2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1144325648 DNP, ARNP
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NAN AMBROSY, DNP, ARNP

Psychiatric/Mental Health Nurse Practitioner in DES MOINES, 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
4K
Medicare Part D claims · 256 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$930.05
55 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: NAN AMBROSY, DNP, ARNP is a Psychiatric/Mental Health Nurse Practitioner ([object Object]) practicing in DES MOINES, Iowa with a Medicare Part D prescribing footprint of 4K claims across 256 beneficiaries — 6% brand-name prescribing . Industry payments of $930.05 across 55 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: NAN AMBROSY, DNP, ARNP filed 4,076 Medicare Part D claims in 2023 across DES MOINES, Iowa. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

NAN AMBROSY, DNP, ARNP at a glance

Quality data not reported

NPI registry status

Active

Issued 09/13/2006

NPI 1144325648

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

4,076 340% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in Iowa

How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Iowa providers

Iowa providers

Psychiatric/Mental Health Nurse Practitioner share within Iowa

1. Psychiatric/Mental Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Nurse Practitioner share within Iowa

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatric/Mental Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatric/Mental Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — 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).

NAN AMBROSY, DNP, ARNP is a Psychiatric/Mental Health Nurse Practitioner provider practicing in DES MOINES, Iowa, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DNP, ARNP. NPI: 1144325648. 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.

NAN AMBROSY, DNP, ARNP appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding DNP, ARNP credentials at 6500 UNIVERSITY AVE STE 200, DES MOINES, IA, 50324, with a listed phone of (833) 351-8255. NPI 1144325648 was issued on 09/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AMBROSY 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 4,076 prescription claims written by this provider, covering 256 Medicare beneficiaries and totaling roughly $556K in drug spend, split 6% brand-name and 94% 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.

Psychiatric/Mental Health Nurse Practitioner is a mid-sized specialty nationwide, with 39,953 enrolled providers across 54 states and an average of 927 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

6500 UNIVERSITY AVE STE 200
DES MOINES, IA 50324

Provider Details

NPI 1144325648
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials DNP, ARNP
Gender Female
NPI Issued 09/13/2006

Hospital and facility affiliations

Facilities where NAN AMBROSY, DNP, ARNP 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.

COVENANT MEDICAL CENTER INC
WATERLOO, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for NAN AMBROSY, DNP, ARNP. Source: openpaymentsdata.cms.gov.

Total received

$930

Largest payer

Alkermes, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

NAN AMBROSY, DNP, ARNP — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 4,076 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.

4,076
Total Claims
$556K
Total Drug Cost
256
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,574
Total Day Supply
192,173
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$420K
Generic Drug Cost
$136K

Patient Demographics

Average Patient Age
62.4 years
Avg HCC Risk Score
1.39
Gender Split
65% female / 35% male
Age Distribution
<65: 118, 65-74: 85, 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
Trazodone Hcl
310
Escitalopram Oxalate
283
Bupropion Xl
Bupropion Hcl
222
Duloxetine Hcl
205
Quetiapine Fumarate
203
Buspirone Hcl
196
Lamotrigine
192
Venlafaxine Hcl Er
Venlafaxine Hcl
190
Aripiprazole
182
Lorazepam
169

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

Psychiatric/Mental Health Nurse Practitioner Overview

How NAN AMBROSY, DNP, ARNP fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.

39,953
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
927
Avg Claims per Provider

NAN AMBROSY, DNP, ARNP's 4,076 claims are above the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Iowa

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

Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is NAN AMBROSY, DNP, ARNP's specialty?
NAN AMBROSY, DNP, ARNP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in DES MOINES, Iowa. Credentials: DNP, ARNP.
How much does NAN AMBROSY, DNP, ARNP prescribe under Medicare Part D?
In 2023, NAN AMBROSY, DNP, ARNP wrote 4,076 Medicare Part D claims totaling $556K in drug costs for 256 beneficiaries.
Where is NAN AMBROSY, DNP, ARNP located?
NAN AMBROSY, DNP, ARNP is located at 6500 UNIVERSITY AVE STE 200, DES MOINES, IA, 50324. Phone: (833) 351-8255.
What is NAN AMBROSY, DNP, ARNP's NPI number?
NAN AMBROSY, DNP, ARNP's National Provider Identifier (NPI) is 1144325648, issued on 09/13/2006.
Does NAN AMBROSY, DNP, ARNP prescribe more brand-name or generic drugs?
NAN AMBROSY, DNP, ARNP's prescribing is 6% brand-name and 94% generic drugs by claim count, with $420K in brand drug costs.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US?
There are 39,953 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 927 Medicare Part D claims per year.
What drugs does NAN AMBROSY, DNP, ARNP prescribe most often?
Based on 2023 Medicare Part D data, NAN AMBROSY, DNP, ARNP's most frequently prescribed drugs include Trazodone Hcl, Escitalopram Oxalate, Bupropion Xl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NAN AMBROSY, DNP, ARNP accept Medicare?
NAN AMBROSY, DNP, ARNP appears in CMS Medicare data with 4,076 Part D claims and 256 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NAN AMBROSY, DNP, ARNP's credentials?
NAN AMBROSY, DNP, ARNP's NPI is 1144325648 with credentials DNP, ARNP. 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