2026 NPPES data Ambulatory Care Pharmacist NPI 1558915579
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CHLOE NGUYEN

Ambulatory Care Pharmacist in CENTRAL POINT, 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
476
Medicare Part D claims · 177 beneficiaries · Ambulatory Care Pharmacist avg: 492
Generic prescribing
43%
generic claims · 57% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHLOE NGUYEN filed 476 Medicare Part D claims in 2023 as a Ambulatory Care Pharmacist in CENTRAL POINT, Oregon, prescribing 43% generic.

476
Part D claims, 2023
43%
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.

CHLOE NGUYEN's Medicare Part D volume vs every U.S. prescriber

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

476 Top 38% higher than 62% 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%). This entry sits in this band. 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 CHLOE NGUYEN?

Quality data not reported

NPI registry status

Active

Issued 07/29/2019

NPI 1558915579

Primary specialty

Ambulatory Care Pharmacist

Niche

3,473 US NPIs in this specialty

Medicare Part D claims

476 3% vs specialty avg

2023 prescription claims

Specialty avg: 492

Specialty distribution in Oregon

How Ambulatory Care Pharmacist compares to other specialties among Oregon providers

Oregon providers

Ambulatory Care Pharmacist share within Oregon

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Ambulatory Care 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).

CHLOE NGUYEN appears in the CMS NPPES registry as a Ambulatory Care Pharmacist provider at 870 S FRONT ST STE 200, CENTRAL POINT, OR, 97502, with a listed phone of (503) 893-6900. NPI 1558915579 was issued on 07/29/2019. 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 476 prescription claims written by this provider, covering 177 Medicare beneficiaries and totaling roughly $265K in drug spend, split 57% brand-name and 43% 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.

Ambulatory Care Pharmacist is a narrow specialty nationwide, with 3,473 enrolled providers across 52 states and an average of 492 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

870 S FRONT ST STE 200
CENTRAL POINT, OR 97502

Provider Details

NPI 1558915579
Specialty Ambulatory Care Pharmacist
Gender Female
NPI Issued 07/29/2019

Brand vs generic prescribing mix · Brand-heavy

CHLOE NGUYEN — brand share 57.0%
Specialty average (est.)

57% brand-name claims vs 43% generic, on 476 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.

476
Total Claims
$265K
Total Drug Cost
177
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
947
Total Day Supply
27,979
Brand vs Generic
57% brand / 43% generic
Brand Drug Cost
$259K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
70.4 years
Avg HCC Risk Score
2.08
Gender Split
57% female / 43% male
Age Distribution
<65: 34, 65-74: 81, 75-84: 47, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

What CHLOE NGUYEN 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
77
Trulicity
Dulaglutide
45
Jardiance
Empagliflozin
36
Ozempic
Semaglutide
36
Metformin Hcl
18
Metformin Hcl Er
Metformin Hcl
17
Levemir Flexpen
Insulin Detemir
15
Glipizide Er
Glipizide
11
Basaglar Kwikpen U-100
"Insulin Glargine
N/A
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.

Ambulatory Care Pharmacist Overview

How CHLOE NGUYEN fits within the Ambulatory Care Pharmacist landscape nationally.

3,473
Ambulatory Care Pharmacist Providers in US
52
States with Ambulatory Care Pharmacist
492
Avg Claims per Provider

CHLOE NGUYEN's 476 claims are below the specialty average of 492.

Nearby Ambulatory Care Pharmacist Providers in Oregon

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

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

Frequently Asked Questions

What is CHLOE NGUYEN's specialty?
CHLOE NGUYEN specializes in Ambulatory Care Pharmacist and practices in CENTRAL POINT, Oregon.
How much does CHLOE NGUYEN prescribe under Medicare Part D?
In 2023, CHLOE NGUYEN wrote 476 Medicare Part D claims totaling $265K in drug costs for 177 beneficiaries.
Where is CHLOE NGUYEN located?
CHLOE NGUYEN is located at 870 S FRONT ST STE 200, CENTRAL POINT, OR, 97502. Phone: (503) 893-6900.
What is CHLOE NGUYEN's NPI number?
CHLOE NGUYEN's National Provider Identifier (NPI) is 1558915579, issued on 07/29/2019.
Does CHLOE NGUYEN prescribe more brand-name or generic drugs?
CHLOE NGUYEN's prescribing is 57% brand-name and 43% generic drugs by claim count, with $259K in brand drug costs.
How many Ambulatory Care Pharmacist providers are there in the US?
There are 3,473 Ambulatory Care Pharmacist providers across 52 states in the US. The average Ambulatory Care Pharmacist provider writes 492 Medicare Part D claims per year.
What drugs does CHLOE NGUYEN prescribe most often?
Based on 2023 Medicare Part D data, CHLOE NGUYEN's most frequently prescribed drugs include Warfarin Sodium, Trulicity, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHLOE NGUYEN accept Medicare?
CHLOE NGUYEN appears in CMS Medicare data with 476 Part D claims and 177 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHLOE NGUYEN's credentials?
CHLOE NGUYEN's NPI is 1558915579. 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