2026 NPPES data Registered Nurse NPI 1821360330
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Katherine Flower

Registered Nurse in Buffalo, New York. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 175,652 in Registered Nurse, 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
183
Medicare Part D claims · 65 beneficiaries · Registered Nurse avg: 1K
MIPS score
87.1/100
▲ 4 pts above national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Katherine Flower reported a CMS MIPS final score of 87.1/100 - above the 83.1 national average - and filed 183 Medicare Part D claims in 2023.

87.1/100
MIPS score · +4 vs avg
183
Part D claims, 2023

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.

Katherine Flower's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

87 Top 46% higher than 54% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Katherine Flower sits

This provider among registered nurse peers

Across the 3,327 registered nurse providers who report both Medicare Part D prescribing and a MIPS quality score, Katherine Flower writes more Part D claims than 36% of them and scores higher on MIPS quality than 55% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 20Katherine Flower-Part D claim volume, percentile in specialty: 36 · MIPS quality, percentile: 55
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one registered nurse peer from a representative sample of 60; the gold marker is Katherine Flower. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Katherine Flower?

High performer (top quartile)

NPI registry status

Active

Issued 01/30/2012

NPI 1821360330

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

183 82% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

MIPS final score

87.1/100 4 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in New York

How Registered Nurse compares to other specialties among New York providers

New York providers

Largest specialties in New York (% of in-state providers)

Student in an Organized Health Care Education/Training Program - 7.8%Student in an Organized Health Care Education/Training Program7.8%Registered Nurse - 5.2%Registered Nurse5.2%Clinical Social Worker - 4.9%Clinical Social Worker4.9%Social Worker - 4.5%Social Worker4.5%Speech-Language Pathologist - 4.5%Speech-Language Pathologist4.5%Licensed Practical Nurse - 4.3%Licensed Practical Nurse4.3%
Largest specialties in New York (% of in-state providers)

Medicare quality performance, MIPS

Katherine Flower's 2023 MIPS final score plotted against the Registered Nurse national average

High performer (top quartile)
MIPS Final Score
87.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Registered Nurse) - 87.1/100 vs national avg 83.1

0%100%National avg83%87.1%
MIPS final score (Registered Nurse) - 87.1/100 vs national avg 83.1

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).

Katherine Flower appears in the CMS NPPES registry as a Registered Nurse provider at 85 HIGH ST, Buffalo, NY, 14203, with a listed phone of (716) 630-1000. NPI 1821360330 was issued on 01/30/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Flower 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 183 prescription claims written by this provider, covering 65 Medicare beneficiaries and totaling roughly $23K in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 87.1/100 for the 2023 performance year (Quality 82.3, Cost 74.9), compared with the national average of 83.1.

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

85 HIGH ST
Buffalo, NY 14203

Provider Details

NPI 1821360330
Specialty Registered Nurse
Gender Female
NPI Issued 01/30/2012

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

87.1456
Final Score
Avg: 83.1
82.2914
Quality
74.8605
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Katherine Flower 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.

According to CMS billing records, Katherine Flower is affiliated with 4 Medicare-billing facilities.

Academic Medicine Services, Inc.
Buffalo, NY
Buffalo Medical Group, P.C.
Buffalo, NY
Erie County Medical Center Corporation
Buffalo, NY
Sisters OF Charity Hospital OF Buffalo New York
Buffalo, NY

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

License & disciplinary context - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to Katherine Flower. To verify Katherine Flower's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

183
Total Claims
$23K
Total Drug Cost
65
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
188
Total Day Supply
4,316
Generic Drug Cost
$2K
Antibiotic Claims
18

Patient Demographics

Average Patient Age
78.6 years
Avg HCC Risk Score
2.43
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Eliquis
Apixaban
19
Pantoprazole Sodium
11

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

Registered Nurse Overview

How Katherine Flower 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

Katherine Flower's 183 claims are below the specialty average of 1,000.

Nearby Registered Nurse Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Flower.

Compare Registered Nurse 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 New York medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Registered Nurse 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 Katherine Flower's specialty?
Katherine Flower specializes in Registered Nurse and practices in Buffalo, New York.
How much does Katherine Flower prescribe under Medicare Part D?
In 2023, Katherine Flower wrote 183 Medicare Part D claims totaling $23K in drug costs for 65 beneficiaries.
What is Katherine Flower's Medicare quality score?
Katherine Flower has a CMS MIPS Final Score of 87.1/100 (Quality: 82.3, Cost: 74.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Katherine Flower located?
Katherine Flower is located at 85 HIGH ST, Buffalo, NY, 14203. Phone: (716) 630-1000.
What is Katherine Flower's NPI number?
Katherine Flower's National Provider Identifier (NPI) is 1821360330, issued on 01/30/2012.
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 Katherine Flower prescribe most often?
Based on 2023 Medicare Part D data, Katherine Flower's most frequently prescribed drugs include Eliquis, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Katherine Flower accept Medicare?
Katherine Flower appears in CMS Medicare data with 183 Part D claims and 65 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katherine Flower's credentials?
Katherine Flower's NPI is 1821360330. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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.