2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1144781196 PMHNP
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Gaelle Nyasa, PMHNP

Psychiatric/Mental Health Nurse Practitioner in Washington, District of Columbia. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 39,953 in Psychiatric/Mental Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
729
Medicare Part D claims · 61 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Gaelle Nyasa, PMHNP filed 729 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in Washington, District of Columbia, prescribing 91% generic.

729
Part D claims, 2023
91%
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.

Gaelle Nyasa, PMHNP's Medicare Part D volume vs every U.S. prescriber

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

729 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 Gaelle Nyasa, PMHNP?

Quality data not reported

NPI registry status

Active

Issued 03/30/2019

NPI 1144781196

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

729 21% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in District of Columbia

How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among District of Columbia providers

District of Columbia providers

Largest specialties in District of Columbia (% of in-state providers)

Home Health Aide - 20.8%Home Health Aide20.8%Personal Care Attendant - 11.5%Personal Care Attendant11.5%Case Manager/Care Coordinator - 7%Case Manager/Care Coordinator7%Student in an Organized Health Care Education/Training Program - 6.4%Student in an Organized Health Care Education/Training Program6.4%Clinical Social Worker - 4%Clinical Social Worker4%Internal Medicine Physician - 2.1%Internal Medicine Physician2.1%Psychiatric/Mental Health Nurse Practitioner - 0.3%Psychiatric/Mental Health Nurse Practitioner0.3%
Largest specialties in District of Columbia (% of in-state providers)

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).

Gaelle Nyasa, PMHNP appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding PMHNP credentials at 4228 WISCONSIN AVE NW, Washington, DC, 20016, with a listed phone of (202) 885-5600. NPI 1144781196 was issued on 03/30/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Nyasa 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 729 prescription claims written by this provider, covering 61 Medicare beneficiaries and totaling roughly $190K in drug spend, split 9% brand-name and 91% 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

4228 WISCONSIN AVE NW
Washington, DC 20016

Provider Details

NPI 1144781196
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials PMHNP
Gender Female
NPI Issued 03/30/2019

Brand vs generic prescribing mix · Generic-heavy

Gaelle Nyasa, PMHNP - brand share 9.0%
Psychiatric/Mental Health Nurse Practitioner average

9% brand-name claims vs 91% generic, on 729 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.

729
Total Claims
$190K
Total Drug Cost
61
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
763
Total Day Supply
21,041
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$165K
Generic Drug Cost
$25K

Patient Demographics

Average Patient Age
57.2 years
Avg HCC Risk Score
1.44
Gender Split
49% female / 51% male
Age Distribution
<65: 38, 65-74: 18, 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 Gaelle Nyasa, 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
Clozapine
81
Olanzapine
45
Risperidone
44
Trazodone Hcl
31
Benztropine Mesylate
28
Citalopram Hbr
Citalopram Hydrobromide
26
Gabapentin
24
Clonazepam
23
Invega Sustenna
Paliperidone Palmitate
21
Lithium Carbonate Er
Lithium Carbonate
21

* 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 Gaelle Nyasa, PMHNP 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

Gaelle Nyasa, PMHNP's 729 claims are below the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in District of Columbia

Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Nyasa.

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the District of Columbia medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Psychiatric/Mental Health Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Gaelle Nyasa, PMHNP's specialty?
Gaelle Nyasa, PMHNP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in Washington, District of Columbia. Credentials: PMHNP.
How much does Gaelle Nyasa, PMHNP prescribe under Medicare Part D?
In 2023, Gaelle Nyasa, PMHNP wrote 729 Medicare Part D claims totaling $190K in drug costs for 61 beneficiaries.
Where is Gaelle Nyasa, PMHNP located?
Gaelle Nyasa, PMHNP is located at 4228 WISCONSIN AVE NW, Washington, DC, 20016. Phone: (202) 885-5600.
What is Gaelle Nyasa, PMHNP's NPI number?
Gaelle Nyasa, PMHNP's National Provider Identifier (NPI) is 1144781196, issued on 03/30/2019.
Does Gaelle Nyasa, PMHNP prescribe more brand-name or generic drugs?
Gaelle Nyasa, PMHNP's prescribing is 9% brand-name and 91% generic drugs by claim count, with $165K 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 Gaelle Nyasa, PMHNP prescribe most often?
Based on 2023 Medicare Part D data, Gaelle Nyasa, PMHNP's most frequently prescribed drugs include Clozapine, Olanzapine, Risperidone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gaelle Nyasa, PMHNP accept Medicare?
Gaelle Nyasa, PMHNP appears in CMS Medicare data with 729 Part D claims and 61 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gaelle Nyasa, PMHNP's credentials?
Gaelle Nyasa, PMHNP's NPI is 1144781196 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

Compiled from official public sources by the PlainDoctor editorial team.