NPPES file of Aug 9, 2026

Garrett Michael Guess, D.D.S.

Endodontics · La Jolla, CA

Garrett Michael Guess, D.D.S. is an endodontics with a practice address in La Jolla, California, and NPI 1871690776, issued on Sep 20, 2006. Check the license (California 47724, as entered in NPPES) with the California 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
1871690776
Name
Garrett Michael Guess
Credential
D.D.S.
Primary taxonomy
Endodontics 1223E0200X
License number
47724 CA
Self-reported in NPPES; status is on the state search
Practice location
8950 Villa LA Jolla Dr Ste C113, La Jolla, CA 92037
Phone
(858) 558-0222
Enumerated
Sep 20, 2006
Record last updated
Sep 24, 2025
Fax
(858) 558-0903
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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8 nearest endodontics records → All 1,018 in California → Look up another NPI →

Also registered at 8950 Villa LA Jolla Dr Ste C113

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

  1. Nonie Levi, MFTMarriage & Family Therapist1700984028
  2. Nina Stark, LCSW,BCDMental Health Counselor1861642100

Verify Garrett Michael Guess in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 47724    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 California license search

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34% fewer Medicare Part D claims than the average endodontics in 2024

80 Medicare Part D claims for 51 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Garrett Guess80
  2. Specialty average121

Most prescribed

  1. Chlorhexidine Gluconate48 claims
  2. Amoxicillin19 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.

Garrett Michael Guess among 1,018 endodontics records in California

Garrett Michael Guess, D.D.S. is one of 1,018 endodontics records with a practice address in California. 68% 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, 73% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2025 · 78% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endodontics providers in California

There are 1,018 endodontics records in California.

All 1,018 in California → Every provider in La Jolla → Endodontics nationwide →

The 8 endodontics records with the nearest ZIP codes

  1. Jeffrey Javelet, DDSLa Jolla, CA 920371861589657
  2. Michael Sherman, DMDLa Jolla, CA 920371760527972
  3. Babak Shoushtari, D.M.D.La Jolla, CA 920371841301728
  4. Katherine Thomson, D.D.S.La Jolla, CA 920371003171273
  5. John Masters, D.D.S., M.S.Julian, CA 920361194908988
  6. Jan Lacombe, D.M.D.Escondido, CA 920261275754996
  7. David Brunson, D.D.S.Escondido, CA 920251801973417
  8. Robert Hanlon, DMDEscondido, CA 920251194892380

Common questions

What is Garrett Michael Guess, D.D.S.'s NPI number?

Garrett Michael Guess, D.D.S.'s National Provider Identifier (NPI) is 1871690776, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Garrett Michael Guess, D.D.S. located?

The NPPES record lists a practice address at 8950 Villa LA Jolla Dr Ste C113, La Jolla, CA, 92037. Phone: (858) 558-0222. Providers update this record themselves, so call before visiting.

How can I verify Garrett Michael Guess, D.D.S.'s license?

NPPES lists California license number 47724, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Garrett Michael Guess, D.D.S. prescribe under Medicare Part D?

In 2024, Garrett Michael Guess, D.D.S. had 80 Medicare Part D claims for 51 beneficiaries; the average among endodontics prescribers was 121. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.