NPPES file of Aug 9, 2026

David John Sinclair, M.D.

Clinical Neurophysiology Physician · Jackson, MS

David John Sinclair, M.D. is a clinical neurophysiology physician with a practice address in Jackson, Mississippi, and NPI 1235391046, issued on Jul 2, 2008. Check the license (Mississippi 21995, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235391046
Name
David John Sinclair
Credential
M.D.
Primary taxonomy
Clinical Neurophysiology Physician 2084N0600X
License number
21995 MS
Self-reported in NPPES; status is on the state search
Practice location
1225 N State St, Jackson, MS 39202
Phone
(601) 988-5281
Enumerated
Jul 2, 2008
Record last updated
Oct 2, 2025
Fax
(601) 974-6241
Medicaid ID
02102515 MS
Medicare enrollment
Enrolled (PECOS I20121008000610); 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 1225 N State St

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

  1. Abdu Mohamed Abdallah Ahmed, MDFamily Medicine Physician1851824171
  2. Cantrell AndersonPsychiatric/Mental Health Nurse Practitioner1780356212
  3. Anamaria Andrei, M.DAnatomic Pathology & Clinical Pathology Physician1285829200
  4. Jadeline Anyumba-Mitema, MDInternal Medicine Physician1457873812
  5. Brianna Arrington, MDHospitalist Physician1194353391
  6. Anthony Ashmore, MDInternal Medicine Physician1447830237

Verify David John Sinclair 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 21995
    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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89% more Medicare Part D claims than the average clinical neurophysiology physician in 2024

2,997 Medicare Part D claims for 389 beneficiaries, against an average of 1,586 among the 319 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 27 claims were for opioids.

  1. David Sinclair2,997
  2. Specialty average1,586

Most prescribed

  1. Gabapentin280 claims
  2. Propranolol Hcl Er201 claims
  3. Donepezil Hcl187 claims
  4. Memantine Hcl138 claims
  5. Rizatriptan108 claims
  6. Topiramate103 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): 71 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 score56.6
  2. Costout of 100 · 30%58.4
  3. Promoting interoperabilityout of 100 · 25%86.0
  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: $1,494.38

61 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 260 providers of this specialty with any payment received $7,345.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Sinclair$1,494.38
  2. Specialty average$7,345.06

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. Medical Foundation OF Central Mississippi IncJackson, MS
  2. River Oaks Management Company LLCJackson, MS

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

Clinical Neurophysiology Physician providers in Mississippi

There are 2 clinical neurophysiology physician records in Mississippi.

The 1 clinical neurophysiology physician record with the nearest ZIP codes

  1. Michael Graeber, MDJackson, MS 392161558461459

Common questions

What is David John Sinclair, M.D.'s NPI number?

David John Sinclair, M.D.'s National Provider Identifier (NPI) is 1235391046, issued on Jul 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is David John Sinclair, M.D. located?

The NPPES record lists a practice address at 1225 N State St, Jackson, MS, 39202. Phone: (601) 988-5281. Providers update this record themselves, so call before visiting.

How can I verify David John Sinclair, M.D.'s license?

NPPES lists Mississippi license number 21995, 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 David John Sinclair, M.D. prescribe under Medicare Part D?

In 2024, David John Sinclair, M.D. had 2,997 Medicare Part D claims for 389 beneficiaries; the average among clinical neurophysiology physician prescribers was 1,586. Part D covers Medicare prescriptions only.

What is David John Sinclair, M.D.'s MIPS final score?

The 2023 MIPS final score is 71 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.