NPPES file of Aug 9, 2026

Karen M. Gregory, APRN BC

Medical-Surgical Clinical Nurse Specialist · Saint Louis, MO

Karen M. Gregory, APRN BC is a medical-surgical clinical nurse specialist with a practice address in Saint Louis, Missouri, and NPI 1053389759, issued on Mar 9, 2006. Check the license (Missouri RN121169, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1053389759
Name
Karen M. Gregory
Credential
APRN BC
Primary taxonomy
Medical-Surgical Clinical Nurse Specialist 364SM0705X
License number
RN121169 MO
Self-reported in NPPES; status is on the state search
Practice location
1034 S Brentwood Blvd, Saint Louis, MO 63117
Phone
(314) 779-4730
Enumerated
Mar 9, 2006
Record last updated
Mar 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(314) 977-4612
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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Also registered at 1034 S Brentwood Blvd

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

  1. Natalie Antin, MSW, LMSWSocial Worker1396289468
  2. Matthew Breeden, MDFamily Medicine Physician1184982084
  3. Christina Cammon, FNP-BCFamily Nurse Practitioner1770028953
  4. Carly Cooper, APRN-CNPAcute Care Nurse Practitioner1982411351
  5. Jonathan Dehner, M.D.Diagnostic Radiology Physician1578581823
  6. Bronwen Diantonio, PH.D.Psychologist1558422709

Verify Karen M. Gregory 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 RN121169
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 81.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score76.1
  2. Costout of 100 · 30%54.3
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Karen M. Gregory among 24 medical-surgical clinical nurse specialist records in Missouri

Karen M. Gregory, APRN BC is one of 24 medical-surgical clinical nurse specialist records with a practice address in Missouri. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 25% of them.

  • NPI issued2006 · 25% of these records are older, 29% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · 33% of these records are
  • Record last updated2021 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SM0705X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical-Surgical Clinical Nurse Specialist providers in Missouri

There are 24 medical-surgical clinical nurse specialist records in Missouri.

The 8 medical-surgical clinical nurse specialist records with the nearest ZIP codes

  1. Loren Vandergriff, ANPSaint Louis, MO 631221588088009
  2. Pamela Golden, APRNSt Louis, MO 631101790855690
  3. Joan Osterloh, APNSaint Louis, MO 631101053426809
  4. Rachel Smigelski-Theiss, MSN, RN, ACCNS-AGSaint Louis, MO 631101003646985
  5. Mary Swatske, AHCNSSaint Louis, MO 631101679769459
  6. Mary Dorsey, APN-BCSaint Louis, MO 631281669546396
  7. Janet Ludwig, APRN-BCSaint Louis, MO 631041578637153
  8. Michelle Heffron, AHCNSSaint Louis, MO 631361033137450

Common questions

What is Karen M. Gregory, APRN BC's NPI number?

Karen M. Gregory, APRN BC's National Provider Identifier (NPI) is 1053389759, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karen M. Gregory, APRN BC located?

The NPPES record lists a practice address at 1034 S Brentwood Blvd, Saint Louis, MO, 63117. Phone: (314) 779-4730. Providers update this record themselves, so call before visiting.

How can I verify Karen M. Gregory, APRN BC's license?

NPPES lists Missouri license number RN121169, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

What is Karen M. Gregory, APRN BC's MIPS final score?

The 2023 MIPS final score is 81.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.

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.