NPPES file of Aug 9, 2026

Walter Kastler Grant, M.D.

Pediatrics Physician · Biloxi, MS

Walter Kastler Grant, M.D. is a pediatrics physician with a practice address in Biloxi, Mississippi, and NPI 1710092077, issued on Aug 20, 2006. Check the license (Mississippi 14991, 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
1710092077
Name
Walter Kastler Grant
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
14991 MS
29157 AL
Self-reported in NPPES; status is on the state search
Practice location
920 Tommy Munro Dr, Biloxi, MS 39532
Phone
(228) 396-8101
Enumerated
Aug 20, 2006
Record last updated
Apr 6, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(601) 496-8101
Medicaid ID
00116939 MS
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 920 Tommy Munro Dr

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

  1. Kristen Wheelock, NP-CFamily Nurse Practitioner1982978607

Verify Walter Kastler Grant 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 14991
    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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Industry payments in 2024: $378.07

23 payments; by number, the most common kind was food and beverage; the largest payer was Corium, LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Walter Grant$378.07
  2. Specialty average$842.05

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

Walter Kastler Grant among 417 pediatrics physician records in Mississippi

Walter Kastler Grant, M.D. is one of 417 pediatrics physician records with a practice address in Mississippi. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · 11% of these records are
  • Record last updated2018 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in Mississippi

There are 417 pediatrics physician records in Mississippi.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Gerald Bristol, M.D.Biloxi, MS 395321720022122
  2. Elisabeth Haller, MDBiloxi, MS 395321679679864
  3. Richard Schmidt, M.D.Biloxi, MS 395321922330372
  4. Kathryn Sigurnjak, M.D.Biloxi, MS 395321477584308
  5. Joanna Dupont, MDBiloxi, MS 395311639212442
  6. Mitchell Gruich, M.D., F.A.A.P.Biloxi, MS 395311154431351
  7. Gertrude Brundage, M.D.Biloxi, MS 395301487853412
  8. Suzanne Cecconi, M.D., M.P.H.Keesler Afb, MS 395341346299088

Common questions

What is Walter Kastler Grant, M.D.'s NPI number?

Walter Kastler Grant, M.D.'s National Provider Identifier (NPI) is 1710092077, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Walter Kastler Grant, M.D. located?

The NPPES record lists a practice address at 920 Tommy Munro Dr, Biloxi, MS, 39532. Phone: (228) 396-8101. Providers update this record themselves, so call before visiting.

How can I verify Walter Kastler Grant, M.D.'s license?

NPPES lists Mississippi license number 14991, 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.

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.