NPPES file of Aug 9, 2026

John Guatelli, M.D.

Specialist · La Jolla, CA

John Guatelli, M.D. is a specialist with a practice address in La Jolla, California, and NPI 1245345693, issued on Aug 19, 2006. Check the license (California G58874, as entered in NPPES) with the California board that licenses this profession; 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
1245345693
Name
John Guatelli
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G58874 CA
Self-reported in NPPES; status is on the state search
Practice location
9500 Gilman Dr, La Jolla, CA 92093
Phone
(858) 552-8585
Enumerated
Aug 19, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(858) 552-7445
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 specialist records → All 5,749 in California → Look up another NPI →

Also registered at 9500 Gilman Dr

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

  1. Mickey Abraham, MD, MSStudent in an Organized Health Care Education/Training Program1609403732
  2. Angela Acfalle, NP CNSAdult Health Nurse Practitioner1013983857
  3. Kelley Adams, M.D.Psychiatry Physician1215039771
  4. Aaron AhdootStudent in an Organized Health Care Education/Training Program1558217901
  5. Grace AhnStudent in an Organized Health Care Education/Training Program1295317816
  6. Ginger Armas, PHDCounselor1396125035

Verify John Guatelli 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 G58874    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

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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John Guatelli among 5,749 specialist records in California

John Guatelli, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileNo · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2007 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 5,749 in California → Every provider in La Jolla → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Alice Davis Winkel, ATCLa Jolla, CA 920931174863526
  2. Ali Eslami, MD. PHD.La Jolla, CA 920931205971033
  3. Patrick Yang, MDLa Jolla, CA 920931902357486
  4. Victoria Barrera, H.H.P., M.S.San Diego, CA 921011023206299
  5. Roger Crenshaw, M.D.San Diego, CA 921011811290257
  6. Huy Ho, M.D.San Diego, CA 921011750370458
  7. Christina Johnson, L.E.San Diego, CA 921011124801105
  8. Brian McCuneSan Diego, CA 921011083424956

Common questions

What is John Guatelli, M.D.'s NPI number?

John Guatelli, M.D.'s National Provider Identifier (NPI) is 1245345693, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Guatelli, M.D. located?

The NPPES record lists a practice address at 9500 Gilman Dr, La Jolla, CA, 92093. Phone: (858) 552-8585. Providers update this record themselves, so call before visiting.

How can I verify John Guatelli, M.D.'s license?

NPPES lists California license number G58874, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.