2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1619419405 PMHNP-BC
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ERIN FLAVIN, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner in LIBBY, Montana. 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
3K
Medicare Part D claims · 97 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927

What the federal data shows

ERIN FLAVIN, PMHNP-BC filed 2,610 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in LIBBY, Montana.

3K
Part D claims, 2023

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.

ERIN FLAVIN, PMHNP-BC's Medicare Part D volume vs every U.S. prescriber

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

2,610 Top 13% higher than 87% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 ERIN FLAVIN, PMHNP-BC?

Quality data not reported

NPI registry status

Active

Issued 11/09/2016

NPI 1619419405

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

2,610 182% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in Montana

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

Montana providers

Psychiatric/Mental Health Nurse Practitioner share within Montana

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

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).

ERIN FLAVIN, PMHNP-BC appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding PMHNP-BC credentials at 320 E 2ND ST, LIBBY, MT, 59923, with a listed phone of (406) 283-6900. NPI 1619419405 was issued on 11/09/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FLAVIN 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 2,610 prescription claims written by this provider, covering 97 Medicare beneficiaries and totaling roughly $223K 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.

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

320 E 2ND ST
LIBBY, MT 59923

Provider Details

NPI 1619419405
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials PMHNP-BC
Gender Female
NPI Issued 11/09/2016

Hospital and facility affiliations

Facilities where ERIN FLAVIN, PMHNP-BC 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.

LINCOLN COUNTY COMMUNITY HEALTH CENTER INC
LIBBY, MT

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.

2,610
Total Claims
$223K
Total Drug Cost
97
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,959
Total Day Supply
83,520
Generic Drug Cost
$72K

Patient Demographics

Average Patient Age
54.6 years
Avg HCC Risk Score
1.10
Gender Split
69% female / 31% male
Age Distribution
<65: 68, 65-74: 24, 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.

What ERIN FLAVIN, PMHNP-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
Lamotrigine
191
Bupropion Xl
Bupropion Hcl
184
Aripiprazole
149
Trazodone Hcl
119
Hydroxyzine Pamoate
101
Clonazepam
100
Sertraline Hcl
96
Fluoxetine Hcl
89
Buspirone Hcl
87
Lorazepam
79

* 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 ERIN FLAVIN, PMHNP-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

ERIN FLAVIN, PMHNP-BC's 2,610 claims are above the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Montana

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

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

Frequently Asked Questions

What is ERIN FLAVIN, PMHNP-BC's specialty?
ERIN FLAVIN, PMHNP-BC specializes in Psychiatric/Mental Health Nurse Practitioner and practices in LIBBY, Montana. Credentials: PMHNP-BC.
How much does ERIN FLAVIN, PMHNP-BC prescribe under Medicare Part D?
In 2023, ERIN FLAVIN, PMHNP-BC wrote 2,610 Medicare Part D claims totaling $223K in drug costs for 97 beneficiaries.
Where is ERIN FLAVIN, PMHNP-BC located?
ERIN FLAVIN, PMHNP-BC is located at 320 E 2ND ST, LIBBY, MT, 59923. Phone: (406) 283-6900.
What is ERIN FLAVIN, PMHNP-BC's NPI number?
ERIN FLAVIN, PMHNP-BC's National Provider Identifier (NPI) is 1619419405, issued on 11/09/2016.
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 ERIN FLAVIN, PMHNP-BC prescribe most often?
Based on 2023 Medicare Part D data, ERIN FLAVIN, PMHNP-BC's most frequently prescribed drugs include Lamotrigine, Bupropion Xl, Aripiprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIN FLAVIN, PMHNP-BC accept Medicare?
ERIN FLAVIN, PMHNP-BC appears in CMS Medicare data with 2,610 Part D claims and 97 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIN FLAVIN, PMHNP-BC's credentials?
ERIN FLAVIN, PMHNP-BC's NPI is 1619419405 with credentials PMHNP-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