2026 NPPES data Physician Assistant NPI 1023415817
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TATIANA ARON

Physician Assistant in SEATTLE, 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
444
Medicare Part D claims · 220 beneficiaries · Physician Assistant avg: 790
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$107.65
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: TATIANA ARON is a Physician Assistant ([object Object]) practicing in SEATTLE, Washington with a Medicare Part D prescribing footprint of 444 claims across 220 beneficiaries — 4% brand-name prescribing . Industry payments of $107.65 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: TATIANA ARON filed 444 Medicare Part D claims in 2023 across SEATTLE, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

TATIANA ARON at a glance

Quality data not reported

NPI registry status

Active

Issued 11/24/2014

NPI 1023415817

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

444 44% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Washington

How Physician Assistant compares to other specialties among Washington providers

Washington providers

Physician Assistant share within Washington

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Washington

Specialty board-certification context

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

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

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

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

TATIANA ARON is a Physician Assistant provider practicing in SEATTLE, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1023415817. 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.

TATIANA ARON appears in the CMS NPPES registry as a Physician Assistant provider at 1100 9TH AVE, SEATTLE, WA, 98101, with a listed phone of (206) 223-6600. NPI 1023415817 was issued on 11/24/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARON 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 444 prescription claims written by this provider, covering 220 Medicare beneficiaries and totaling roughly $13K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 5.6%. 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

1100 9TH AVE
SEATTLE, WA 98101

Provider Details

NPI 1023415817
Specialty Physician Assistant
Gender Female
NPI Issued 11/24/2014

Hospital and facility affiliations

Facilities where TATIANA ARON 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.

VIRGINIA MASON MEDICAL CENTER
★★★★★ 5/5
ISSAQUAH, WA
Acute Care Hospitals
CMS CCN: 500005

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for TATIANA ARON. Source: openpaymentsdata.cms.gov.

Total received

$108

Largest payer

ALK-Abello, Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 TATIANA ARON. To verify TATIANA ARON'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

TATIANA ARON — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 444 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.

444
Total Claims
$13K
Total Drug Cost
220
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
713
Total Day Supply
17,975
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$6K
Generic Drug Cost
$6K
Opioid Claims
25 (5.6% rate)
Antibiotic Claims
58

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
0.95
Gender Split
59% female / 41% male
Age Distribution
<65: 15, 65-74: 119, 75-84: 64, 85+: 22

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Amlodipine Besylate
24
Doxycycline Hyclate
19
Losartan Potassium
19
Atorvastatin Calcium
17
Lisinopril
15
Oxycodone Hcl
14
Levothyroxine Sodium
13
Paxlovid (Eua)
Nirmatrelvir/Ritonavir
13
Mupirocin
12
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
11

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

Physician Assistant Overview

How TATIANA ARON fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

TATIANA ARON's 444 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Washington

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

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

Frequently Asked Questions

What is TATIANA ARON's specialty?
TATIANA ARON specializes in Physician Assistant and practices in SEATTLE, Washington.
How much does TATIANA ARON prescribe under Medicare Part D?
In 2023, TATIANA ARON wrote 444 Medicare Part D claims totaling $13K in drug costs for 220 beneficiaries.
Where is TATIANA ARON located?
TATIANA ARON is located at 1100 9TH AVE, SEATTLE, WA, 98101. Phone: (206) 223-6600.
What is TATIANA ARON's NPI number?
TATIANA ARON's National Provider Identifier (NPI) is 1023415817, issued on 11/24/2014.
Does TATIANA ARON prescribe more brand-name or generic drugs?
TATIANA ARON's prescribing is 4% brand-name and 96% generic drugs by claim count, with $6K in brand drug costs.
Does TATIANA ARON prescribe opioids?
Yes, TATIANA ARON had 25 opioid claims in 2023 with an opioid prescribing rate of 5.6%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does TATIANA ARON prescribe most often?
Based on 2023 Medicare Part D data, TATIANA ARON's most frequently prescribed drugs include Amlodipine Besylate, Doxycycline Hyclate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TATIANA ARON accept Medicare?
TATIANA ARON appears in CMS Medicare data with 444 Part D claims and 220 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TATIANA ARON's credentials?
TATIANA ARON's NPI is 1023415817. 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