NPPES file of Aug 9, 2026

Zackary Atom Charles Knott, MD

Internal Medicine Physician · Jackson, MS

Zackary Atom Charles Knott, MD is an internal medicine physician with a practice address in Jackson, Mississippi, and NPI 1245691161, issued on Mar 20, 2016. Check the license (Mississippi 25610, 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
1245691161
Name
Zackary Atom Charles Knott
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
25610 MS
Self-reported in NPPES; status is on the state search
Practice location
2500 N State St, Jackson, MS 39216
Phone
(601) 984-5532
Enumerated
Mar 20, 2016
Record last updated
Aug 21, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(601) 984-6665
Medicare enrollment
Enrolled (PECOS I20200615001246); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In Shreveport, 2016
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 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 Zackary Atom Charles Knott 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 25610
    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

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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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

213 Medicare Part D claims for 64 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Zackary Knott213
  2. Specialty average3,176

Most prescribed

  1. Pantoprazole Sodium12 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): 69.8 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 score56.1
  2. Costout of 100 · 30%48.3
  3. Promoting interoperabilityout of 100 · 25%83.0
  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: $102.20

6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Zackary Knott$102.20
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. State OF Mississippi-University OF Mississippi Medical CenterJackson, MS

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

Zackary Atom Charles Knott among 972 internal medicine physician records in Mississippi

Zackary Atom Charles Knott, MD is one of 972 internal medicine physician records with a practice address in Mississippi. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 60% of them.

  • NPI issued2016 · 60% of these records are older, 38% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2016 · median 2008 among the 585 with a school on file
  • Record last updated2020 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

328 internal medicine physician records list a practice address in Jackson

They are 328 of the 6,997 NPPES records with a practice address in Jackson, and 972 internal medicine physician records in Mississippi.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mark Enderle, MDJackson, MS 392161477598522
  2. Barbara Fedor, MDJackson, MS 392161366472896
  3. James Glisson, M.D.Jackson, MS 392161245274281
  4. Jo Harbour, MDJackson, MS 392161609809771
  5. Denise Harkins, MDJackson, MS 392161124094453
  6. Richard Jackson, M.D.Jackson, MS 392161134153687
  7. Harriet Jones, M.DJackson, MS 392161184672750
  8. Robert Lynch, M.D.Jackson, MS 392161780614339

Common questions

What is Zackary Atom Charles Knott, MD's NPI number?

Zackary Atom Charles Knott, MD's National Provider Identifier (NPI) is 1245691161, issued on Mar 20, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Zackary Atom Charles Knott, MD located?

The NPPES record lists a practice address at 2500 N State St, Jackson, MS, 39216. Phone: (601) 984-5532. Providers update this record themselves, so call before visiting.

How can I verify Zackary Atom Charles Knott, MD's license?

NPPES lists Mississippi license number 25610, 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 Zackary Atom Charles Knott, MD prescribe under Medicare Part D?

In 2024, Zackary Atom Charles Knott, MD had 213 Medicare Part D claims for 64 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Zackary Atom Charles Knott, MD's MIPS final score?

The 2023 MIPS final score is 69.8 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.