NPPES file of Aug 9, 2026

Sandra C. Spengler, D.D.S.

Dentist · Las Vegas, NV

Sandra C. Spengler, D.D.S. is a dentist with a practice address in Las Vegas, Nevada, and NPI 1144232976, issued on Aug 12, 2006. Check the license (Nevada 4493, as entered in NPPES) with the Nevada 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
1144232976
Name
Sandra C. Spengler
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License number
4493 NV
Self-reported in NPPES; status is on the state search
Practice location
526 S Tonopah Dr, Las Vegas, NV 89106
Phone
(702) 291-2031
Enumerated
Aug 12, 2006
Record last updated
Jun 15, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(702) 366-1483
Medicaid ID
11444232976 NV
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 526 S Tonopah Dr

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

  1. Rodolfo BarbosaGeneral Practice Dentistry1356583652
  2. Stephanie Castillo-LoezaSchool Social Worker1285111492
  3. Giridhara ChittiveluOrthodontics and Dentofacial Orthopedics Dentistry1902977168
  4. Eve ChungGeneral Practice Dentistry1316289556
  5. Rana Faranesh, DMDGeneral Practice Dentistry1457599037
  6. Shayna GuginoMental Health Counselor1831456136

Verify Sandra C. Spengler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Nevada board licenses this profession
    Search for license 4493
    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 Nevada license search

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26% fewer Medicare Part D claims than the average dentist in 2024

64 Medicare Part D claims for 45 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Sandra Spengler64
  2. Specialty average86

Most prescribed

  1. Amoxicillin23 claims
  2. Ibuprofen18 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.

Sandra C. Spengler among 847 dentist records in Nevada

Sandra C. Spengler, D.D.S. is one of 847 dentist records with a practice address in Nevada. 62% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 81% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2016 · 63% 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 Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

491 dentist records list a practice address in Las Vegas

They are 491 of the 65,269 NPPES records with a practice address in Las Vegas, and 847 dentist records in Nevada.

The 8 dentist records with the nearest ZIP codes

  1. Tanya Al Talib, DDSLas Vegas, NV 891061952475568
  2. Christine Ancajas, DDSLas Vegas, NV 891061639243165
  3. Robert Danforth, DDSLas Vegas, NV 891061730253279
  4. Christina Demopoulos, DDSLas Vegas, NV 891061013082478
  5. Georgia Dounis, DDSLas Vegas, NV 891061346314879
  6. Kenneth Duffie, DDSLas Vegas, NV 891061982778411
  7. Edward Herschaft, DDSLas Vegas, NV 891061760557128
  8. Leslie Karns, DMDLas Vegas, NV 891061366516809

Common questions

What is Sandra C. Spengler, D.D.S.'s NPI number?

Sandra C. Spengler, D.D.S.'s National Provider Identifier (NPI) is 1144232976, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sandra C. Spengler, D.D.S. located?

The NPPES record lists a practice address at 526 S Tonopah Dr, Las Vegas, NV, 89106. Phone: (702) 291-2031. Providers update this record themselves, so call before visiting.

How can I verify Sandra C. Spengler, D.D.S.'s license?

NPPES lists Nevada license number 4493, as entered by the provider. Search the Nevada board that licenses this profession; the NPPES record confirms identity only.

How much does Sandra C. Spengler, D.D.S. prescribe under Medicare Part D?

In 2024, Sandra C. Spengler, D.D.S. had 64 Medicare Part D claims for 45 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.