NPPES file of Aug 9, 2026

Eric J. Grenda, D.C.

Chiropractor · Torrance, CA

Eric J. Grenda, D.C. is a chiropractor with a practice address in Torrance, California, and NPI 1639115736, issued on Jun 20, 2006. Check the license (California DC23471, 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
1639115736
Name
Eric J. Grenda
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
DC23471 CA
Self-reported in NPPES; status is on the state search
Practice location
3640 Lomita Blvd, Torrance, CA 90505
Phone
(310) 373-8595
Enumerated
Jun 20, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(310) 373-5356
Medicare enrollment
Enrolled (PECOS I20070710000830); accepts Medicare assignment
Medical or professional school
Palmer College Chiropractic - West Sunnyvale, 1992
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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Also registered at 3640 Lomita Blvd

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

  1. Ralph Allman, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1790998904
  2. Jerry Clement, D.D.S.Dentist1841464971
  3. Zinaida Furman, M.D.Specialist1811044712
  4. Issac Huang, DDSGeneral Practice Dentistry1811084619
  5. Gwenet Lambert, D.D.S.General Practice Dentistry1326251562
  6. Judy Law-Torok, M.D.Gastroenterology Physician1629134770

Verify Eric J. Grenda 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 DC23471
    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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Eric J. Grenda among 11,498 chiropractor records in California

Eric J. Grenda, 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 not. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated1992 · median 1999 among the 2,907 with a school on file
  • 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 111N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

93 chiropractor records list a practice address in Torrance

They are 93 of the 8,901 NPPES records with a practice address in Torrance, and 11,498 chiropractor records in California. 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. Domenic Didomenicantonio, DCTorrance, CA 905051760587364
  2. Linda Ding, D.C., L. AC.Torrance, CA 905051316019250
  3. Mark Garrison, DCTorrance, CA 905051740233949
  4. Nicholas Loloee, D.C.Torrance, CA 905051801888391
  5. Andrew Morris, D.C.Torrance, CA 905051902808926
  6. Alan Pan, DCTorrance, CA 905051740383363
  7. Rodrigo Pina, D.C.Torrance, CA 905051417038787
  8. Rodney Ruge, DCTorrance, CA 905051164414108

Common questions

What is Eric J. Grenda, D.C.'s NPI number?

Eric J. Grenda, D.C.'s National Provider Identifier (NPI) is 1639115736, issued on Jun 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Eric J. Grenda, D.C. located?

The NPPES record lists a practice address at 3640 Lomita Blvd, Torrance, CA, 90505. Phone: (310) 373-8595. Providers update this record themselves, so call before visiting.

How can I verify Eric J. Grenda, D.C.'s license?

NPPES lists California license number DC23471, 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.

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.