NPPES file of Aug 9, 2026

Marilyn Siegel Boettiger, LCSW

Clinical Social Worker · Irvine, CA

Marilyn Siegel Boettiger, LCSW is a clinical social worker with a practice address in Irvine, California, and NPI 1992871651, issued on Nov 27, 2006. Check the license (California LCS8176, 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
1992871651
Name
Marilyn Siegel Boettiger
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LCS8176 CA
Self-reported in NPPES; status is on the state search
Practice location
13 Hawkridge, Irvine, CA 92604
Phone
(949) 552-8737
Enumerated
Nov 27, 2006
Record last updated
May 10, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(949) 654-2402
Medicaid ID
CSW081760 CA
Medicare enrollment
Enrolled (PECOS I20100720000916); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 Marilyn Siegel Boettiger 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 LCS8176
    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

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Marilyn Siegel Boettiger among 36,261 clinical social worker records in California

Marilyn Siegel Boettiger, LCSW is one of 36,261 clinical social worker records with a practice address in California. 6% 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 under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 91% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated1978 · median 2012 among the 4,008 with a school on file
  • Record last updated2010 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

144 clinical social worker records list a practice address in Irvine

They are 144 of the 7,778 NPPES records with a practice address in Irvine, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Melissa Essman, LCSWIrvine, CA 926041730435223
  2. Jill Gravois, LCSWIrvine, CA 926041053540575
  3. Tina James, LCSWIrvine, CA 926041528242039
  4. Jessica KeyoumarsiIrvine, CA 926041710410451
  5. Lila Khalili, LCSWIrvine, CA 926041609815455
  6. Stacy NakamuraIrvine, CA 926041346428224
  7. Cynthia Peikoff, LCSWIrvine, CA 926041073703021
  8. Leanne Pleasant, LCSWIrvine, CA 926041518175389

Common questions

What is Marilyn Siegel Boettiger, LCSW's NPI number?

Marilyn Siegel Boettiger, LCSW's National Provider Identifier (NPI) is 1992871651, issued on Nov 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marilyn Siegel Boettiger, LCSW located?

The NPPES record lists a practice address at 13 Hawkridge, Irvine, CA, 92604. Phone: (949) 552-8737. Providers update this record themselves, so call before visiting.

How can I verify Marilyn Siegel Boettiger, LCSW's license?

NPPES lists California license number LCS8176, 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.