NPPES file of Aug 9, 2026

Cassy Smith Simpson, D.M.D.

Dentist · Natchez, MS

Cassy Smith Simpson, D.M.D. is a dentist with a practice address in Natchez, Mississippi, and NPI 1164728085, issued on Feb 10, 2011. Check the license (Mississippi 3519-09, as entered in NPPES) with the Mississippi board that licenses this profession; 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
1164728085
Name
Cassy Smith Simpson
Credential
D.M.D.
Primary taxonomy
Dentist 122300000X
License number
3519-09 MS
Self-reported in NPPES; status is on the state search
Practice location
407 Franklin St, Natchez, MS 39120
Phone
(601) 443-7893
Enumerated
Feb 10, 2011
Record last updated
Nov 13, 2013 (not updated in 13 years: call before relying on the address or phone)
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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Verify Cassy Smith Simpson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
    Search for license 3519-09
    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
Find the Mississippi license search

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2.6 times the Medicare Part D claims of the average dentist in 2024

221 Medicare Part D claims for 119 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. 17 claims were for opioids.

  1. Cassy Simpson221
  2. Specialty average86

Most prescribed

  1. Amoxicillin81 claims
  2. Clindamycin Hcl22 claims
  3. Triamcinolone Acetonide18 claims
  4. Ibuprofen16 claims
  5. Cephalexin12 claims
  6. Hydrocodone-Acetaminophen11 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: $107.54

4 payments; by number, the most common kind was food and beverage; the largest payer was Zimvie Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Cassy Simpson$107.54
  2. Specialty average$540.36

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

Cassy Smith Simpson among 536 dentist records in Mississippi

Cassy Smith Simpson, D.M.D. is one of 536 dentist records with a practice address in Mississippi. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 58% of them.

  • NPI issued2011 · 58% of these records are older, 40% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2013 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 dentist records list a practice address in Natchez

They are 8 of the 321 NPPES records with a practice address in Natchez, and 536 dentist records in Mississippi.

The 8 dentist records with the nearest ZIP codes

  1. Carmen Adcock, D.M.D.Natchez, MS 391201821252297
  2. Lee Campbell, DDSNatchez, MS 391201861420820
  3. Jacob Fleig, DDSNatchez, MS 391201700290483
  4. Amber HarriedNatchez, MS 391201275263634
  5. Joseph-Charles Mardini, D.D.S.Natchez, MS 391201245613439
  6. Robert Prospere, DMDNatchez, MS 391201679781389
  7. Edward Gaudet, DDSNatchez, MS 391211184732679
  8. Mary Blossom, DMDMorton, MS 391171477991552

Common questions

What is Cassy Smith Simpson, D.M.D.'s NPI number?

Cassy Smith Simpson, D.M.D.'s National Provider Identifier (NPI) is 1164728085, issued on Feb 10, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Cassy Smith Simpson, D.M.D. located?

The NPPES record lists a practice address at 407 Franklin St, Natchez, MS, 39120. Phone: (601) 443-7893. Providers update this record themselves, so call before visiting.

How can I verify Cassy Smith Simpson, D.M.D.'s license?

NPPES lists Mississippi license number 3519-09, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity only.

How much does Cassy Smith Simpson, D.M.D. prescribe under Medicare Part D?

In 2024, Cassy Smith Simpson, D.M.D. had 221 Medicare Part D claims for 119 beneficiaries; the average among dentist prescribers was 86. 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.