1. Home
  2. Directory
  3. Florida
  4. St Augustine
  5. Social Worker
  6. NPI Profile

DENISE MERSHON LCSW
NPI 1023597499
Social Worker - Clinical in St Augustine, FL

Active since August 07, 2018PECOS Enrolled
1880 SAN SEBASTIAN VW, ST AUGUSTINE, FL 32084(800) 539-4228 Get Directions Write a Review

NPPES record last updated: October 18, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 9, 2024, May 6, 2019, Aug 7, 2018 (3 updates tracked since 2018).

About Denise Mershon Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DENISE MERSHON LCSW (NPI 1023597499) is an individual clinical provider in St Augustine, Florida, licensed in Florida (SW20061) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1023597499
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDENISE MERSHONCredential: LCSW
Location Address1880 SAN SEBASTIAN VWSt Augustine, FL 32084-8684
Mailing Address150 Magnolia AveDaytona Beach, FL 32114-4304 · (800) 539-4228
Phone(800) 539-4228
Sole ProprietorYes
Enumeration DateAugust 7, 2018
Last NPPES UpdateOctober 18, 20243 updates tracked since enumeration
NPPES CertifiedOctober 18, 2024
✔ NPI 1023597499 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in FL · SW20061✔ Licensed in TX · 65198
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
1880 SAN SEBASTIAN VW, St Augustine, FL 32084
Open in Google Maps ↗

Secondary Practice Locations 2

Location 13601 Smartt StRowlett, TX 75088-4991 · Phone (732) 744-6277
Location 2105 Kathryn Dr Ste DLewisville, TX 75067-4200 · Phone (800) 972-0643 · Fax (214) 279-5032

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare, Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Denise Mershon Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Denise Mershon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sma Healthcare, Inc
53 mi
Federally Qualified Health Center (FQHC)
420 STADIUM ROAD
Daytona Beach, FL 32114
  • Reassigned Medicare billing, Florida enrollment
  • 114 clinicians in this Medicare group
NPI 1255950168 (800) 539-4228

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 32084 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $56.00 – $171.84
Typical copayment $0.00 (range $14.00 – $42.96)
Most-billed visit code NA
Established Patient
$70.04 typical visit price
range $17.57 – $139.16
Typical copayment $17.51 (range $4.39 – $34.79)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LISA MARIE HARVEY LCSW
Social Worker (Clinical)
1880 SAN SEBASTIAN VW
SAINT AUGUSTINE, FL 32084
St. Johns County (386) 383-1934
PHILLIP GONZALEZ
Counselor (Mental Health)
1880 SAN SEBASTIAN VW
ST AUGUSTINE, FL 32084
St. Johns County (800) 539-4228
NICOLE LAUVER
Counselor (Mental Health)
1880 SAN SEBASTIAN VW
ST AUGUSTINE, FL 32084
St. Johns County (800) 539-4228
REBECCA ELAINE PALMER PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
1880 SAN SEBASTIAN VW
ST AUGUSTINE, FL 32084
St. Johns County (800) 539-4228

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 Denise Mershon's NPI number?

The NPI number for Denise Mershon is 1023597499. It was assigned to this individual provider in the NPPES registry on August 7, 2018.

Where is Denise Mershon located?

Denise Mershon practices at 1880 San Sebastian Vw, St Augustine, FL 32084. The listed phone number is (800) 539-4228.

What is Denise Mershon's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Denise Mershon enrolled in Medicare?

Yes. Denise Mershon is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Denise Mershon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Denise Mershon reassigns Medicare benefits to Sma Healthcare, Inc (Daytona Beach, FL). 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 Denise Mershon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Denise Mershon accept?

Health plans from Cigna Healthcare, Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and Oscar Insurance Company list Denise Mershon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Denise Mershon was last updated on October 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.