NPPES file of Aug 9, 2026

Kathleen N. Guerrein, NP

Nurse Practitioner · Saint Louis, MO

Kathleen N. Guerrein, NP is a nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1699819235, issued on Feb 16, 2007. Check the license (Missouri 101797 PNP, as entered in NPPES) with the Missouri 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
1699819235
Name
Kathleen N. Guerrein
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
101797 PNP MO
Self-reported in NPPES; status is on the state search
Practice location
4414 N Florissant Ave, Saint Louis, MO 63107
Phone
(314) 898-1700
Enumerated
Feb 16, 2007
Record last updated
Sep 2, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(314) 814-8542
Medicaid ID
425106804 MO
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest nurse practitioner records → All 1,720 in Missouri → Look up another NPI →

Also registered at 4414 N Florissant Ave

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

  1. Kristia Abernathy, MDFamily Medicine Physician1710545405
  2. Amy Adams, HYGIENISTDental Hygienist1245741784
  3. Nicole Biddinger, PA-CPhysician Assistant1154972958
  4. Lisa Bryant, LCSWClinical Social Worker1558140921
  5. Kelli Dorsey, D.D.S.Public Health Dentistry1528320447
  6. Carla Duban, MDPediatrics Physician1154670826

Verify Kathleen N. Guerrein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 101797 PNP    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 Missouri license search

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Industry payments in 2024: $174.91

9 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathleen Guerrein$174.91
  2. Specialty average$791.64

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

Kathleen N. Guerrein among 1,720 nurse practitioner records in Missouri

Kathleen N. Guerrein, NP is one of 1,720 nurse practitioner records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.

  • NPI issued2007 · 18% of these records are older, 77% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2016 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

437 nurse practitioner records list a practice address in Saint Louis

They are 437 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,720 nurse practitioner records in Missouri.

All 1,720 in Missouri → Every provider in Saint Louis → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Ann Way, DNP, APRNSaint Louis, MO 631071285599480
  2. Susan Bender, RNSaint Louis, MO 631081801094594
  3. Norma Carter, FNP-BCSaint Louis, MO 631061144652850
  4. Vijayalakshmi Divakaran, ARNP, BCSaint Louis, MO 631061972787398
  5. Kim French, ANPSaint Louis, MO 631081003119348
  6. Lynn Golec, FNPSaint Louis, MO 631081942562830
  7. Margaret Kavanaugh, ANPSaint Louis, MO 631081689974388
  8. Kelsie Mentz, ACNPSaint Louis, MO 631081306214697

Common questions

What is Kathleen N. Guerrein, NP's NPI number?

Kathleen N. Guerrein, NP's National Provider Identifier (NPI) is 1699819235, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen N. Guerrein, NP located?

The NPPES record lists a practice address at 4414 N Florissant Ave, Saint Louis, MO, 63107. Phone: (314) 898-1700. Providers update this record themselves, so call before visiting.

How can I verify Kathleen N. Guerrein, NP's license?

NPPES lists Missouri license number 101797 PNP, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity 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.