2026 NPPES data Acute Care Nurse Practitioner NPI 1306214697 ACNP
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KELSIE MENTZ, ACNP

Acute Care Nurse Practitioner in SAINT LOUIS, Missouri. 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
369
Medicare Part D claims · 90 beneficiaries · Acute Care Nurse Practitioner avg: 576
What the federal data reveals: KELSIE MENTZ, ACNP is a Acute Care Nurse Practitioner ([object Object]) practicing in SAINT LOUIS, Missouri with a Medicare Part D prescribing footprint of 369 claims across 90 beneficiaries .

What stands out: KELSIE MENTZ, ACNP filed 369 Medicare Part D claims in 2023 across SAINT LOUIS, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

KELSIE MENTZ, ACNP at a glance

Quality data not reported

NPI registry status

Active

Issued 09/03/2015

NPI 1306214697

Primary specialty

Acute Care Nurse Practitioner

Mid-sized

24,583 US NPIs in this specialty

Medicare Part D claims

369 36% vs specialty avg

2023 prescription claims

Specialty avg: 576

Specialty distribution in Missouri

How Acute Care Nurse Practitioner compares to other specialties among Missouri providers

Missouri providers

Acute Care Nurse Practitioner share within Missouri

1. Acute Care Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Acute Care Nurse Practitioner share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Acute Care Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Acute Care Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Acute Care Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Acute Care 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).

KELSIE MENTZ, ACNP is a Acute Care Nurse Practitioner provider practicing in SAINT LOUIS, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: ACNP. NPI: 1306214697. 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.

KELSIE MENTZ, ACNP appears in the CMS NPPES registry as a Acute Care Nurse Practitioner provider holding ACNP credentials at 4500 FOREST PARK AVE, SAINT LOUIS, MO, 63108, with a listed phone of (314) 362-3577. NPI 1306214697 was issued on 09/03/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MENTZ 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 369 prescription claims written by this provider, covering 90 Medicare beneficiaries and totaling roughly $31K in drug spend. 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.

Acute Care Nurse Practitioner is a mid-sized specialty nationwide, with 24,583 enrolled providers across 53 states and an average of 576 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

4500 FOREST PARK AVE
SAINT LOUIS, MO 63108

Provider Details

NPI 1306214697
Specialty Acute Care Nurse Practitioner
Credentials ACNP
Gender Female
NPI Issued 09/03/2015

Hospital and facility affiliations

Facilities where KELSIE MENTZ, ACNP 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.

AGING WELL HEALTH CARE, LLC
SAINT LOUIS, MO
WASHINGTON UNIVERSITY
SAINT LOUIS, MO

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

369
Total Claims
$31K
Total Drug Cost
90
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
511
Total Day Supply
14,938
Generic Drug Cost
$4K
Antibiotic Claims
24

Patient Demographics

Average Patient Age
59.7 years
Avg HCC Risk Score
5.64
Gender Split
38% female / 62% male
Age Distribution
<65: 45, 65-74: 33, 75-84: 12, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amlodipine Besylate
63
Carvedilol
55
Clonidine Hcl
16
Gabapentin
16
Lisinopril
15
Furosemide
13
Nifedipine Er
Nifedipine
13
Trulicity
Dulaglutide
13
Famotidine
12
Hydralazine Hcl
12

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

Acute Care Nurse Practitioner Overview

How KELSIE MENTZ, ACNP fits within the Acute Care Nurse Practitioner landscape nationally.

24,583
Acute Care Nurse Practitioner Providers in US
53
States with Acute Care Nurse Practitioner
576
Avg Claims per Provider

KELSIE MENTZ, ACNP's 369 claims are below the specialty average of 576.

Nearby Acute Care Nurse Practitioner Providers in Missouri

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

Compare Acute Care Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is KELSIE MENTZ, ACNP's specialty?
KELSIE MENTZ, ACNP specializes in Acute Care Nurse Practitioner and practices in SAINT LOUIS, Missouri. Credentials: ACNP.
How much does KELSIE MENTZ, ACNP prescribe under Medicare Part D?
In 2023, KELSIE MENTZ, ACNP wrote 369 Medicare Part D claims totaling $31K in drug costs for 90 beneficiaries.
Where is KELSIE MENTZ, ACNP located?
KELSIE MENTZ, ACNP is located at 4500 FOREST PARK AVE, SAINT LOUIS, MO, 63108. Phone: (314) 362-3577.
What is KELSIE MENTZ, ACNP's NPI number?
KELSIE MENTZ, ACNP's National Provider Identifier (NPI) is 1306214697, issued on 09/03/2015.
How many Acute Care Nurse Practitioner providers are there in the US?
There are 24,583 Acute Care Nurse Practitioner providers across 53 states in the US. The average Acute Care Nurse Practitioner provider writes 576 Medicare Part D claims per year.
What drugs does KELSIE MENTZ, ACNP prescribe most often?
Based on 2023 Medicare Part D data, KELSIE MENTZ, ACNP's most frequently prescribed drugs include Amlodipine Besylate, Carvedilol, Clonidine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KELSIE MENTZ, ACNP accept Medicare?
KELSIE MENTZ, ACNP appears in CMS Medicare data with 369 Part D claims and 90 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KELSIE MENTZ, ACNP's credentials?
KELSIE MENTZ, ACNP's NPI is 1306214697 with credentials ACNP. 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