NPPES file of Aug 9, 2026

William Glen Grenelle, D.C.

Chiropractor · Largo, FL

William Glen Grenelle, D.C. is a chiropractor with a practice address in Largo, Florida, and NPI 1265885784, issued on Jul 20, 2016. Check the license (Florida CH 11907, as entered in NPPES) on the Florida health license search; 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
1265885784
Name
William Glen Grenelle
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
CH 11907 FL
Self-reported in NPPES; status is on the state search
Practice location
515 Missouri Ave N, Largo, FL 33770
Phone
(727) 587-6667
Enumerated
Jul 20, 2016
Record last updated
Jul 20, 2016 (not updated in 10 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 William Glen Grenelle in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license CH 11907
    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 Florida 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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William Glen Grenelle among 6,967 chiropractor records in Florida

William Glen Grenelle, D.C. is one of 6,967 chiropractor records with a practice address in Florida. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 66% of them.

  • NPI issued2016 · 66% of these records are older, 31% newer
  • In a Medicare fileNo · 16% of these records are
  • In the CMS Doctors and Clinicians fileNo · 32% of these records are
  • Record last updated2016 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

38 chiropractor records list a practice address in Largo

They are 38 of the 2,280 NPPES records with a practice address in Largo, and 6,967 chiropractor records in Florida. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 chiropractor records with the nearest ZIP codes

  1. Christopher AlepaLargo, FL 337701649278383
  2. James Beard, D. C.Largo, FL 337701093721268
  3. Louis Brown, D.C.Largo, FL 337701356425623
  4. Robert Fady, D.C.Belleair Bluffs, FL 337701598895716
  5. Margaret FlorendoBelleair Bluffs, FL 337701801379458
  6. Eric Gorman, DCBelleair Bluffs, FL 337701619581063
  7. Kimberly Horton-Bender, DC, DACBN, CCNBelleair Bluffs, FL 337701932176757
  8. Patrice Lee-Seyon, D.C.Largo, FL 337701861418501

Common questions

What is William Glen Grenelle, D.C.'s NPI number?

William Glen Grenelle, D.C.'s National Provider Identifier (NPI) is 1265885784, issued on Jul 20, 2016. An NPI identifies a provider in billing; it is not a license.

Where is William Glen Grenelle, D.C. located?

The NPPES record lists a practice address at 515 Missouri Ave N, Largo, FL, 33770. Phone: (727) 587-6667. Providers update this record themselves, so call before visiting.

How can I verify William Glen Grenelle, D.C.'s license?

NPPES lists Florida license number CH 11907, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. 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.