2026 NPPES data Addiction (Substance Use Disorder) Counselor NPI 1942745377 ARNP, CADC
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ANDREA STORJOHANN, ARNP, CADC

Addiction (Substance Use Disorder) Counselor in MARSHALLTOWN, Iowa. 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
788
Medicare Part D claims · 56 beneficiaries · Addiction (Substance Use Disorder) Counselor avg: 645
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ANDREA STORJOHANN, ARNP, CADC filed 788 Medicare Part D claims in 2023 as a Addiction (Substance Use Disorder) Counselor in MARSHALLTOWN, Iowa, prescribing 95% generic.

788
Part D claims, 2023
95%
generic prescribing

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.

ANDREA STORJOHANN, ARNP, CADC's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

788 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about ANDREA STORJOHANN, ARNP, CADC?

Quality data not reported

NPI registry status

Active

Issued 12/20/2016

NPI 1942745377

Primary specialty

Addiction (Substance Use Disorder) Counselor

High-volume

109,141 US NPIs in this specialty

Medicare Part D claims

788 22% vs specialty avg

2023 prescription claims

Specialty avg: 645

Specialty distribution in Iowa

How Addiction (Substance Use Disorder) Counselor compares to other specialties among Iowa providers

Iowa providers

Addiction (Substance Use Disorder) Counselor share within Iowa

1. Addiction (Substance Use Disorder) Counselor42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction (Substance Use Disorder) Counselor share within Iowa

Specialty board-certification context

Estimated specialty board-certified rate — Addiction (Substance Use Disorder) Counselor (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction (Substance Use Disorder) Counselor ABMS/AOA estimate

Est. board-certified rate (Addiction (Substance Use Disorder) Counselor) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction (Substance Use Disorder) Counselor) — 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).

ANDREA STORJOHANN, ARNP, CADC appears in the CMS NPPES registry as a Addiction (Substance Use Disorder) Counselor provider holding ARNP, CADC credentials at 412 E CHURCH ST, MARSHALLTOWN, IA, 50158, with a listed phone of (641) 753-4021. NPI 1942745377 was issued on 12/20/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STORJOHANN 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 788 prescription claims written by this provider, covering 56 Medicare beneficiaries and totaling roughly $72K 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.

Addiction (Substance Use Disorder) Counselor is a high-volume specialty nationwide, with 109,141 enrolled providers across 55 states and an average of 645 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

412 E CHURCH ST
MARSHALLTOWN, IA 50158

Provider Details

NPI 1942745377
Specialty Addiction (Substance Use Disorder) Counselor
Credentials ARNP, CADC
Gender Female
NPI Issued 12/20/2016

Hospital and facility affiliations

Facilities where ANDREA STORJOHANN, ARNP, CADC 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.

PRAIRIE RIDGE INTEGRATED BEHAVIORAL HEALTHCARE
MASON CITY, IA

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

ANDREA STORJOHANN, ARNP, CADC — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 788 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.

788
Total Claims
$72K
Total Drug Cost
56
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
905
Total Day Supply
25,864
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$47K
Generic Drug Cost
$25K

Patient Demographics

Average Patient Age
51.2 years
Avg HCC Risk Score
1.24
Gender Split
46% female / 54% male
Age Distribution
<65: 43, 65-74: 13, 75-84: 0, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

What ANDREA STORJOHANN, ARNP, CADC prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
72
Quetiapine Fumarate
65
Trazodone Hcl
50
Hydroxyzine Hcl
41
Lamotrigine
37
Risperidone
37
Sertraline Hcl
37
Bupropion Xl
Bupropion Hcl
32
Hydroxyzine Pamoate
25
Paroxetine Hcl
25

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

Addiction (Substance Use Disorder) Counselor Overview

How ANDREA STORJOHANN, ARNP, CADC fits within the Addiction (Substance Use Disorder) Counselor landscape nationally.

109,141
Addiction (Substance Use Disorder) Counselor Providers in US
55
States with Addiction (Substance Use Disorder) Counselor
645
Avg Claims per Provider

ANDREA STORJOHANN, ARNP, CADC's 788 claims are above the specialty average of 645.

Nearby Addiction (Substance Use Disorder) Counselor Providers in Iowa

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

Compare Addiction (Substance Use Disorder) Counselor nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANDREA STORJOHANN, ARNP, CADC's specialty?
ANDREA STORJOHANN, ARNP, CADC specializes in Addiction (Substance Use Disorder) Counselor and practices in MARSHALLTOWN, Iowa. Credentials: ARNP, CADC.
How much does ANDREA STORJOHANN, ARNP, CADC prescribe under Medicare Part D?
In 2023, ANDREA STORJOHANN, ARNP, CADC wrote 788 Medicare Part D claims totaling $72K in drug costs for 56 beneficiaries.
Where is ANDREA STORJOHANN, ARNP, CADC located?
ANDREA STORJOHANN, ARNP, CADC is located at 412 E CHURCH ST, MARSHALLTOWN, IA, 50158. Phone: (641) 753-4021.
What is ANDREA STORJOHANN, ARNP, CADC's NPI number?
ANDREA STORJOHANN, ARNP, CADC's National Provider Identifier (NPI) is 1942745377, issued on 12/20/2016.
Does ANDREA STORJOHANN, ARNP, CADC prescribe more brand-name or generic drugs?
ANDREA STORJOHANN, ARNP, CADC's prescribing is 5% brand-name and 95% generic drugs by claim count, with $47K in brand drug costs.
How many Addiction (Substance Use Disorder) Counselor providers are there in the US?
There are 109,141 Addiction (Substance Use Disorder) Counselor providers across 55 states in the US. The average Addiction (Substance Use Disorder) Counselor provider writes 645 Medicare Part D claims per year.
What drugs does ANDREA STORJOHANN, ARNP, CADC prescribe most often?
Based on 2023 Medicare Part D data, ANDREA STORJOHANN, ARNP, CADC's most frequently prescribed drugs include Buprenorphine-Naloxone, Quetiapine Fumarate, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANDREA STORJOHANN, ARNP, CADC accept Medicare?
ANDREA STORJOHANN, ARNP, CADC appears in CMS Medicare data with 788 Part D claims and 56 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANDREA STORJOHANN, ARNP, CADC's credentials?
ANDREA STORJOHANN, ARNP, CADC's NPI is 1942745377 with credentials ARNP, CADC. 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