2026 NPPES data Psychiatric/Mental Health Registered Nurse NPI 1528671187 PMHNP
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JOANNA WILLIAMS, PMHNP

Psychiatric/Mental Health Registered Nurse in LONGMONT, Colorado. 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
983
Medicare Part D claims · 45 beneficiaries · Psychiatric/Mental Health Registered Nurse avg: 893
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JOANNA WILLIAMS, PMHNP filed 983 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Registered Nurse in LONGMONT, Colorado, prescribing 93% generic.

983
Part D claims, 2023
93%
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.

JOANNA WILLIAMS, PMHNP's Medicare Part D volume vs every U.S. prescriber

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

983 Top 25% higher than 75% 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%). This entry sits in this band. 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 JOANNA WILLIAMS, PMHNP?

Quality data not reported

NPI registry status

Active

Issued 08/24/2020

NPI 1528671187

Primary specialty

Psychiatric/Mental Health Registered Nurse

Mid-sized

11,711 US NPIs in this specialty

Medicare Part D claims

983 10% vs specialty avg

2023 prescription claims

Specialty avg: 893

Specialty distribution in Colorado

How Psychiatric/Mental Health Registered Nurse compares to other specialties among Colorado providers

Colorado providers

Psychiatric/Mental Health Registered Nurse share within Colorado

1. Psychiatric/Mental Health Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Registered Nurse share within Colorado

Specialty board-certification context

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

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

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

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

JOANNA WILLIAMS, PMHNP appears in the CMS NPPES registry as a Psychiatric/Mental Health Registered Nurse provider holding PMHNP credentials at 529 COFFMAN ST, LONGMONT, CO, 80501, with a listed phone of (303) 443-8500. NPI 1528671187 was issued on 08/24/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS 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 983 prescription claims written by this provider, covering 45 Medicare beneficiaries and totaling roughly $294K in drug spend, split 7% brand-name and 93% 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 Registered Nurse is a mid-sized specialty nationwide, with 11,711 enrolled providers across 54 states and an average of 893 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

529 COFFMAN ST
LONGMONT, CO 80501

Provider Details

NPI 1528671187
Specialty Psychiatric/Mental Health Registered Nurse
Credentials PMHNP
Gender Female
NPI Issued 08/24/2020

Hospital and facility affiliations

Facilities where JOANNA WILLIAMS, PMHNP 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.

CLINICA CAMPESINA FAMILY HEALTH SERVICES
LAFAYETTE, CO

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

JOANNA WILLIAMS, PMHNP — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 983 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.

983
Total Claims
$294K
Total Drug Cost
45
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,182
Total Day Supply
34,439
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$256K
Generic Drug Cost
$39K

Patient Demographics

Average Patient Age
56.5 years
Avg HCC Risk Score
1.17
Gender Split
73% female / 27% male
Age Distribution
<65: 30, 65-74: 13, 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 JOANNA WILLIAMS, PMHNP 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
Trazodone Hcl
67
Duloxetine Hcl
64
Lamotrigine
51
Clonazepam
50
Quetiapine Fumarate
48
Gabapentin
38
Buspirone Hcl
37
Topiramate
36
Bupropion Xl
Bupropion Hcl
35
Benztropine Mesylate
29

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

Psychiatric/Mental Health Registered Nurse Overview

How JOANNA WILLIAMS, PMHNP fits within the Psychiatric/Mental Health Registered Nurse landscape nationally.

11,711
Psychiatric/Mental Health Registered Nurse Providers in US
54
States with Psychiatric/Mental Health Registered Nurse
893
Avg Claims per Provider

JOANNA WILLIAMS, PMHNP's 983 claims are above the specialty average of 893.

Nearby Psychiatric/Mental Health Registered Nurse Providers in Colorado

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

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

Frequently Asked Questions

What is JOANNA WILLIAMS, PMHNP's specialty?
JOANNA WILLIAMS, PMHNP specializes in Psychiatric/Mental Health Registered Nurse and practices in LONGMONT, Colorado. Credentials: PMHNP.
How much does JOANNA WILLIAMS, PMHNP prescribe under Medicare Part D?
In 2023, JOANNA WILLIAMS, PMHNP wrote 983 Medicare Part D claims totaling $294K in drug costs for 45 beneficiaries.
Where is JOANNA WILLIAMS, PMHNP located?
JOANNA WILLIAMS, PMHNP is located at 529 COFFMAN ST, LONGMONT, CO, 80501. Phone: (303) 443-8500.
What is JOANNA WILLIAMS, PMHNP's NPI number?
JOANNA WILLIAMS, PMHNP's National Provider Identifier (NPI) is 1528671187, issued on 08/24/2020.
Does JOANNA WILLIAMS, PMHNP prescribe more brand-name or generic drugs?
JOANNA WILLIAMS, PMHNP's prescribing is 7% brand-name and 93% generic drugs by claim count, with $256K in brand drug costs.
How many Psychiatric/Mental Health Registered Nurse providers are there in the US?
There are 11,711 Psychiatric/Mental Health Registered Nurse providers across 54 states in the US. The average Psychiatric/Mental Health Registered Nurse provider writes 893 Medicare Part D claims per year.
What drugs does JOANNA WILLIAMS, PMHNP prescribe most often?
Based on 2023 Medicare Part D data, JOANNA WILLIAMS, PMHNP's most frequently prescribed drugs include Trazodone Hcl, Duloxetine Hcl, Lamotrigine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOANNA WILLIAMS, PMHNP accept Medicare?
JOANNA WILLIAMS, PMHNP appears in CMS Medicare data with 983 Part D claims and 45 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOANNA WILLIAMS, PMHNP's credentials?
JOANNA WILLIAMS, PMHNP's NPI is 1528671187 with credentials PMHNP. 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