NPPES file of Aug 9, 2026

Isabel Perry Warren, PA

Physician Assistant · Chattanooga, TN

Isabel Perry Warren, PA is a physician assistant with a practice address in Chattanooga, Tennessee, and NPI 1154182228, issued on Jan 17, 2024. Check the license (Tennessee 5844, as entered in NPPES) with the Tennessee 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
1154182228
Name
Isabel Perry Warren
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
5844 TN
Self-reported in NPPES; status is on the state search
Practice location
1726 Gunbarrel RD Ste 200, Chattanooga, TN 37421
Phone
(423) 954-9017
Enumerated
Jan 17, 2024
Record last updated
Feb 12, 2024
Fax
(423) 498-1597
Medicare enrollment
Enrolled (PECOS I20240228001529); 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 1726 Gunbarrel RD Ste 200

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

  1. Christopher Lowe, M.D.Dermatology Physician1831480524
  2. Mary Shuster, M.D.Dermatology Physician1255774238
  3. Cynthia Witt, NP-CNurse Practitioner1588904221

Verify Isabel Perry Warren in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license 5844
    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 Tennessee 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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82% fewer Medicare Part D claims than the average physician assistant in 2024

149 Medicare Part D claims for 79 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Isabel Warren149
  2. Specialty average830

Most prescribed

  1. Triamcinolone Acetonide32 claims
  2. Mometasone Furoate18 claims
  3. Ketoconazole15 claims
  4. Doxycycline Hyclate13 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: $1,303.91

58 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, 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. Isabel Warren$1,303.91
  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. Galen Medical Group, PCChattanooga, TN

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

Isabel Perry Warren among 3,055 physician assistant records in Tennessee

Isabel Perry Warren, PA is one of 3,055 physician assistant records with a practice address in Tennessee. 80% 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 80% of them.

  • NPI issued2024 · 80% of these records are older, 12% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2023 · median 2019 among the 2,030 with a school on file
  • Record last updated2024 · 30% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

150 physician assistant records list a practice address in Chattanooga

They are 150 of the 7,377 NPPES records with a practice address in Chattanooga, and 3,055 physician assistant records in Tennessee.

The 8 physician assistant records with the nearest ZIP codes

  1. Cara Barrett, PA-CChattanooga, TN 374211396179560
  2. Danielle BuckenChattanooga, TN 374211750718383
  3. Susan Daniels, PAChattanooga, TN 374211407998768
  4. Garret Faugot, PA-CChattanooga, TN 374211750561999
  5. Lauren Folkens, PA-CChattanooga, TN 374211821497561
  6. Patricia Geraghty, RPA-CChattanooga, TN 374211457522773
  7. Ryan Gilliand, PA-CChattanooga, TN 374211548348980
  8. Roger Johnson, PAChattanooga, TN 374211053568170

Common questions

What is Isabel Perry Warren, PA's NPI number?

Isabel Perry Warren, PA's National Provider Identifier (NPI) is 1154182228, issued on Jan 17, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Isabel Perry Warren, PA located?

The NPPES record lists a practice address at 1726 Gunbarrel RD Ste 200, Chattanooga, TN, 37421. Phone: (423) 954-9017. Providers update this record themselves, so call before visiting.

How can I verify Isabel Perry Warren, PA's license?

NPPES lists Tennessee license number 5844, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

How much does Isabel Perry Warren, PA prescribe under Medicare Part D?

In 2024, Isabel Perry Warren, PA had 149 Medicare Part D claims for 79 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.