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KEELAN CHATTAN LCSW
NPI 1174902860
Social Worker - Clinical in Denver, CO

Active since May 27, 2015PECOS Enrolled
777 BANNOCK ST, DENVER, CO 80204(303) 436-7000 Get Directions Write a Review

NPPES record last updated: December 3, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Keelan Chattan Lcsw NPPES

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

KEELAN CHATTAN LCSW (NPI 1174902860) is an individual clinical provider in Denver, Colorado and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1174902860
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameKEELAN CHATTANCredential: LCSW
Location Address777 BANNOCK STDenver, CO 80204-4507
Mailing Address1333 Iris AveBoulder, CO 80304-2226
Phone(303) 436-7000
Sole ProprietorNo
Enumeration DateMay 27, 2015
Last NPPES UpdateDecember 3, 2019
✔ NPI 1174902860 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.
777 BANNOCK ST, Denver, CO 80204
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Select Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Keelan Chattan 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

3

Medicare enrollment records show Keelan Chattan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Denver Health And Hospital Authority
Same address
General Practice
777 BANNOCK ST
Denver, CO 80204
  • Reassigned Medicare billing, Colorado enrollment
  • 2,259 clinicians in this Medicare group
NPI 1477569838 (303) 436-6000
Community Reach Center, Inc
9.0 mi
Community/Behavioral Health
8931 HURON ST
Thornton, CO 80260
  • Reassigned Medicare billing, Colorado enrollment
  • 96 clinicians in this Medicare group
NPI 1316906886 (303) 853-3500
Family Care Center, LLC
65 mi
Mental Health (Including Community Mental Health Center)
2860 S CIRCLE DR STE 109
Colorado Springs, CO 80906
  • Reassigned Medicare billing, Colorado enrollment
  • 400 clinicians in this Medicare group
NPI 1790141984 (719) 540-2100

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 80204 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.

MS. KATHERINE JEANNE CARLEY RN, MSN, CS
Clinical Nurse Specialist (Psychiatric/Mental Health)
777 BANNOCK ST
DENVER, CO 80204
Denver County (303) 436-6630
RYAN DEAN LATERZA M.D.
Anesthesiology
777 BANNOCK ST
DENVER, CO 80204
Denver County (303) 436-6000
BARBARA E ANDERSON NP
Nurse Practitioner
777 BANNOCK ST
DENVER, CO 80204
Denver County (303) 602-0340
PHILIP ANDREOLI D.O.
Hospitalist
777 BANNOCK ST
DENVER, CO 80204
Denver County (303) 436-4949
JESSICA RENEE KUDLOCK LCSW
Social Worker (Clinical)
777 BANNOCK ST
DENVER, CO 80204
Denver County (303) 602-7220
ELIZABETH PERKINS-PRIDE
Nurse Practitioner
777 BANNOCK ST
DENVER, CO 80204
Denver County (303) 436-6000
KIRSTEN ERIKSEN PA-C
Physician Assistant
777 BANNOCK ST
DENVER, CO 80204
Denver County (303) 436-6000
KATHRYN IRENE GARNER MD, MPH
Family Medicine
777 BANNOCK ST
DENVER, CO 80204
Denver County (303) 436-6000

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 Keelan Chattan's NPI number?

The NPI number for Keelan Chattan is 1174902860. It was assigned to this individual provider in the NPPES registry on May 27, 2015.

Where is Keelan Chattan located?

Keelan Chattan practices at 777 Bannock St, Denver, CO 80204. The listed phone number is (303) 436-7000.

What is Keelan Chattan's specialty?

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

Is Keelan Chattan enrolled in Medicare?

Yes. Keelan Chattan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Keelan Chattan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Keelan Chattan reassigns Medicare benefits to 3 organizations: Denver Health And Hospital Authority (Denver, CO), Community Reach Center, Inc (Thornton, CO) and Family Care Center, LLC (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 Keelan Chattan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Keelan Chattan accept?

Health plans from Select Health list Keelan Chattan 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 Keelan Chattan was last updated on December 3, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.