KATHARINE P TREWARTHA
NPI 1487176350
Social Worker - Clinical in Denver, CO

Q: What is Katharine Trewartha's NPI number?

The NPI number for Katharine Trewartha is 1487176350. It was assigned to this individual provider in the NPPES registry on July 12, 2017.

Q: What is Katharine Trewartha's specialty?

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

Active since July 12, 2017PECOS Enrolled

1355 S COLORADO BLVD STE 100, DENVER, CO 80222(303) 756-9052 Get Directions Write a Review

NPPES record last updated: March 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 16, 2026, Nov 24, 2020, Jul 12, 2017 (3 updates tracked since 2017).

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About Katharine P Trewartha NPPES

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

KATHARINE P TREWARTHA (NPI 1487176350) is an individual clinical provider in Denver, Colorado and active in the NPI registry since July 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1487176350

Entity TypeIndividualFemale

Primary Taxonomy1041C0700X

Provider Legal NameKATHARINE P TREWARTHA

Location Address1355 S COLORADO BLVD STE 100Denver, CO 80222-3310

Mailing Address1355 S Colorado Blvd Ste 100Denver, CO 80222-3310

Phone(303) 756-9052

Sole ProprietorNo

Enumeration DateJuly 12, 2017

Last NPPES UpdateMarch 16, 20263 updates tracked since enumeration

NPPES CertifiedMarch 16, 2026

✔ NPI 1487176350 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code1041C0700X

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.

1355 S COLORADO BLVD STE 100, Denver, CO 80222

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katharine P Trewartha 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 Katharine Trewartha reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Maria Droste Services Of Colorado, Inc.

Same address

Community/Behavioral Health

1355 S COLORADO BLVD, SUITE C-100
Denver, CO 80222

Reassigned Medicare billing, Colorado enrollment
11 clinicians in this Medicare group

NPI 1780894972 (303) 756-8052

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 80222 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.

MR. MICHAEL J VOGL

Counselor (Mental Health)