2026 NPPES data Critical Care Medicine Registered Nurse NPI 1326425919 APRN
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KRISTYN LAMBERT, APRN

Critical Care Medicine Registered Nurse in MALVERN, Arkansas. 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
752
Medicare Part D claims · 351 beneficiaries · Critical Care Medicine Registered Nurse avg: 752
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$34.87
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KRISTYN LAMBERT, APRN filed 752 Medicare Part D claims in 2023 as a Critical Care Medicine Registered Nurse in MALVERN, Arkansas, prescribing 95% generic.

752
Part D claims, 2023
95%
generic prescribing
$34.87
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.

KRISTYN LAMBERT, APRN's Medicare Part D volume vs every U.S. prescriber

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

752 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 KRISTYN LAMBERT, APRN?

Quality data not reported

NPI registry status

Active

Issued 05/03/2015

NPI 1326425919

Primary specialty

Critical Care Medicine Registered Nurse

Mid-sized

6,529 US NPIs in this specialty

Medicare Part D claims

752 0% vs specialty avg

2023 prescription claims

Specialty avg: 752

Specialty distribution in Arkansas

How Critical Care Medicine Registered Nurse compares to other specialties among Arkansas providers

Arkansas providers

Critical Care Medicine Registered Nurse share within Arkansas

1. Critical Care Medicine Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine Registered Nurse share within Arkansas

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Critical Care Medicine 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).

KRISTYN LAMBERT, APRN appears in the CMS NPPES registry as a Critical Care Medicine Registered Nurse provider holding APRN credentials at 1002 SCHNEIDER DR STE 104, MALVERN, AR, 72104, with a listed phone of (501) 337-9994. NPI 1326425919 was issued on 05/03/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LAMBERT 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 752 prescription claims written by this provider, covering 351 Medicare beneficiaries and totaling roughly $29K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 1.7%. 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.

Critical Care Medicine Registered Nurse is a mid-sized specialty nationwide, with 6,529 enrolled providers across 53 states and an average of 752 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

1002 SCHNEIDER DR STE 104
MALVERN, AR 72104

Provider Details

NPI 1326425919
Specialty Critical Care Medicine Registered Nurse
Credentials APRN
Gender Female
NPI Issued 05/03/2015

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 KRISTYN LAMBERT, APRN. Source: openpaymentsdata.cms.gov.

Total received

$35

Largest payer

Dexcom, 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 · Generic-heavy

KRISTYN LAMBERT, APRN — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 752 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.

752
Total Claims
$29K
Total Drug Cost
351
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
947
Total Day Supply
18,312
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$19K
Generic Drug Cost
$9K
Opioid Claims
13 (1.7% rate)
Antibiotic Claims
242

Patient Demographics

Average Patient Age
70.6 years
Avg HCC Risk Score
1.09
Gender Split
68% female / 32% male
Age Distribution
<65: 57, 65-74: 170, 75-84: 104, 85+: 20

Top Prescribed Drugs (Medicare Part D)

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

What KRISTYN LAMBERT, APRN 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
Prednisone
74
Azithromycin
61
Cephalexin
52
Amoxicillin
39
Mupirocin
34
Fluticasone Propionate
32
Ciprofloxacin Hcl
29
Albuterol Sulfate Hfa
Albuterol Sulfate
26
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
26
Cyclobenzaprine Hcl
21

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

Critical Care Medicine Registered Nurse Overview

How KRISTYN LAMBERT, APRN fits within the Critical Care Medicine Registered Nurse landscape nationally.

6,529
Critical Care Medicine Registered Nurse Providers in US
53
States with Critical Care Medicine Registered Nurse
752
Avg Claims per Provider

KRISTYN LAMBERT, APRN's 752 claims are below the specialty average of 752.

Nearby Critical Care Medicine Registered Nurse Providers in Arkansas

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

Compare Critical Care Medicine Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is KRISTYN LAMBERT, APRN's specialty?
KRISTYN LAMBERT, APRN specializes in Critical Care Medicine Registered Nurse and practices in MALVERN, Arkansas. Credentials: APRN.
How much does KRISTYN LAMBERT, APRN prescribe under Medicare Part D?
In 2023, KRISTYN LAMBERT, APRN wrote 752 Medicare Part D claims totaling $29K in drug costs for 351 beneficiaries.
Where is KRISTYN LAMBERT, APRN located?
KRISTYN LAMBERT, APRN is located at 1002 SCHNEIDER DR STE 104, MALVERN, AR, 72104. Phone: (501) 337-9994.
What is KRISTYN LAMBERT, APRN's NPI number?
KRISTYN LAMBERT, APRN's National Provider Identifier (NPI) is 1326425919, issued on 05/03/2015.
Does KRISTYN LAMBERT, APRN prescribe more brand-name or generic drugs?
KRISTYN LAMBERT, APRN's prescribing is 5% brand-name and 95% generic drugs by claim count, with $19K in brand drug costs.
Does KRISTYN LAMBERT, APRN prescribe opioids?
Yes, KRISTYN LAMBERT, APRN had 13 opioid claims in 2023 with an opioid prescribing rate of 1.7%.
How many Critical Care Medicine Registered Nurse providers are there in the US?
There are 6,529 Critical Care Medicine Registered Nurse providers across 53 states in the US. The average Critical Care Medicine Registered Nurse provider writes 752 Medicare Part D claims per year.
What drugs does KRISTYN LAMBERT, APRN prescribe most often?
Based on 2023 Medicare Part D data, KRISTYN LAMBERT, APRN's most frequently prescribed drugs include Prednisone, Azithromycin, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KRISTYN LAMBERT, APRN accept Medicare?
KRISTYN LAMBERT, APRN appears in CMS Medicare data with 752 Part D claims and 351 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KRISTYN LAMBERT, APRN's credentials?
KRISTYN LAMBERT, APRN's NPI is 1326425919 with credentials APRN. 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