NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1497227854
Verify on CMS → Kathrine Walker
Family Nurse Practitioner in North Branford, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 210,832 in Family Nurse Practitioner, 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
6K
Medicare Part D claims · 507 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
87%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.2/100
▲ 11 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Kathrine Walker reported a CMS MIPS final score of 94.2/100 - above the 83.1 national average - and filed 6,103 Medicare Part D claims in 2023.
- 94.2/100
- MIPS score · +11 vs avg
- 6K
- Part D claims, 2023
- 87%
- 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.
Kathrine Walker's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
94 Top 25% higher than 75% of 477,587 scored providers
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 Kathrine Walker sits
This provider among family nurse practitioner peers
Across the 27,154 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Kathrine Walker writes more Part D claims than 97% of them and scores higher on MIPS quality than 77% - placing this provider in the high-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
Each dot is one family nurse practitioner peer from a representative sample of 60; the gold marker is Kathrine Walker. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Kathrine Walker?
High performer (top quartile)Primary specialty
Family Nurse Practitioner
Medicare Part D claims
6,103 399% vs specialty avg
MIPS final score
94.2/100 11.1 pts vs avg
Specialty distribution in Connecticut
How Family Nurse Practitioner compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Kathrine Walker's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 94.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Family Nurse Practitioner) - 94.2/100 vs national avg 83.1
How MIPS and board certification work
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).
Kathrine Walker appears in the CMS NPPES registry as a Family Nurse Practitioner provider at 229 BRANFORD RD UNIT 424, North Branford, CT, 06471, with a listed phone of (860) 575-8456. NPI 1497227854 was issued on 12/26/2018.
Medicare Part D records for calendar year 2023 show 6,103 prescription claims written by this provider, covering 507 Medicare beneficiaries and totaling roughly $461K in drug spend, split 12% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.2/100 for the 2023 performance year (Quality 81.9), compared with the national average of 83.1.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 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
Provider Details
| NPI | 1497227854 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Gender | Female |
| NPI Issued | 12/26/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.1777
Final Score
Avg: 83.1
81.9442
Quality
99.3986
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Kathrine Walker 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.
Star Medical Care PLLC
Hamden, CT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Kathrine Walker - brand share 12.0%
Family Nurse Practitioner average
12% brand-name claims vs 87% generic, on 6,103 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.
6,103
Total Claims
$461K
Total Drug Cost
507
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,277
- Total Day Supply
- 215,962
- Brand vs Generic
- 12% brand / 87% generic
- Brand Drug Cost
- $319K
- Generic Drug Cost
- $139K
- Opioid Claims
- 120 (2.0% rate)
- Antibiotic Claims
- 227
Patient Demographics
- Average Patient Age
- 77.8 years
- Avg HCC Risk Score
- 1.67
- Gender Split
- 77% female / 23% male
- Age Distribution
- <65: 36, 65-74: 178, 75-84: 143, 85+: 150
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kathrine Walker prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
340 claims
- Atorvastatin Calcium
Atorvastatin Calcium
241 claims
- Trazodone Hcl
Trazodone Hcl
220 claims
- Amlodipine Besylate
Amlodipine Besylate
172 claims
- Escitalopram Oxalate
Escitalopram Oxalate
163 claims
- Lisinopril
Lisinopril
152 claims
- Mirtazapine
Mirtazapine
145 claims
- Furosemide 129
Furosemide
129 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 340 |
| Atorvastatin Calcium | 241 |
| Trazodone Hcl | 220 |
| Amlodipine Besylate | 172 |
| Escitalopram Oxalate | 163 |
| Lisinopril | 152 |
| Mirtazapine | 145 |
| Furosemide | 129 |
| Losartan Potassium | 123 |
| Pantoprazole Sodium | 112 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Kathrine Walker fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Kathrine Walker's 6,103 claims are above the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Walker.
Dr. Renato Abastillas
APRN
Rocky Hill, CT
Farhiya Abdi
South Windsor, CT
Dr. Maryam Abdishoo
NP
Putnam, CT
Dr. Anwar Abdulrehman
APRN
Danbury, CT
Denise Ace
Stratford, CT
Compare Family Nurse Practitioner 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Nurse Practitioner 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.
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Frequently Asked Questions
What is Kathrine Walker's specialty? ▼
Kathrine Walker specializes in Family Nurse Practitioner and practices in North Branford, Connecticut.
How much does Kathrine Walker prescribe under Medicare Part D? ▼
In 2023, Kathrine Walker wrote 6,103 Medicare Part D claims totaling $461K in drug costs for 507 beneficiaries.
What is Kathrine Walker's Medicare quality score? ▼
Kathrine Walker has a CMS MIPS Final Score of 94.2/100 (Quality: 81.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kathrine Walker located? ▼
Kathrine Walker is located at 229 BRANFORD RD UNIT 424, North Branford, CT, 06471. Phone: (860) 575-8456.
What is Kathrine Walker's NPI number? ▼
Kathrine Walker's National Provider Identifier (NPI) is 1497227854, issued on 12/26/2018.
Does Kathrine Walker prescribe more brand-name or generic drugs? ▼
Kathrine Walker's prescribing is 12% brand-name and 87% generic drugs by claim count, with $319K in brand drug costs.
Does Kathrine Walker prescribe opioids? ▼
Yes, Kathrine Walker had 120 opioid claims in 2023 with an opioid prescribing rate of 2.0%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Kathrine Walker prescribe most often? ▼
Based on 2023 Medicare Part D data, Kathrine Walker's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kathrine Walker accept Medicare? ▼
Kathrine Walker appears in CMS Medicare data with 6,103 Part D claims and 507 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kathrine Walker's credentials? ▼
Kathrine Walker's NPI is 1497227854. 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
View source datasets and methodology notes
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.