NPPES file of Aug 9, 2026

Gregory Allen Smith, D.C.

Chiropractor · Los Banos, CA

Gregory Allen Smith, D.C. is a chiropractor with a practice address in Los Banos, California, and NPI 1588643142, issued on Jan 12, 2006. Check the license (California 12059, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588643142
Name
Gregory Allen Smith
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
12059 CA
Self-reported in NPPES; status is on the state search
Practice location
912 I St, Los Banos, CA 93635
Phone
(209) 826-5865
Enumerated
Jan 12, 2006
Record last updated
May 10, 2024
Fax
(209) 826-1571
Medicare enrollment
Enrolled (PECOS I20101026000544); accepts Medicare assignment
Medical or professional school
Cleveland Chiropractic College - Los Angeles, 1977
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Gregory Allen Smith 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 12059
    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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Bills Medicare through one group practice

  1. Karthikeya Devireddy MD IncLos Banos, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregory Allen Smith among 11,498 chiropractor records in California

Gregory Allen Smith, D.C. is one of 11,498 chiropractor records with a practice address in California. 7% 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, 65% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated1977 · median 1999 among the 2,907 with a school on file
  • Record last updated2024 · 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 111N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 chiropractor records list a practice address in Los Banos

They are 4 of the 441 NPPES records with a practice address in Los Banos, and 11,498 chiropractor records in California.

The 8 chiropractor records with the nearest ZIP codes

  1. Charles Calcagno, D.C.Los Banos, CA 936351366517195
  2. Thomas Keller, D.CLos Banos, CA 936351265718316
  3. Anthony Parolise, D.C.Los Banos, CA 936351962587907
  4. Brent Gong, D.C.Madera, CA 936371912054255
  5. David Grootendorst, DCMadera, CA 936371225118177
  6. John Grootendorst, DCMadera, CA 936371780765073
  7. Keith Olsen, D.C.Madera, CA 936371093856775
  8. Mark Simons, D.C.Madera, CA 936371285773770

Common questions

What is Gregory Allen Smith, D.C.'s NPI number?

Gregory Allen Smith, D.C.'s National Provider Identifier (NPI) is 1588643142, issued on Jan 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Allen Smith, D.C. located?

The NPPES record lists a practice address at 912 I St, Los Banos, CA, 93635. Phone: (209) 826-5865. Providers update this record themselves, so call before visiting.

How can I verify Gregory Allen Smith, D.C.'s license?

NPPES lists California license number 12059, 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. 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.