NPPES file of Aug 9, 2026

Marek Janusz Grzeszczak, M.D.

Pediatric Critical Care Medicine Physician · Jackson, TN

Marek Janusz Grzeszczak, M.D. is a pediatric critical care medicine physician with a practice address in Jackson, Tennessee, and NPI 1659455053, issued on Oct 24, 2006. Check the license (Tennessee 31435, as entered in NPPES) on the Tennessee Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659455053
Name
Marek Janusz Grzeszczak
Credential
M.D.
Primary taxonomy
Pediatric Critical Care Medicine Physician 2080P0203X
License number
31435 TN
Self-reported in NPPES; status is on the state search
Practice location
708 W Forest Ave, Jackson, TN 38301
Phone
(731) 660-8759
Enumerated
Oct 24, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(731) 660-8739
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 708 W Forest Ave

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

  1. Mary Adams, NPNurse Practitioner1346288503
  2. Jonathan Anderson, CRNACertified Registered Nurse Anesthetist1477619724
  3. Daisy Antique, MDInternal Medicine Physician1447227939
  4. Linda BeauregardPsychiatric/Mental Health Nurse Practitioner1447921192
  5. Kelly Blair, PH.DClinical Psychologist1891711131
  6. Mark Burton, MDAnatomic Pathology & Clinical Pathology Physician1538136130

Verify Marek Janusz Grzeszczak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 31435
    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 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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Pediatric Critical Care Medicine Physician providers in Tennessee

There are 77 pediatric critical care medicine physician records in Tennessee. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other pediatric critical care medicine physician records in Tennessee

  1. Asya Agulnik, MDMemphis, TN1639494040
  2. Anita Arias Prado, M.D.Memphis, TN1033538400
  3. Ariella Barhen, M.D.Knoxville, TN1942695333
  4. Tyler Berutti, MDNashville, TN1275680126
  5. Kristina Betters, MDNashville, TN1578852182
  6. Katharine BoyleNashville, TN1508132689
  7. Kevin Brinkmann, M.D.Knoxville, TN1295771772
  8. Mark Bugnitz, MDMemphis, TN1023075249
  9. Janelle Buysse, D.O.Nashville, TN1801245451
  10. Kathleen Cao, MDMemphis, TN1710448469

Common questions

What is Marek Janusz Grzeszczak, M.D.'s NPI number?

Marek Janusz Grzeszczak, M.D.'s National Provider Identifier (NPI) is 1659455053, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marek Janusz Grzeszczak, M.D. located?

The NPPES record lists a practice address at 708 W Forest Ave, Jackson, TN, 38301. Phone: (731) 660-8759. Providers update this record themselves, so call before visiting.

How can I verify Marek Janusz Grzeszczak, M.D.'s license?

NPPES lists Tennessee license number 31435, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.