Shirley Nichols Siebert, L.AC.
Acupuncturist · San Mateo, CA
Shirley Nichols Siebert, L.AC. is an acupuncturist with a practice address in San Mateo, California, and NPI 1396076840, issued on Jan 22, 2010. Check the license (California AC4159, 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
- Shirley Nichols Siebert
- Credential
- L.AC.
- Primary taxonomy
- Acupuncturist 171100000X
- License number
- AC4159 CA
Self-reported in NPPES; status is on the state search - Practice location
- 137 N San Mateo Dr, San Mateo, CA 94401
- Phone
- (650) 342-1998
- Enumerated
- Jan 22, 2010
- Record last updated
- Jan 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest acupuncturist records → All 10,648 in California → Look up another NPI →
Verify Shirley Nichols Siebert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license AC4159Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Shirley Nichols Siebert among 10,648 acupuncturist records in California
Shirley Nichols Siebert, L.AC. is one of 10,648 acupuncturist records with a practice address in California. under 1% 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 2010, is newer than 40% of them.
- NPI issued2010 · 40% of these records are older, 55% newer
- In a Medicare fileNo · under 1% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2010 · 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 171100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 acupuncturist records list a practice address in San Mateo
They are 54 of the 3,909 NPPES records with a practice address in San Mateo, and 10,648 acupuncturist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 10,648 in California → Every provider in San Mateo → Acupuncturist nationwide →
The 8 acupuncturist records with the nearest ZIP codes
- Kimberly Burke, L.AC, OMDSan Mateo, CA 944011821325952
- Jack Chang, L.AC. MSSan Mateo, CA 944011699917021
- William Chen, LACSan Mateo, CA 944011417013939
- Therese Hui, LACSan Mateo, CA 944011891811881
- Jenn Keys, L.AC.San Mateo, CA 944011639245426
- Stephanie Lacarrubba, LAC RNSan Mateo, CA 944011497888036
- Sue Lin, L.AC.San Mateo, CA 944011013083864
- Matthew Sheu, L. ACSan Mateo, CA 944011740352939
Common questions
What is Shirley Nichols Siebert, L.AC.'s NPI number?
Shirley Nichols Siebert, L.AC.'s National Provider Identifier (NPI) is 1396076840, issued on Jan 22, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Shirley Nichols Siebert, L.AC. located?
The NPPES record lists a practice address at 137 N San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 342-1998. Providers update this record themselves, so call before visiting.
How can I verify Shirley Nichols Siebert, L.AC.'s license?
NPPES lists California license number AC4159, 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.