2026 NPPES data Pharmacist NPI 1548669492 PHARMD
Verify on CMS →

Lydia Niou, PHARMD

Pharmacist in Vancouver, Washington. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 290,447 in Pharmacist, 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
289
Medicare Part D claims · 115 beneficiaries · Pharmacist avg: 135
Generic prescribing
0%
generic claims · 52% 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

Lydia Niou, PHARMD filed 289 Medicare Part D claims in 2023 as a Pharmacist in Vancouver, Washington, prescribing 0% generic.

289
Part D claims, 2023
0%
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.

Lydia Niou, PHARMD's Medicare Part D volume vs every U.S. prescriber

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

289 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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. 2K+: 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 Lydia Niou, PHARMD?

Quality data not reported

NPI registry status

Active

Issued 08/16/2014

NPI 1548669492

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

289 114% vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in Washington

How Pharmacist compares to other specialties among Washington providers

Washington providers
Mental Health Counselor - 8.6%Mental Health Counselor8.6%Massage Therapist - 6.5%Massage Therapist6.5%Counselor - 5.7%Counselor5.7%Behavior Technician - 4.5%Behavior Technician4.5%Pharmacist - 4%Pharmacist4%Physical Therapist - 3.6%Physical Therapist3.6%
Largest specialties in Washington (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pharmacist. Verify directly:

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).

Lydia Niou, PHARMD appears in the CMS NPPES registry as a Pharmacist provider holding PHARMD credentials at 16811 SE MCGILLIVRAY BLVD, Vancouver, WA, 98683, with a listed phone of (360) 750-3206. NPI 1548669492 was issued on 08/16/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Niou 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 289 prescription claims written by this provider, covering 115 Medicare beneficiaries and totaling roughly $141K in drug spend, split 52% brand-name and 0% 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.

Pharmacist is a high-volume specialty nationwide, with 290,447 enrolled providers across 56 states and an average of 135 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

16811 SE MCGILLIVRAY BLVD
Vancouver, WA 98683

Provider Details

NPI 1548669492
Specialty Pharmacist
Credentials PHARMD
Gender Female
NPI Issued 08/16/2014

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 Lydia Niou, PHARMD. To verify Lydia Niou, PHARMD'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 · Brand-heavy

Lydia Niou, PHARMD - brand share 52.0%
Pharmacist average

52% brand-name claims vs 0% generic, on 289 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.

289
Total Claims
$141K
Total Drug Cost
115
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
583
Total Day Supply
17,148
Brand vs Generic
52% brand / 0% generic
Brand Drug Cost
$138K

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
2.40
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

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

What Lydia Niou, PHARMD 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
Warfarin Sodium
76
Jardiance
Empagliflozin
24
Metformin Hcl Er
Metformin Hcl
17
Mounjaro
Tirzepatide
16
Ozempic
Semaglutide
16
Trulicity
Dulaglutide
13
Glipizide Er
Glipizide
12
Lantus Solostar
"Insulin Glargine
N/A

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

Pharmacist Overview

How Lydia Niou, PHARMD fits within the Pharmacist landscape nationally.

290,447
Pharmacist Providers in US
56
States with Pharmacist
135
Avg Claims per Provider

Lydia Niou, PHARMD's 289 claims are above the specialty average of 135.

Nearby Pharmacist Providers in Washington

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

Compare Pharmacist 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 Washington medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Pharmacist 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 Lydia Niou, PHARMD's specialty?
Lydia Niou, PHARMD specializes in Pharmacist and practices in Vancouver, Washington. Credentials: PHARMD.
How much does Lydia Niou, PHARMD prescribe under Medicare Part D?
In 2023, Lydia Niou, PHARMD wrote 289 Medicare Part D claims totaling $141K in drug costs for 115 beneficiaries.
Where is Lydia Niou, PHARMD located?
Lydia Niou, PHARMD is located at 16811 SE MCGILLIVRAY BLVD, Vancouver, WA, 98683. Phone: (360) 750-3206.
What is Lydia Niou, PHARMD's NPI number?
Lydia Niou, PHARMD's National Provider Identifier (NPI) is 1548669492, issued on 08/16/2014.
Does Lydia Niou, PHARMD prescribe more brand-name or generic drugs?
Lydia Niou, PHARMD's prescribing is 52% brand-name and 0% generic drugs by claim count, with $138K in brand drug costs.
How many Pharmacist providers are there in the US?
There are 290,447 Pharmacist providers across 56 states in the US. The average Pharmacist provider writes 135 Medicare Part D claims per year.
What drugs does Lydia Niou, PHARMD prescribe most often?
Based on 2023 Medicare Part D data, Lydia Niou, PHARMD's most frequently prescribed drugs include Warfarin Sodium, Jardiance, Metformin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lydia Niou, PHARMD accept Medicare?
Lydia Niou, PHARMD appears in CMS Medicare data with 289 Part D claims and 115 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lydia Niou, PHARMD's credentials?
Lydia Niou, PHARMD's NPI is 1548669492 with credentials PHARMD. 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.