NPPES file of Aug 9, 2026

Peter Michael Harrington, D.C.

Chiropractor · Grass Valley, CA

Peter Michael Harrington, D.C. is a chiropractor with a practice address in Grass Valley, California, and NPI 1750384442, issued on May 27, 2005. Check the license (California 21352, 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
1750384442
Name
Peter Michael Harrington
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
21352 CA
Self-reported in NPPES; status is on the state search
Practice location
132 Joerschke Dr, Grass Valley, CA 95945
Phone
(530) 273-1241
Enumerated
May 27, 2005
Record last updated
May 16, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(530) 274-2178
Medicare enrollment
Enrolled (PECOS I20050527000709); accepts Medicare assignment
Medical or professional school
Palmer College Chiropractic - West Sunnyvale, 1991
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 Peter Michael Harrington 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 21352
    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
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Peter Michael Harrington among 11,498 chiropractor records in California

Peter Michael Harrington, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 97% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated1991 · median 1999 among the 2,907 with a school on file
  • Record last updated2012 · 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).

26 chiropractor records list a practice address in Grass Valley

They are 26 of the 1,540 NPPES records with a practice address in Grass Valley, 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. William Fernandez, D. C.Grass Valley, CA 959451093896672
  2. Pamela Hall, M.A., D.C.Grass Valley, CA 959451023186046
  3. Darwin Leek, D.C.Grass Valley, CA 959451568408110
  4. Kebby Margaretich, D.C.Grass Valley, CA 959451407949118
  5. John Mayfield, DOCTOR OF CHIROPRACTGrass Valley, CA 959451255366381
  6. John Mitchell, DCGrass Valley, CA 959451043371560
  7. Robert Morgan, DCGrass Valley, CA 959451033120829
  8. Wayne Palmer, D.C.Grass Valley, CA 959451457434995

Common questions

What is Peter Michael Harrington, D.C.'s NPI number?

Peter Michael Harrington, D.C.'s National Provider Identifier (NPI) is 1750384442, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Peter Michael Harrington, D.C. located?

The NPPES record lists a practice address at 132 Joerschke Dr, Grass Valley, CA, 95945. Phone: (530) 273-1241. Providers update this record themselves, so call before visiting.

How can I verify Peter Michael Harrington, D.C.'s license?

NPPES lists California license number 21352, 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.