2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1376296269 RN, PMNHP-BC
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ALEXANDER FOX, RN, PMNHP-BC

Psychiatric/Mental Health 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
776
Medicare Part D claims · 14 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ALEXANDER FOX, RN, PMNHP-BC filed 776 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in SAINT LOUIS, Missouri, prescribing 95% generic.

776
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.

ALEXANDER FOX, RN, PMNHP-BC's Medicare Part D volume vs every U.S. prescriber

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

776 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 ALEXANDER FOX, RN, PMNHP-BC?

Quality data not reported

NPI registry status

Active

Issued 01/31/2022

NPI 1376296269

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

776 16% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in Missouri

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

Missouri providers

Psychiatric/Mental Health Nurse Practitioner share within Missouri

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

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).

ALEXANDER FOX, RN, PMNHP-BC appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding RN, PMNHP-BC credentials at 5300 ARSENAL ST, SAINT LOUIS, MO, 63139, with a listed phone of (314) 877-6501. NPI 1376296269 was issued on 01/31/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FOX 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 776 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $39K 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.

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

5300 ARSENAL ST
SAINT LOUIS, MO 63139

Provider Details

NPI 1376296269
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials RN, PMNHP-BC
Gender Male
NPI Issued 01/31/2022

Brand vs generic prescribing mix · Generic-heavy

ALEXANDER FOX, RN, PMNHP-BC — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 776 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.

776
Total Claims
$39K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
804
Total Day Supply
20,369
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$13K
Generic Drug Cost
$26K

Patient Demographics

Average Patient Age
45.7 years
Avg HCC Risk Score
0.71

Top Prescribed Drugs (Medicare Part D)

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

What ALEXANDER FOX, RN, PMNHP-BC 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
Clozapine
83
Divalproex Sodium
74
Benztropine Mesylate
45
Haloperidol
45
Olanzapine Odt
Olanzapine
43
Olanzapine
36
Hydroxyzine Pamoate
34
Mirtazapine
34
Prazosin Hcl
34
Aripiprazole
32

* 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 ALEXANDER FOX, RN, PMNHP-BC 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

ALEXANDER FOX, RN, PMNHP-BC's 776 claims are below the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Missouri

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

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

Frequently Asked Questions

What is ALEXANDER FOX, RN, PMNHP-BC's specialty?
ALEXANDER FOX, RN, PMNHP-BC specializes in Psychiatric/Mental Health Nurse Practitioner and practices in SAINT LOUIS, Missouri. Credentials: RN, PMNHP-BC.
How much does ALEXANDER FOX, RN, PMNHP-BC prescribe under Medicare Part D?
In 2023, ALEXANDER FOX, RN, PMNHP-BC wrote 776 Medicare Part D claims totaling $39K in drug costs for 14 beneficiaries.
Where is ALEXANDER FOX, RN, PMNHP-BC located?
ALEXANDER FOX, RN, PMNHP-BC is located at 5300 ARSENAL ST, SAINT LOUIS, MO, 63139. Phone: (314) 877-6501.
What is ALEXANDER FOX, RN, PMNHP-BC's NPI number?
ALEXANDER FOX, RN, PMNHP-BC's National Provider Identifier (NPI) is 1376296269, issued on 01/31/2022.
Does ALEXANDER FOX, RN, PMNHP-BC prescribe more brand-name or generic drugs?
ALEXANDER FOX, RN, PMNHP-BC's prescribing is 5% brand-name and 95% generic drugs by claim count, with $13K 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 ALEXANDER FOX, RN, PMNHP-BC prescribe most often?
Based on 2023 Medicare Part D data, ALEXANDER FOX, RN, PMNHP-BC's most frequently prescribed drugs include Clozapine, Divalproex Sodium, Benztropine Mesylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALEXANDER FOX, RN, PMNHP-BC accept Medicare?
ALEXANDER FOX, RN, PMNHP-BC appears in CMS Medicare data with 776 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALEXANDER FOX, RN, PMNHP-BC's credentials?
ALEXANDER FOX, RN, PMNHP-BC's NPI is 1376296269 with credentials RN, PMNHP-BC. 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