Marianne Nielsen, DC
Chiropractor · Los Gatos, CA
Marianne Nielsen, DC is a chiropractor with a practice address in Los Gatos, California, and NPI 1437350949, issued on May 30, 2007. Check the license (California 22103, 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.
- Name
- Marianne Nielsen
- Credential
- DC
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- 22103 CA
Self-reported in NPPES; status is on the state search - Practice location
- 321 Los Gatos Saratoga RD, Los Gatos, CA 95030
- Phone
- (408) 268-7268
- Enumerated
- May 30, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141023002597); may accept Medicare assignment
- Medical or professional school
- Palmer College Chiropractic - West Sunnyvale, 1991
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 11,498 in California → Look up another NPI →
Also registered at 321 Los Gatos Saratoga RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anne OstisAcupuncturist1891113478
Verify Marianne Nielsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 22103Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Marianne Nielsen among 11,498 chiropractor records in California
Marianne Nielsen, DC 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 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 45% 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 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).
56 chiropractor records list a practice address in Los Gatos
They are 56 of the 1,905 NPPES records with a practice address in Los Gatos, and 11,498 chiropractor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 11,498 in California → Every provider in Los Gatos → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Caeylin Ace, D.C.Los Gatos, CA 950301497079503
- Thomas Bloink, D.C.Los Gatos, CA 950301962793455
- Sarah Bracamontes, D.C.Los Gatos, CA 950301386695203
- Kristi Clay, DCLos Gatos, CA 950301073735650
- Lisa De La Torre, D.C.Los Gatos, CA 950301912997610
- Adam Kleinberg, DCLos Gatos, CA 950301487905824
- Derek Ko, D.CLos Gatos, CA 950301548647621
- Wade Malesich, D.C., LMTLos Gatos, CA 950301881918118
Common questions
What is Marianne Nielsen, DC's NPI number?
Marianne Nielsen, DC's National Provider Identifier (NPI) is 1437350949, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marianne Nielsen, DC located?
The NPPES record lists a practice address at 321 Los Gatos Saratoga RD, Los Gatos, CA, 95030. Phone: (408) 268-7268. Providers update this record themselves, so call before visiting.
How can I verify Marianne Nielsen, DC's license?
NPPES lists California license number 22103, 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.