NPPES file of Aug 9, 2026

Ryan Wayne Chapman, MD

Neurology Physician · Jackson, MS

Ryan Wayne Chapman, MD is a neurology physician with a practice address in Jackson, Mississippi, and NPI 1427637610, issued on Apr 5, 2021. Check the license (Mississippi T4495, as entered in NPPES) on the Mississippi State Board of Medical Licensure; 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
1427637610
Name
Ryan Wayne Chapman
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
T4495 MS
Self-reported in NPPES; status is on the state search
Practice location
2500 N State St, Jackson, MS 39216
Phone
(601) 984-5500
Enumerated
Apr 5, 2021
Record last updated
Sep 3, 2025
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 2500 N State St

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

  1. Noah Abbas, M.D.Emergency Medicine Physician1982991246
  2. Syed Abbas, MDAnatomic Pathology & Clinical Pathology Physician1407378961
  3. Rania AbdoStudent in an Organized Health Care Education/Training Program1255168787
  4. John AbernathyInternal Medicine Physician1700670650
  5. Jordan Abney, MDEmergency Medicine Physician1275238214
  6. Hassan Abou AdmaStudent in an Organized Health Care Education/Training Program1811826688

Verify Ryan Wayne Chapman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
    Search for license T4495
    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 Mississippi license search

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88% fewer Medicare Part D claims than the average neurology physician in 2024

160 Medicare Part D claims for 40 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Ryan Chapman160
  2. Specialty average1,370

Most prescribed

  1. Atorvastatin Calcium24 claims
  2. Levetiracetam15 claims
  3. Ropinirole Hcl12 claims
  4. Gabapentin11 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: $439.93

6 payments; by number, the most common kind was food and beverage; the largest payer was Penumbra, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ryan Chapman$439.93
  2. Specialty average$8,318.07

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

Neurology Physician providers in Mississippi

There are 116 neurology physician records in Mississippi.

Other neurology physician records in Mississippi

  1. Ali Ahmad, M.D.Tupelo, MS1427583293
  2. Mohammad Ahmed, M.D.Vicksburg, MS1861458762
  3. Vilakshan Alambyan, MDJackson, MS1437643004
  4. Emad Alghazo, MDTupelo, MS1174186662
  5. Yanis Amrani, MDJackson, MS1144882473
  6. Mark Anderson, MDJackson, MS1922202415
  7. Craig Berteau, M.D.Brookhaven, MS1518130392
  8. Debashis Biswas, M.D.Southaven, MS1831144039
  9. Bertha Blanchard, MDHattiesburg, MS1043274616
  10. Susan Boston, M.D.Biloxi, MS1881602100

Common questions

What is Ryan Wayne Chapman, MD's NPI number?

Ryan Wayne Chapman, MD's National Provider Identifier (NPI) is 1427637610, issued on Apr 5, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Ryan Wayne Chapman, MD located?

The NPPES record lists a practice address at 2500 N State St, Jackson, MS, 39216. Phone: (601) 984-5500. Providers update this record themselves, so call before visiting.

How can I verify Ryan Wayne Chapman, MD's license?

NPPES lists Mississippi license number T4495, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ryan Wayne Chapman, MD prescribe under Medicare Part D?

In 2024, Ryan Wayne Chapman, MD had 160 Medicare Part D claims for 40 beneficiaries; the average among neurology physician prescribers was 1,370. 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.