2026 NPPES data Psychiatric/Mental Health Registered Nurse NPI 1003315045
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RYAN TATEISHI

Psychiatric/Mental Health Registered Nurse in TIGARD, Oregon. 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
1K
Medicare Part D claims · 137 beneficiaries · Psychiatric/Mental Health Registered Nurse avg: 893
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

RYAN TATEISHI filed 1,194 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Registered Nurse in TIGARD, Oregon, prescribing 98% generic.

1K
Part D claims, 2023
98%
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.

RYAN TATEISHI's Medicare Part D volume vs every U.S. prescriber

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

1,194 Top 23% higher than 77% 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%). This entry sits in this band. 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 RYAN TATEISHI?

Quality data not reported

NPI registry status

Active

Issued 02/05/2018

NPI 1003315045

Primary specialty

Psychiatric/Mental Health Registered Nurse

Mid-sized

11,711 US NPIs in this specialty

Medicare Part D claims

1,194 34% vs specialty avg

2023 prescription claims

Specialty avg: 893

Specialty distribution in Oregon

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

Oregon providers

Psychiatric/Mental Health Registered Nurse share within Oregon

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

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).

RYAN TATEISHI appears in the CMS NPPES registry as a Psychiatric/Mental Health Registered Nurse provider at 11740 SW 68TH PKWY STE 200, TIGARD, OR, 97223, with a listed phone of (425) 477-4216. NPI 1003315045 was issued on 02/05/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TATEISHI 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 1,194 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $53K in drug spend, split 2% brand-name and 98% 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

11740 SW 68TH PKWY STE 200
TIGARD, OR 97223

Provider Details

NPI 1003315045
Specialty Psychiatric/Mental Health Registered Nurse
Gender Male
NPI Issued 02/05/2018

Hospital and facility affiliations

Facilities where RYAN TATEISHI 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.

SALEM HEALTH
DALLAS, OR

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

RYAN TATEISHI — brand share 2.0%
Specialty average (est.)

2% brand-name claims vs 98% generic, on 1,194 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.

1,194
Total Claims
$53K
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,399
Total Day Supply
40,115
Brand vs Generic
2% brand / 98% generic
Brand Drug Cost
$17K
Generic Drug Cost
$36K

Patient Demographics

Average Patient Age
61.3 years
Avg HCC Risk Score
1.36
Gender Split
69% female / 31% male
Age Distribution
<65: 60, 65-74: 57, 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 RYAN TATEISHI 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
Clonazepam
82
Sertraline Hcl
74
Quetiapine Fumarate
69
Trazodone Hcl
62
Buspirone Hcl
61
Fluoxetine Hcl
56
Mirtazapine
52
Divalproex Sodium
50
Prazosin Hcl
48
Risperidone
48

* 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 RYAN TATEISHI 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

RYAN TATEISHI's 1,194 claims are above the specialty average of 893.

Nearby Psychiatric/Mental Health Registered Nurse Providers in Oregon

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

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

Frequently Asked Questions

What is RYAN TATEISHI's specialty?
RYAN TATEISHI specializes in Psychiatric/Mental Health Registered Nurse and practices in TIGARD, Oregon.
How much does RYAN TATEISHI prescribe under Medicare Part D?
In 2023, RYAN TATEISHI wrote 1,194 Medicare Part D claims totaling $53K in drug costs for 137 beneficiaries.
Where is RYAN TATEISHI located?
RYAN TATEISHI is located at 11740 SW 68TH PKWY STE 200, TIGARD, OR, 97223. Phone: (425) 477-4216.
What is RYAN TATEISHI's NPI number?
RYAN TATEISHI's National Provider Identifier (NPI) is 1003315045, issued on 02/05/2018.
Does RYAN TATEISHI prescribe more brand-name or generic drugs?
RYAN TATEISHI's prescribing is 2% brand-name and 98% generic drugs by claim count, with $17K 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 RYAN TATEISHI prescribe most often?
Based on 2023 Medicare Part D data, RYAN TATEISHI's most frequently prescribed drugs include Clonazepam, Sertraline Hcl, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RYAN TATEISHI accept Medicare?
RYAN TATEISHI appears in CMS Medicare data with 1,194 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RYAN TATEISHI's credentials?
RYAN TATEISHI's NPI is 1003315045. 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