NPPES file of Aug 9, 2026

Charles Gary Simmons, DDS

General Practice Dentistry · Spring, TX

Charles Gary Simmons, DDS is a general practice dentistry with a practice address in Spring, Texas, and NPI 1982628681, issued on Jul 26, 2006. Check the license (Texas 13809, as entered in NPPES) with the Texas 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
1982628681
Name
Charles Gary Simmons
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
13809 TX
Self-reported in NPPES; status is on the state search
Practice location
6605 Cypresswood Dr, Spring, TX 77379
Phone
(281) 370-6600
Enumerated
Jul 26, 2006
Record last updated
Jul 8, 2007 (not updated in 19 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 Charles Gary Simmons in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 13809
    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
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34% fewer Medicare Part D claims than the average general practice dentistry in 2024

55 Medicare Part D claims for 35 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Charles Simmons55
  2. Specialty average83

Most prescribed

  1. Amoxicillin21 claims
  2. Prevident 5000 Dry Mouth12 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.

Charles Gary Simmons among 10,056 general practice dentistry records in Texas

Charles Gary Simmons, DDS is one of 10,056 general practice dentistry records with a practice address in Texas. 64% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 73% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

115 general practice dentistry records list a practice address in Spring

They are 115 of the 3,758 NPPES records with a practice address in Spring, and 10,056 general practice dentistry records in Texas.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Shabbir Boxwalla, D.D.S.Spring, TX 773791982788584
  2. Andrew Doerfler, DDSSpring, TX 773791649382250
  3. Jay Doshi, D.D.S.Spring, TX 773791841379526
  4. Kenneth Ferguson, DMDSpring, TX 773791053488429
  5. John Fischer, DDSSpring, TX 773791871599845
  6. Michael Landry, DDSSpring, TX 773791215948369
  7. Howard Lasher, D.M.D.Spring, TX 773791740285550
  8. Michael Morris, DDSSpring, TX 773791548341522

Common questions

What is Charles Gary Simmons, DDS's NPI number?

Charles Gary Simmons, DDS's National Provider Identifier (NPI) is 1982628681, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles Gary Simmons, DDS located?

The NPPES record lists a practice address at 6605 Cypresswood Dr, Spring, TX, 77379. Phone: (281) 370-6600. Providers update this record themselves, so call before visiting.

How can I verify Charles Gary Simmons, DDS's license?

NPPES lists Texas license number 13809, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Charles Gary Simmons, DDS prescribe under Medicare Part D?

In 2024, Charles Gary Simmons, DDS had 55 Medicare Part D claims for 35 beneficiaries; the average among general practice dentistry prescribers was 83. 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.