NPPES file of Aug 9, 2026

Katie Lynn Clark, ARNP

Family Nurse Practitioner · Cedar Rapids, IA

Katie Lynn Clark, ARNP is a family nurse practitioner with a practice address in Cedar Rapids, Iowa, and NPI 1336904432, issued on Feb 19, 2024. Check the license (Iowa A178291, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336904432
Name
Katie Lynn Clark
Credential
ARNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
A178291 IA
120268 IA
Self-reported in NPPES; status is on the state search
Practice location
600 7TH St SE, Cedar Rapids, IA 52401
Phone
(319) 398-6011
Enumerated
Feb 19, 2024
Record last updated
Feb 20, 2024
Medicare enrollment
Enrolled (PECOS I20240328001432); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 1,971 in Iowa → Look up another NPI →

Also registered at 600 7TH St SE

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Burdakin, M.D.Internal Medicine Physician1447210380
  2. Lisa Christiansen, OTHand Occupational Therapist1487752341
  3. Anthony Fish, ARNPFamily Nurse Practitioner1902195704
  4. Nancy Fisher, OTHand Occupational Therapist1306944343
  5. Shelli Grapp, ARNPNurse Practitioner1437381290
  6. Katherine Kavanaugh, ARNPCritical Care Medicine Nurse Practitioner1821058306

Verify Katie Lynn Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license A178291    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Iowa license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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13% fewer Medicare Part D claims than the average family nurse practitioner in 2024

1,136 Medicare Part D claims for 220 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 275 claims were for opioids.

  1. Katie Clark1,136
  2. Specialty average1,305

Most prescribed

  1. Hydrocodone-Acetaminophen105 claims
  2. Oxycodone-Acetaminophen55 claims
  3. Atorvastatin Calcium45 claims
  4. Lorazepam33 claims
  5. Albuterol Sulfate Hfa31 claims
  6. Morphine Sulfate Er30 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $16.86

1 payment: food and beverage; the largest payer was Vertex Pharmaceuticals Incorporated. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katie Clark$16.86
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Mercy Medical CenterCedar Rapids, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katie Lynn Clark among 1,971 family nurse practitioner records in Iowa

Katie Lynn Clark, ARNP is one of 1,971 family nurse practitioner records with a practice address in Iowa. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 86% of them.

  • NPI issued2024 · 86% of these records are older, 9% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2024 · median 2018 among the 1,398 with a school on file
  • Record last updated2024 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

131 family nurse practitioner records list a practice address in Cedar Rapids

They are 131 of the 2,949 NPPES records with a practice address in Cedar Rapids, and 1,971 family nurse practitioner records in Iowa.

All 1,971 in Iowa → Every provider in Cedar Rapids → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Hillary Behn, ARNPCedar Rapids, IA 524011952812679
  2. Sara Butler, ARNPCedar Rapids, IA 524011306228309
  3. Melanie Cassell, ARNPCedar Rapids, IA 524011952976854
  4. Tanner Castel, ARNPCedar Rapids, IA 524011417602418
  5. Samuel DrahosCedar Rapids, IA 524011619383486
  6. Elizabeth Eichhorn, ARNPCedar Rapids, IA 524011265784201
  7. Anthony Fish, ARNPCedar Rapids, IA 524011902195704
  8. Molly Garber, ARNPCedar Rapids, IA 524011871979823

Common questions

What is Katie Lynn Clark, ARNP's NPI number?

Katie Lynn Clark, ARNP's National Provider Identifier (NPI) is 1336904432, issued on Feb 19, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Katie Lynn Clark, ARNP located?

The NPPES record lists a practice address at 600 7TH St SE, Cedar Rapids, IA, 52401. Phone: (319) 398-6011. Providers update this record themselves, so call before visiting.

How can I verify Katie Lynn Clark, ARNP's license?

NPPES lists Iowa license number A178291, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Katie Lynn Clark, ARNP prescribe under Medicare Part D?

In 2024, Katie Lynn Clark, ARNP had 1,136 Medicare Part D claims for 220 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.