2026 NPPES data Psychiatry Physician NPI 1629071964 M.D.
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MINERVA ARRIENDA, M.D.

Psychiatry Physician in SPOKANE, Washington. 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
2K
Medicare Part D claims · 112 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MINERVA ARRIENDA, M.D. is a Psychiatry Physician ([object Object]) practicing in SPOKANE, Washington with a Medicare Part D prescribing footprint of 2K claims across 112 beneficiaries — 9% brand-name prescribing .

What stands out: MINERVA ARRIENDA, M.D. filed 2,363 Medicare Part D claims in 2023 across SPOKANE, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

MINERVA ARRIENDA, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

MINERVA ARRIENDA, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/31/2005

NPI 1629071964

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

2,363 128% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Washington

How Psychiatry Physician compares to other specialties among Washington providers

Washington providers

Psychiatry Physician share within Washington

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatry Physician) — 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).

MINERVA ARRIENDA, M.D. is a Psychiatry Physician provider practicing in SPOKANE, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1629071964. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MINERVA ARRIENDA, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 107 S DIVISION ST, SPOKANE, WA, 99202, with a listed phone of (509) 838-4651. NPI 1629071964 was issued on 05/31/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARRIENDA 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 2,363 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $582K 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.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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

107 S DIVISION ST
SPOKANE, WA 99202

Provider Details

NPI 1629071964
Specialty Psychiatry Physician
Credentials M.D.
Gender Female
NPI Issued 05/31/2005

License & disciplinary context — Washington WMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 — they are NOT specific to MINERVA ARRIENDA, M.D.. To verify MINERVA ARRIENDA, M.D.'s current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

MINERVA ARRIENDA, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 2,363 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.

2,363
Total Claims
$582K
Total Drug Cost
112
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,607
Total Day Supply
74,666
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$495K
Generic Drug Cost
$88K

Patient Demographics

Average Patient Age
59.7 years
Avg HCC Risk Score
1.58
Gender Split
68% female / 32% male
Age Distribution
<65: 65, 65-74: 37, 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.

Drug Claims
Benztropine Mesylate
151
Trazodone Hcl
103
Quetiapine Fumarate
96
Lamotrigine
93
Haloperidol
86
Sertraline Hcl
86
Clonazepam
84
Aripiprazole
72
Prazosin Hcl
69
Fluoxetine Hcl
67

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

Psychiatry Physician Overview

How MINERVA ARRIENDA, M.D. fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

MINERVA ARRIENDA, M.D.'s 2,363 claims are above the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Washington

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

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MINERVA ARRIENDA, M.D.'s specialty?
MINERVA ARRIENDA, M.D. specializes in Psychiatry Physician and practices in SPOKANE, Washington. Credentials: M.D..
How much does MINERVA ARRIENDA, M.D. prescribe under Medicare Part D?
In 2023, MINERVA ARRIENDA, M.D. wrote 2,363 Medicare Part D claims totaling $582K in drug costs for 112 beneficiaries.
Where is MINERVA ARRIENDA, M.D. located?
MINERVA ARRIENDA, M.D. is located at 107 S DIVISION ST, SPOKANE, WA, 99202. Phone: (509) 838-4651.
What is MINERVA ARRIENDA, M.D.'s NPI number?
MINERVA ARRIENDA, M.D.'s National Provider Identifier (NPI) is 1629071964, issued on 05/31/2005.
Does MINERVA ARRIENDA, M.D. prescribe more brand-name or generic drugs?
MINERVA ARRIENDA, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $495K in brand drug costs.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does MINERVA ARRIENDA, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MINERVA ARRIENDA, M.D.'s most frequently prescribed drugs include Benztropine Mesylate, Trazodone Hcl, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MINERVA ARRIENDA, M.D. accept Medicare?
MINERVA ARRIENDA, M.D. appears in CMS Medicare data with 2,363 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MINERVA ARRIENDA, M.D.'s credentials?
MINERVA ARRIENDA, M.D.'s NPI is 1629071964 with credentials M.D.. 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