2026 NPPES data Registered Nurse NPI 1023773561 FNP-BC
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KRISTEN GREEN, FNP-BC

Registered Nurse in MIDDLETOWN, Delaware. 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
784
Medicare Part D claims · 165 beneficiaries · Registered Nurse avg: 1K

What the federal data shows

KRISTEN GREEN, FNP-BC filed 784 Medicare Part D claims in 2023 as a Registered Nurse in MIDDLETOWN, Delaware.

784
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.

KRISTEN GREEN, FNP-BC's Medicare Part D volume vs every U.S. prescriber

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

784 Top 29% higher than 71% 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%). This entry sits in this band. 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 KRISTEN GREEN, FNP-BC?

Quality data not reported

NPI registry status

Active

Issued 10/31/2021

NPI 1023773561

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

784 22% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Delaware

How Registered Nurse compares to other specialties among Delaware providers

Delaware providers

Registered Nurse share within Delaware

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

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).

KRISTEN GREEN, FNP-BC is a Registered Nurse provider practicing in MIDDLETOWN, Delaware, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: FNP-BC. NPI: 1023773561. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

KRISTEN GREEN, FNP-BC appears in the CMS NPPES registry as a Registered Nurse provider holding FNP-BC credentials at 621 MIDDLETOWN ODESSA RD FL 2, MIDDLETOWN, DE, 19709, with a listed phone of (302) 203-2230. NPI 1023773561 was issued on 10/31/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GREEN 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 784 prescription claims written by this provider, covering 165 Medicare beneficiaries and totaling roughly $78K 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.

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

621 MIDDLETOWN ODESSA RD FL 2
MIDDLETOWN, DE 19709

Provider Details

NPI 1023773561
Specialty Registered Nurse
Credentials FNP-BC
Gender Female
NPI Issued 10/31/2021

Hospital and facility affiliations

Facilities where KRISTEN GREEN, FNP-BC 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.

CHRISTIANA CARE HEALTH SERVICES INC
WILMINGTON, DE

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

Medicare Part D Prescribing Data

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

784
Total Claims
$78K
Total Drug Cost
165
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,902
Total Day Supply
55,295
Generic Drug Cost
$16K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
1.11
Gender Split
61% female / 39% 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
Lisinopril
48
Atorvastatin Calcium
47
Gabapentin
40
Levothyroxine Sodium
38
Amlodipine Besylate
36
Hydrochlorothiazide
36
Losartan Potassium
30
Metformin Hcl
27
Albuterol Sulfate Hfa
Albuterol Sulfate
22
Omeprazole
18

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

Registered Nurse Overview

How KRISTEN GREEN, FNP-BC 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

KRISTEN GREEN, FNP-BC's 784 claims are below the specialty average of 1,000.

Nearby Registered Nurse Providers in Delaware

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

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

Frequently Asked Questions

What is KRISTEN GREEN, FNP-BC's specialty?
KRISTEN GREEN, FNP-BC specializes in Registered Nurse and practices in MIDDLETOWN, Delaware. Credentials: FNP-BC.
How much does KRISTEN GREEN, FNP-BC prescribe under Medicare Part D?
In 2023, KRISTEN GREEN, FNP-BC wrote 784 Medicare Part D claims totaling $78K in drug costs for 165 beneficiaries.
Where is KRISTEN GREEN, FNP-BC located?
KRISTEN GREEN, FNP-BC is located at 621 MIDDLETOWN ODESSA RD FL 2, MIDDLETOWN, DE, 19709. Phone: (302) 203-2230.
What is KRISTEN GREEN, FNP-BC's NPI number?
KRISTEN GREEN, FNP-BC's National Provider Identifier (NPI) is 1023773561, issued on 10/31/2021.
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 KRISTEN GREEN, FNP-BC prescribe most often?
Based on 2023 Medicare Part D data, KRISTEN GREEN, FNP-BC's most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KRISTEN GREEN, FNP-BC accept Medicare?
KRISTEN GREEN, FNP-BC appears in CMS Medicare data with 784 Part D claims and 165 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KRISTEN GREEN, FNP-BC's credentials?
KRISTEN GREEN, FNP-BC's NPI is 1023773561 with credentials FNP-BC. 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