MR. MARK LOUIS DUARTE MSW, LCSW
NPI 1679814552
Social Worker - Clinical in Madera, CA
About Mr. Mark Louis Duarte Msw, Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARK LOUIS DUARTE MSW, LCSW (NPI 1679814552) is an individual clinical provider in Madera, California, licensed in California (LCSW 8636) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS and is a graduate of Other (1979).
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
Mr. Mark Louis Duarte Msw, 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 Mark Duarte reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Santa Clara, CA 95054
- Reassigned Medicare billing, California enrollment
- 1,607 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 93638 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MADERA, CA 93638
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 Mark Duarte's NPI number?
The NPI number for Mark Duarte is 1679814552. It was assigned to this individual provider in the NPPES registry on March 2, 2013.
Where is Mark Duarte located?
Mark Duarte practices at 209 E 7th St, Madera, CA 93638. The listed phone number is (559) 673-3508.
What is Mark Duarte's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Mark Duarte enrolled in Medicare?
Yes. Mark Duarte 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 Mark Duarte's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Duarte reassigns Medicare benefits to Sud Specialty Group - Ca (Santa Clara, 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 Mark Duarte'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 Mark Duarte was last updated on March 2, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Mr. Mark Louis Duarte, MSW, LCSW · NPI 1679814552
Clinical provider in Madera, California. Individual provider, active in the CMS NPPES registry since March 2, 2013.
## Identity
- **NPI:** 1679814552 (Entity type: Individual)
- **Enumerated:** March 2, 2013
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** LCSW 8636 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 209 E 7TH ST, Madera, CA 93638-3780
- **Phone:** (559) 673-3508
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Sud Specialty Group - Ca (NPI 1972138238, Santa Clara, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1979
## Record status
- **NPPES last updated:** March 2, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1679814552) · Data from the CMS NPPES public registry.