2026 NPPES data Registered Nurse NPI 1255938940 MSN, AGNP
Verify on CMS →

SHIRLEY KUAN, MSN, AGNP

Registered Nurse in BRIDGEPORT, Connecticut. 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 · 193 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.4K
63 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SHIRLEY KUAN, MSN, AGNP filed 2,150 Medicare Part D claims in 2023 as a Registered Nurse in BRIDGEPORT, Connecticut, prescribing 79% generic.

2K
Part D claims, 2023
79%
generic prescribing
$1.4K
industry payments (Sunshine Act)

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.

SHIRLEY KUAN, MSN, AGNP's Medicare Part D volume vs every U.S. prescriber

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

2,150 Top 15% higher than 85% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 SHIRLEY KUAN, MSN, AGNP?

Quality data not reported

NPI registry status

Active

Issued 10/06/2020

NPI 1255938940

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

2,150 115% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Connecticut

How Registered Nurse compares to other specialties among Connecticut providers

Connecticut providers

Registered Nurse share within Connecticut

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Connecticut

Specialty board-certification context

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

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

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

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

SHIRLEY KUAN, MSN, AGNP appears in the CMS NPPES registry as a Registered Nurse provider holding MSN, AGNP credentials at 968 FAIRFIELD AVE, BRIDGEPORT, CT, 06605, with a listed phone of (203) 330-6000. NPI 1255938940 was issued on 10/06/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KUAN 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 2,150 prescription claims written by this provider, covering 193 Medicare beneficiaries and totaling roughly $399K in drug spend, split 21% brand-name and 79% 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.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

968 FAIRFIELD AVE
BRIDGEPORT, CT 06605

Provider Details

NPI 1255938940
Specialty Registered Nurse
Credentials MSN, AGNP
Gender Female
NPI Issued 10/06/2020

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 SHIRLEY KUAN, MSN, AGNP. Source: openpaymentsdata.cms.gov.

Total received

$1.4K

Largest payer

ABBVIE 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.

Brand vs generic prescribing mix · Typical

SHIRLEY KUAN, MSN, AGNP — brand share 21.0%
Specialty average (est.)

21% brand-name claims vs 79% generic, on 2,150 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.

2,150
Total Claims
$399K
Total Drug Cost
193
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,596
Total Day Supply
103,525
Brand vs Generic
21% brand / 79% generic
Brand Drug Cost
$354K
Generic Drug Cost
$40K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
65.5 years
Avg HCC Risk Score
1.49
Gender Split
68% female / 32% male
Age Distribution
<65: 69, 65-74: 81, 75-84: 31, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

What SHIRLEY KUAN, MSN, AGNP 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
Atorvastatin Calcium
119
Amlodipine Besylate
108
Metformin Hcl
77
Albuterol Sulfate Hfa
Albuterol Sulfate
76
Famotidine
73
Farxiga
Dapagliflozin Propanediol
69
Losartan Potassium
53
Metoprolol Succinate
52
Lisinopril
51
Symbicort
Budesonide/Formoterol Fumarate
50

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

Registered Nurse Overview

How SHIRLEY KUAN, MSN, AGNP fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

SHIRLEY KUAN, MSN, AGNP's 2,150 claims are above the specialty average of 1,000.

Nearby Registered Nurse Providers in Connecticut

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

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is SHIRLEY KUAN, MSN, AGNP's specialty?
SHIRLEY KUAN, MSN, AGNP specializes in Registered Nurse and practices in BRIDGEPORT, Connecticut. Credentials: MSN, AGNP.
How much does SHIRLEY KUAN, MSN, AGNP prescribe under Medicare Part D?
In 2023, SHIRLEY KUAN, MSN, AGNP wrote 2,150 Medicare Part D claims totaling $399K in drug costs for 193 beneficiaries.
Where is SHIRLEY KUAN, MSN, AGNP located?
SHIRLEY KUAN, MSN, AGNP is located at 968 FAIRFIELD AVE, BRIDGEPORT, CT, 06605. Phone: (203) 330-6000.
What is SHIRLEY KUAN, MSN, AGNP's NPI number?
SHIRLEY KUAN, MSN, AGNP's National Provider Identifier (NPI) is 1255938940, issued on 10/06/2020.
Does SHIRLEY KUAN, MSN, AGNP prescribe more brand-name or generic drugs?
SHIRLEY KUAN, MSN, AGNP's prescribing is 21% brand-name and 79% generic drugs by claim count, with $354K in brand drug costs.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does SHIRLEY KUAN, MSN, AGNP prescribe most often?
Based on 2023 Medicare Part D data, SHIRLEY KUAN, MSN, AGNP's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHIRLEY KUAN, MSN, AGNP accept Medicare?
SHIRLEY KUAN, MSN, AGNP appears in CMS Medicare data with 2,150 Part D claims and 193 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHIRLEY KUAN, MSN, AGNP's credentials?
SHIRLEY KUAN, MSN, AGNP's NPI is 1255938940 with credentials MSN, AGNP. 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