2026 NPPES data Primary Care Nurse Practitioner NPI 1407417645 CNP
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Kristen Derderian, CNP

Primary Care Nurse Practitioner in Saint Louis, Missouri. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,138 in Primary Care 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
1K
Medicare Part D claims · 442 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$351.13
16 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Kristen Derderian, CNP filed 1,478 Medicare Part D claims in 2023 as a Primary Care Nurse Practitioner in Saint Louis, Missouri, prescribing 86% generic.

1K
Part D claims, 2023
86%
generic prescribing
$351.13
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.

Kristen Derderian, CNP's Medicare Part D volume vs every U.S. prescriber

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

1,478 Top 20% higher than 80% 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%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 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 Derderian, CNP?

Quality data not reported

NPI registry status

Active

Issued 06/27/2019

NPI 1407417645

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,138 US NPIs in this specialty

Medicare Part D claims

1,478 8% vs specialty avg

2023 prescription claims

Specialty avg: 1,363

Specialty distribution in Missouri

How Primary Care Nurse Practitioner compares to other specialties among Missouri providers

Missouri providers

Largest specialties in Missouri (% of in-state providers)

Pharmacist - 4.8%Pharmacist4.8%Professional Counselor - 4.8%Professional Counselor4.8%Speech-Language Pathologist - 4.5%Speech-Language Pathologist4.5%Clinical Social Worker - 4.5%Clinical Social Worker4.5%Family Nurse Practitioner - 4.3%Family Nurse Practitioner4.3%Physical Therapist - 4%Physical Therapist4%Primary Care Nurse Practitioner - 0.1%Primary Care Nurse Practitioner0.1%
Largest specialties in Missouri (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Primary Care Nurse Practitioner. Verify directly:

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 Derderian, CNP appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding CNP credentials at 12200 WEBER HILL RD STE 100, Saint Louis, MO, 63127, with a listed phone of (314) 698-2500. NPI 1407417645 was issued on 06/27/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Derderian 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 1,478 prescription claims written by this provider, covering 442 Medicare beneficiaries and totaling roughly $143K in drug spend, split 13% brand-name and 86% generic by claim count, with an opioid prescribing rate of 2.1%. 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.

Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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

12200 WEBER HILL RD STE 100
Saint Louis, MO 63127

Provider Details

NPI 1407417645
Specialty Primary Care Nurse Practitioner
Credentials CNP
Gender Female
NPI Issued 06/27/2019

Hospital and facility affiliations

Facilities where Kristen Derderian, CNP 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.

Mass General Brigham Community Physicians Inc
Westwood, MA

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

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 Kristen Derderian, CNP. Source: openpaymentsdata.cms.gov.

Total received

$351

Largest payer

Lilly USA, LLC

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

Kristen Derderian, CNP - brand share 13.0%
Primary Care Nurse Practitioner average

13% brand-name claims vs 86% generic, on 1,478 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.

1,478
Total Claims
$143K
Total Drug Cost
442
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,210
Total Day Supply
90,848
Brand vs Generic
13% brand / 86% generic
Brand Drug Cost
$121K
Generic Drug Cost
$22K
Opioid Claims
31 (2.1% rate)
Antibiotic Claims
84

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.17
Gender Split
69% female / 31% male
Age Distribution
<65: 61, 65-74: 215, 75-84: 123, 85+: 43

Top Prescribed Drugs (Medicare Part D)

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

What Kristen Derderian, CNP 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
Amlodipine Besylate
75
Atorvastatin Calcium
73
Levothyroxine Sodium
62
Lisinopril
51
Omeprazole
45
Albuterol Sulfate Hfa
Albuterol Sulfate
42
Losartan Potassium
35
Prednisone
31
Metoprolol Succinate
27
Meloxicam
26

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

Primary Care Nurse Practitioner Overview

How Kristen Derderian, CNP fits within the Primary Care Nurse Practitioner landscape nationally.

10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider

Kristen Derderian, CNP's 1,478 claims are above the specialty average of 1,363.

Nearby Primary Care Nurse Practitioner Providers in Missouri

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

Compare Primary Care 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 Missouri medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Primary Care 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.

Frequently Asked Questions

What is Kristen Derderian, CNP's specialty?
Kristen Derderian, CNP specializes in Primary Care Nurse Practitioner and practices in Saint Louis, Missouri. Credentials: CNP.
How much does Kristen Derderian, CNP prescribe under Medicare Part D?
In 2023, Kristen Derderian, CNP wrote 1,478 Medicare Part D claims totaling $143K in drug costs for 442 beneficiaries.
Where is Kristen Derderian, CNP located?
Kristen Derderian, CNP is located at 12200 WEBER HILL RD STE 100, Saint Louis, MO, 63127. Phone: (314) 698-2500.
What is Kristen Derderian, CNP's NPI number?
Kristen Derderian, CNP's National Provider Identifier (NPI) is 1407417645, issued on 06/27/2019.
Does Kristen Derderian, CNP prescribe more brand-name or generic drugs?
Kristen Derderian, CNP's prescribing is 13% brand-name and 86% generic drugs by claim count, with $121K in brand drug costs.
Does Kristen Derderian, CNP prescribe opioids?
Yes, Kristen Derderian, CNP had 31 opioid claims in 2023 with an opioid prescribing rate of 2.1%.
How many Primary Care Nurse Practitioner providers are there in the US?
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does Kristen Derderian, CNP prescribe most often?
Based on 2023 Medicare Part D data, Kristen Derderian, CNP's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kristen Derderian, CNP accept Medicare?
Kristen Derderian, CNP appears in CMS Medicare data with 1,478 Part D claims and 442 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kristen Derderian, CNP's credentials?
Kristen Derderian, CNP's NPI is 1407417645 with credentials CNP. 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

Compiled from official public sources by the PlainDoctor editorial team.