MARISSA ELAINE LAMASTUS LCSW
NPI 1154898849
Social Worker - Clinical in Colorado Springs, CO

Active since October 31, 2018PECOS Enrolled
115 S PARKSIDE DR, COLORADO SPRINGS, CO 80910(719) 572-6100 Get Directions Write a Review

NPPES record last updated: July 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 6, 2026, Jan 26, 2023, Oct 31, 2018 (3 updates tracked since 2018).

About Marissa Elaine Lamastus Lcsw NPPES

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

MARISSA ELAINE LAMASTUS LCSW (NPI 1154898849) is an individual clinical provider in Colorado Springs, Colorado, licensed in Colorado (CSW.09925098) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS and maintains a secondary practice location in Colorado Springs.

NPPES Registry Identity

NPI1154898849
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMARISSA ELAINE LAMASTUSCredential: LCSW
Location Address115 S PARKSIDE DRColorado Springs, CO 80910-3130
Mailing Address1032 Norwood AveColorado Springs, CO 80905-3502
Sole ProprietorNo
Enumeration DateOctober 31, 2018
Last NPPES UpdateJuly 6, 20263 updates tracked since enumeration
NPPES CertifiedJuly 6, 2026
✔ NPI 1154898849 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CO · CSW.09925098
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.
115 S PARKSIDE DR, Colorado Springs, CO 80910

Other Names 1

Other Name (5)Marissa Elaine Legal Lcsw

Secondary Practice Location 1

Location 17435 Sisters Grv Ste 400Colorado Springs, CO 80923-2631 · Phone (719) 571-8030 · Fax (719) 571-8031

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marissa Elaine Lamastus 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 Reassignments

2

Medicare enrollment records show Marissa Lamastus reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mental Health (Including Community Mental Health Center)
115 S PARKSIDE DR
Colorado Springs, CO 80910
  • Reassigned Medicare billing, Colorado enrollment
  • 72 clinicians in this Medicare group
Psychiatry
825 E PIKES PEAK AVE
Colorado Springs, CO 80903
  • Reassigned Medicare billing, Colorado enrollment
  • 1,193 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 80910 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 $58.06 – $174.82
Typical copayment $0.00 (range $14.51 – $43.70)
Most-billed visit code NA
Established Patient
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
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 20

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

Registered Nurse
115 S PARKSIDE DR
COLORADO SPRINGS, CO 80910
Case Manager/Care Coordinator
115 S PARKSIDE DR
COLORADO SPRINGS, CO 80910
Case Manager/Care Coordinator
115 S PARKSIDE DR
COLORADO SPRINGS, CO 80910
Case Manager/Care Coordinator
115 S PARKSIDE DR
COLORADO SPRINGS, CO 80910
Counselor (Mental Health)
115 S PARKSIDE DR
COLORADO SPRINGS, CO 80910
Counselor (Professional)
115 S PARKSIDE DR
COLORADO SPRINGS, CO 80910
Counselor (Addiction (Substance Use Disorder))
115 S PARKSIDE DR
COLORADO SPRINGS, CO 80910
Social Worker (Clinical)
115 S PARKSIDE DR
COLORADO SPRINGS, CO 80910

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 Marissa Lamastus's NPI number?

The NPI number for Marissa Lamastus is 1154898849. It was assigned to this individual provider in the NPPES registry on October 31, 2018. The provider is also known as Marissa Elaine Legal Lcsw.

Where is Marissa Lamastus located?

Marissa Lamastus practices at 115 S Parkside Dr, Colorado Springs, CO 80910. The listed phone number is (719) 572-6100.

What is Marissa Lamastus's specialty?

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

Is Marissa Lamastus enrolled in Medicare?

Yes. Marissa Lamastus is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marissa Lamastus's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Lamastus reassigns Medicare benefits to 2 organizations: Diversus Health Inc (Colorado Springs, CO) and Catholic Health Initiatives Colorado (Colorado Springs, CO). Each 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 Marissa Lamastus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marissa Lamastus accept?

Health plans from Select Health list Marissa Lamastus 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 Marissa Lamastus was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.