NPPES file of Aug 9, 2026

Mallory Rose Holzer, PA

Physician Assistant · Chesterfield, MO

Mallory Rose Holzer, PA is a physician assistant with a practice address in Chesterfield, Missouri, and NPI 1265399653, issued on Jan 7, 2026. Check the license (Missouri 2026005852, as entered in NPPES) with the Missouri board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1265399653
Name
Mallory Rose Holzer
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
2026005852 MO
Self-reported in NPPES; status is on the state search
Practice location
14532 S Outer 40 RD, Chesterfield, MO 63017
Phone
(314) 514-3500
Enumerated
Jan 7, 2026
Record last updated
Mar 17, 2026
Fax
(314) 878-7678
Medicare enrollment
Enrolled (PECOS I20260306002603); may accept Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 2025
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.
Download card Updates feed

8 nearest physician assistant records → All 1,790 in Missouri → Look up another NPI →

Also registered at 14532 S Outer 40 RD

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

  1. Stacy Baker, OTOccupational Therapist1760711345
  2. Haskel Buford, MPH, LAT, ATCAthletic Trainer1598235210
  3. Kimberlee Coppelli, PAPhysician Assistant1538613336
  4. Gregory Decker, MDPhysical Medicine & Rehabilitation Physician1437564614
  5. Sarah Fench, OTOccupational Therapist1457900193
  6. Kymberly Gomez, PAPhysician Assistant1225068851

Verify Mallory Rose Holzer 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 2026005852    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

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

Is this page about you? You can ask us to correct, restrict or remove it: how.

Mallory Rose Holzer among 1,790 physician assistant records in Missouri

Mallory Rose Holzer, PA is one of 1,790 physician assistant records with a practice address in Missouri. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2026, is newer than 96% of them.

  • NPI issued2026 · 96% of these records are older, 0% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2025 · median 2019 among the 1,250 with a school on file
  • Record last updated2026 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

43 physician assistant records list a practice address in Chesterfield

They are 43 of the 2,132 NPPES records with a practice address in Chesterfield, and 1,790 physician assistant records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,790 in Missouri → Every provider in Chesterfield → Physician Assistant nationwide →

The 8 physician assistant records with the nearest ZIP codes

  1. Lizel Alvarado, PAChesterfield, MO 630171588835953
  2. Amy Bloomfield, PAChesterfield, MO 630171790976173
  3. Andrew Clark, PAChesterfield, MO 630171497008254
  4. Kelli Dean Riegel, PA-CChesterfield, MO 630171811295710
  5. Jeremy Dunbarr, PA-CChesterfield, MO 630171831191014
  6. Kymberly Gomez, PAChesterfield, MO 630171225068851
  7. Megan Hudson, PAChesterfield, MO 630171467767087
  8. Michael Raethka, PAChesterfield, MO 630171033109392

Common questions

What is Mallory Rose Holzer, PA's NPI number?

Mallory Rose Holzer, PA's National Provider Identifier (NPI) is 1265399653, issued on Jan 7, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Mallory Rose Holzer, PA located?

The NPPES record lists a practice address at 14532 S Outer 40 RD, Chesterfield, MO, 63017. Phone: (314) 514-3500. Providers update this record themselves, so call before visiting.

How can I verify Mallory Rose Holzer, PA's license?

NPPES lists Missouri license number 2026005852, 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. 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.