CYNTHIA L MATTSON LCSW
NPI 1871787523
Social Worker - Clinical in Healdsburg, CA
About Cynthia L Mattson Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CYNTHIA L MATTSON LCSW (NPI 1871787523) is an individual clinical provider in Healdsburg, California, licensed in California (LCSW27721) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Cynthia L Mattson Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Cynthia Mattson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Healdsburg, CA 95448
- Reassigned Medicare billing, California enrollment
- 49 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95448 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Cynthia Mattson's NPI number?
The NPI number for Cynthia Mattson is 1871787523. It was assigned to this individual provider in the NPPES registry on September 5, 2007.
Where is Cynthia Mattson located?
Cynthia Mattson practices at 141 North St Ste C, Healdsburg, CA 95448. The listed phone number is (707) 535-6835.
What is Cynthia Mattson's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Cynthia Mattson enrolled in Medicare?
Yes. Cynthia Mattson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Cynthia Mattson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Mattson reassigns Medicare benefits to Alliance Medical Center (Healdsburg, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cynthia Mattson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Cynthia Mattson was last updated on October 8, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Cynthia L Mattson, LCSW · NPI 1871787523
Clinical provider in Healdsburg, California. Individual provider, active in the CMS NPPES registry since September 5, 2007.
## Identity
- **NPI:** 1871787523 (Entity type: Individual)
- **Enumerated:** September 5, 2007
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** LCSW27721 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 141 NORTH ST STE C, Healdsburg, CA 95448-3821
- **Phone:** (707) 535-6835
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Alliance Medical Center (NPI 1588497168, Healdsburg, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** October 8, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1871787523) · Data from the CMS NPPES public registry.