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LAWRENCE R MARSH LCSW
NPI 1043850332
Social Worker - Clinical in Boulder, CO

Active since January 14, 2020PECOS Enrolled
7722 BROCKWAY DR, BOULDER, CO 80303(303) 641-6608 Get Directions Write a Review

NPPES record last updated: January 14, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Lawrence R Marsh Lcsw NPPES

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

LAWRENCE R MARSH LCSW (NPI 1043850332) is an individual clinical provider in Boulder, Colorado, licensed in Colorado (991081) and active in the NPI registry since January 2020. He is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1043850332
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameLAWRENCE R MARSHCredential: LCSW
Location Address7722 BROCKWAY DRBoulder, CO 80303-4827
Mailing Address7722 Brockway DrBoulder, CO 80303-4827 · (303) 641-6608
Phone(303) 641-6608
Sole ProprietorYes
Medical School CMSOtherGraduated 1989
Enumeration DateJanuary 14, 2020
✔ NPI 1043850332 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 · 991081
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.
7722 BROCKWAY DR, Boulder, CO 80303
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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)

Lawrence R Marsh Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5799266573
PECOS Enrollment IDI20260220000828
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 Lawrence Marsh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Denver Health And Hospital Authority
20 mi
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

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 80303 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

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

NATALIE PORTMAN-MARSH LCSW
Social Worker (Clinical)
7722 BROCKWAY DR
BOULDER, CO 80303
Boulder County (303) 499-9123

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 Lawrence Marsh's NPI number?

The NPI number for Lawrence Marsh is 1043850332. It was assigned to this individual provider in the NPPES registry on January 14, 2020.

Where is Lawrence Marsh located?

Lawrence Marsh practices at 7722 Brockway Dr, Boulder, CO 80303. The listed phone number is (303) 641-6608.

What is Lawrence Marsh's specialty?

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

Is Lawrence Marsh enrolled in Medicare?

Yes. Lawrence Marsh is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lawrence Marsh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lawrence Marsh reassigns Medicare benefits to Denver Health And Hospital Authority (Denver, CO). 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 Lawrence Marsh'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 Lawrence Marsh was last updated on January 14, 2020. 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.