroamphetamine-Amphetamine
Dextroamphetamine/Amphetamine
21
Duloxetine Hcl
21
Quetiapine Fumarate
20
Bupropion Xl
Bupropion Hcl
18
Sertraline Hcl
17
Mirtazapine
14
Zolpidem Tartrate
12
Bupropion Hcl Sr
Bupropion Hcl
11
Dextroamphetamine-Amphet Er
Dextroamphetamine/Amphetamine
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Psychiatry Physician Overview

How NANCY HORNSTEIN, 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

NANCY HORNSTEIN, M.D.'s 244 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Arkansas

Other clinicians with the same primary specialty enrolled in Arkansas, drawn from the same CMS NPPES roster as HORNSTEIN.

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NANCY HORNSTEIN, M.D.'s specialty?
NANCY HORNSTEIN, M.D. specializes in Psychiatry Physician and practices in HOT SPRINGS, Arkansas. Credentials: M.D..
How much does NANCY HORNSTEIN, M.D. prescribe under Medicare Part D?
In 2023, NANCY HORNSTEIN, M.D. wrote 244 Medicare Part D claims totaling $15K in drug costs for 17 beneficiaries.
Where is NANCY HORNSTEIN, M.D. located?
NANCY HORNSTEIN, M.D. is located at 125 DONS WAY, HOT SPRINGS, AR, 71913. Phone: (501) 624-7111.
What is NANCY HORNSTEIN, M.D.'s NPI number?
NANCY HORNSTEIN, M.D.'s National Provider Identifier (NPI) is 1992755433, issued on 05/12/2006.
Does NANCY HORNSTEIN, M.D. prescribe more brand-name or generic drugs?
NANCY HORNSTEIN, M.D.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $8K in brand drug costs.
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 NANCY HORNSTEIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NANCY HORNSTEIN, M.D.'s most frequently prescribed drugs include Clonazepam, Dextroamphetamine-Amphetamine, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NANCY HORNSTEIN, M.D. accept Medicare?
NANCY HORNSTEIN, M.D. appears in CMS Medicare data with 244 Part D claims and 17 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NANCY HORNSTEIN, M.D.'s credentials?
NANCY HORNSTEIN, M.D.'s NPI is 1992755433 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