Cynthia L. Mattson, LCSW
Clinical Social Worker · Healdsburg, CA
Cynthia L. Mattson, LCSW is a clinical social worker with a practice address in Healdsburg, California, and NPI 1871787523, issued on Sep 5, 2007. Check the license (California LCSW27721, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cynthia L. Mattson
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LCSW27721 CA
Self-reported in NPPES; status is on the state search - Practice location
- 141 North St Ste C, Healdsburg, CA 95448
- Phone
- (707) 535-6835
- Enumerated
- Sep 5, 2007
- Record last updated
- Oct 8, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20131121001268); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 141 North St Ste C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adrienne Heinz, PH.D.Clinical Psychologist1013296433
Verify Cynthia L. Mattson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LCSW27721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Alliance Medical CenterHealdsburg, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cynthia L. Mattson among 36,261 clinical social worker records in California
Cynthia L. Mattson, 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. Its NPI, issued in 2007, is newer than 9% of them.
- NPI issued2007 · 9% of these records are older, 76% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated2004 · median 2012 among the 4,008 with a school on file
- Record last updated2018 · 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).
8 clinical social worker records list a practice address in Healdsburg
They are 8 of the 226 NPPES records with a practice address in Healdsburg, and 36,261 clinical social worker records in California.
All 36,261 in California → Every provider in Healdsburg → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Cory Chechile, LCSWHealdsburg, CA 954481366234437
- Keith Enders, LCSWHealdsburg, CA 954481639576226
- Stacy Fekkers, LCSWHealdsburg, CA 954481629745120
- Jill Frizzell, LCSWHealdsburg, CA 954481033255948
- Kathleen Murphy, L.C.S.W.Healdsburg, CA 954481912214008
- Amy Zenteno, LCSWHealdsburg, CA 954481326565722
- Debrah LyonsGuerneville, CA 954461659426179
- Julie Mawod, LCSWGuerneville, CA 954461346336278
Common questions
What is Cynthia L. Mattson, LCSW's NPI number?
Cynthia L. Mattson, LCSW's National Provider Identifier (NPI) is 1871787523, issued on Sep 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia L. Mattson, LCSW located?
The NPPES record lists a practice address at 141 North St Ste C, Healdsburg, CA, 95448. Phone: (707) 535-6835. Providers update this record themselves, so call before visiting.
How can I verify Cynthia L. Mattson, LCSW's license?
NPPES lists California license number LCSW27721, 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. Medicare files from data.cms.gov. 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.