2026 NPPES data Pharmacist NPI 1598050049 RPH
Verify on CMS →

TIFFANY NGUYEN, RPH

Pharmacist in LYNNWOOD, 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
154
Medicare Part D claims · 136 beneficiaries · Pharmacist avg: 135
Generic prescribing
0%
generic claims · 100% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

TIFFANY NGUYEN, RPH filed 154 Medicare Part D claims in 2023 as a Pharmacist in LYNNWOOD, Washington, prescribing 0% generic.

154
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.

TIFFANY NGUYEN, RPH's Medicare Part D volume vs every U.S. prescriber

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

154 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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. 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 TIFFANY NGUYEN, RPH?

Quality data not reported

NPI registry status

Active

Issued 06/13/2011

NPI 1598050049

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

154 14% vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in Washington

How Pharmacist compares to other specialties among Washington providers

Washington providers

Pharmacist share within Washington

1. Pharmacist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pharmacist share within Washington

Specialty board-certification context

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

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

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

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

TIFFANY NGUYEN, RPH appears in the CMS NPPES registry as a Pharmacist provider holding RPH credentials at 18305 ALDERWOOD MALL PKWY, LYNNWOOD, WA, 98037, with a listed phone of (425) 673-1395. NPI 1598050049 was issued on 06/13/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NGUYEN 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 154 prescription claims written by this provider, covering 136 Medicare beneficiaries and totaling roughly $43K in drug spend, split 100% 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

18305 ALDERWOOD MALL PKWY
LYNNWOOD, WA 98037

Provider Details

NPI 1598050049
Specialty Pharmacist
Credentials RPH
Gender Female
NPI Issued 06/13/2011

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 TIFFANY NGUYEN, RPH. To verify TIFFANY NGUYEN, RPH'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

TIFFANY NGUYEN, RPH — brand share 100.0%
Specialty average (est.)

100% brand-name claims vs 0% generic, on 154 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.

154
Total Claims
$43K
Total Drug Cost
136
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
154
Total Day Supply
154
Brand vs Generic
100% brand / 0% generic
Brand Drug Cost
$43K
Generic Drug Cost
$0

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
0.78
Gender Split
54% female / 46% male
Age Distribution
<65: 0, 65-74: 84, 75-84: 41, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Arexvy
Rsvpref3 Antigen/As01e/Pf
41
Shingrix
Varicella-Zoster Ge/As01b/Pf
41
Abrysvo
"Rsv Vacc
N/A
Boostrix Tdap
"Diphth
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 TIFFANY NGUYEN, RPH fits within the Pharmacist landscape nationally.

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

TIFFANY NGUYEN, RPH's 154 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 NGUYEN.

Compare Pharmacist nationally: see state-by-state distribution →

Frequently Asked Questions

What is TIFFANY NGUYEN, RPH's specialty?
TIFFANY NGUYEN, RPH specializes in Pharmacist and practices in LYNNWOOD, Washington. Credentials: RPH.
How much does TIFFANY NGUYEN, RPH prescribe under Medicare Part D?
In 2023, TIFFANY NGUYEN, RPH wrote 154 Medicare Part D claims totaling $43K in drug costs for 136 beneficiaries.
Where is TIFFANY NGUYEN, RPH located?
TIFFANY NGUYEN, RPH is located at 18305 ALDERWOOD MALL PKWY, LYNNWOOD, WA, 98037. Phone: (425) 673-1395.
What is TIFFANY NGUYEN, RPH's NPI number?
TIFFANY NGUYEN, RPH's National Provider Identifier (NPI) is 1598050049, issued on 06/13/2011.
Does TIFFANY NGUYEN, RPH prescribe more brand-name or generic drugs?
TIFFANY NGUYEN, RPH's prescribing is 100% brand-name and 0% generic drugs by claim count, with $43K 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 TIFFANY NGUYEN, RPH prescribe most often?
Based on 2023 Medicare Part D data, TIFFANY NGUYEN, RPH's most frequently prescribed drugs include Arexvy, Shingrix, Abrysvo. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TIFFANY NGUYEN, RPH accept Medicare?
TIFFANY NGUYEN, RPH appears in CMS Medicare data with 154 Part D claims and 136 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TIFFANY NGUYEN, RPH's credentials?
TIFFANY NGUYEN, RPH's NPI is 1598050049 with credentials RPH. 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