NPPES file of Aug 9, 2026

Kathleen Nolan Davis, PA

Physician Assistant · Saint Louis, MO

Kathleen Nolan Davis, PA is a physician assistant with a practice address in Saint Louis, Missouri, and NPI 1881289262, issued on Mar 8, 2021. Check the license (Missouri 2021023487, 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
1881289262
Name
Kathleen Nolan Davis
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
2021023487 MO
Self-reported in NPPES; status is on the state search
Practice location
615 S New Ballas RD Ste 1200, Saint Louis, MO 63141
Phone
(314) 251-2880
Enumerated
Mar 8, 2021
Record last updated
Dec 2, 2022
Medicare enrollment
Enrolled (PECOS I20210831003175); accepts Medicare assignment
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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Also registered at 615 S New Ballas RD Ste 1200

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

  1. Samuel Burton, M.D.Gastroenterology Physician1295181428
  2. Michael Clanahan, MDGastroenterology Physician1457707515
  3. William Goldkamp, MDGastroenterology Physician1831458652
  4. Parul Gor, M.D.Gastroenterology Physician1750676664
  5. Gila Hoffman, MDGastroenterology Physician1700316718
  6. Catherine Howe, MDGastroenterology Physician1033573845

Verify Kathleen Nolan Davis 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 2021023487
    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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80% fewer Medicare Part D claims than the average physician assistant in 2024

168 Medicare Part D claims for 64 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Kathleen Davis168
  2. Specialty average830

Most prescribed

  1. Pantoprazole Sodium44 claims
  2. Omeprazole28 claims
  3. Budesonide Dr12 claims
  4. Famotidine12 claims
  5. Nortriptyline Hcl11 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: $55.11

2 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathleen Davis$55.11
  2. Specialty average$841.65

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 Clinic Gastroenterology LLCBallwin, MO

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

Kathleen Nolan Davis among 1,790 physician assistant records in Missouri

Kathleen Nolan Davis, 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. Its NPI, issued in 2021, is newer than 63% of them.

  • NPI issued2021 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2021 · median 2019 among the 1,250 with a school on file
  • Record last updated2022 · 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).

498 physician assistant records list a practice address in Saint Louis

They are 498 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,790 physician assistant records in Missouri.

The 8 physician assistant records with the nearest ZIP codes

  1. Christopher Berner, P.A.-CSaint Louis, MO 631411376674176
  2. Lindsey Blaha, PA-CSaint Louis, MO 631411609802123
  3. Heather Brinkman, PHY ASSIST CERTSaint Louis, MO 631411992718522
  4. Michelle BuschSaint Louis, MO 631411760585087
  5. Kara Cardinal, PASaint Louis, MO 631411619065331
  6. Amie Chang, P.A.Creve Coeur, MO 631411366557209
  7. Kara Harres, PASaint Louis, MO 631411306920277
  8. Shirley Haynes, PA-CSaint Louis, MO 631411225003551

Common questions

What is Kathleen Nolan Davis, PA's NPI number?

Kathleen Nolan Davis, PA's National Provider Identifier (NPI) is 1881289262, issued on Mar 8, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Nolan Davis, PA located?

The NPPES record lists a practice address at 615 S New Ballas RD Ste 1200, Saint Louis, MO, 63141. Phone: (314) 251-2880. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Nolan Davis, PA's license?

NPPES lists Missouri license number 2021023487, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Kathleen Nolan Davis, PA prescribe under Medicare Part D?

In 2024, Kathleen Nolan Davis, PA had 168 Medicare Part D claims for 64 beneficiaries; the average among physician assistant prescribers was 830. 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.

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.