NPPES file of Aug 9, 2026

Forest Arnold, DO

Infectious Disease Physician · Louisville, KY

Forest Arnold, DO is an infectious disease physician with a practice address in Louisville, Kentucky, and NPI 1134119472, issued on Oct 27, 2005. Check the license (Kentucky 02698, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134119472
Name
Forest Arnold
Credential
DO
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
02698 KY
Self-reported in NPPES; status is on the state search
Practice location
201 Abraham Flexner Way, Louisville, KY 40202
Phone
(502) 852-5131
Enumerated
Oct 27, 2005
Record last updated
Jul 13, 2026
Fax
(502) 589-5093
Medicaid ID
64071178 KY
Medicare enrollment
Enrolled (PECOS I20040601001385); accepts Medicare assignment
Medical or professional school
West Virginia School Of Osteopathic Medicine, 1997
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 201 Abraham Flexner Way

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

  1. Syed Abbas, MDInternal Medicine Physician1285081398
  2. Suresh Alankar, MDVascular Surgery Physician1669404265
  3. Abdulmajeed Aljuhiman, MDCardiovascular Disease Physician1730735556
  4. Sawsan Almasri, PAPhysician Assistant1235896572
  5. Erle Austin, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1710926290
  6. Ellen Bischoff, NPAcute Care Nurse Practitioner1942789532

Verify Forest Arnold in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 02698
    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
Open the Kentucky 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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17% more Medicare Part D claims than the average infectious disease physician in 2024

806 Medicare Part D claims for 242 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.

  1. Forest Arnold806
  2. Specialty average689

Most prescribed

  1. Azithromycin191 claims
  2. Biktarvy116 claims
  3. Atovaquone-Proguanil Hcl89 claims
  4. Tivicay55 claims
  5. Triumeq44 claims
  6. Symtuza39 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 73.2 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 score58.7
  2. Costout of 100 · 30%51.9
  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).

Industry payments in 2024: $762.22

36 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Forest Arnold$762.22
  2. Specialty average$4,362.19

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

Bills Medicare through 2 group practices

  1. University OF Louisville Physicians IncLouisville, KY
  2. University OF Louisville Research Foundation IncLouisville, KY

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

Forest Arnold among 111 infectious disease physician records in Kentucky

Forest Arnold, DO is one of 111 infectious disease physician records with a practice address in Kentucky. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1997 · median 2004 among the 81 with a school on file
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Kentucky

There are 111 infectious disease physician records in Kentucky.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Kamran Akhtar, MDLouisville, KY 402021669486346
  2. Merilda Blanco-Guzman, MDLouisville, KY 402021962684993
  3. Mark Burns, M.D.Louisville, KY 402021184731325
  4. Rose Devasia, MD,MPHLouisville, KY 402021992852859
  5. Allen Griffin, M.D.Louisville, KY 402021659413136
  6. Syed Husnain, MDLouisville, KY 402021164641874
  7. Rama Kapoor, M.DLouisville, KY 402021588610034
  8. Tariq Mehmood, MDLouisville, KY 402021134239619

Common questions

What is Forest Arnold, DO's NPI number?

Forest Arnold, DO's National Provider Identifier (NPI) is 1134119472, issued on Oct 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Forest Arnold, DO located?

The NPPES record lists a practice address at 201 Abraham Flexner Way, Louisville, KY, 40202. Phone: (502) 852-5131. Providers update this record themselves, so call before visiting.

How can I verify Forest Arnold, DO's license?

NPPES lists Kentucky license number 02698, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Forest Arnold, DO prescribe under Medicare Part D?

In 2024, Forest Arnold, DO had 806 Medicare Part D claims for 242 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is Forest Arnold, DO's MIPS final score?

The 2023 MIPS final score is 73.2 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.