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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MS. DIANA MARTHA CLARK LCSW MSW MA DMIN
NPI 1598736035
Social Worker - Clinical in Portland, OR

Active since February 01, 2006PECOS EnrolledAccepts Medicare Assignment
7711 SW 40TH AVE, PORTLAND, OR 97219(503) 232-4416 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 12, 2026, Jul 13, 2026 (2 updates tracked since 2026).

About Ms. Diana Martha Clark Lcsw Msw Ma Dmin NPPES

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

MS. DIANA MARTHA CLARK LCSW MSW MA DMIN (NPI 1598736035) is an individual clinical provider in Portland, Oregon, licensed in Oregon (1594) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1979).

NPPES Registry Identity

NPI1598736035
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. DIANA MARTHA CLARKCredential: LCSW MSW MA DMIN
Location Address7711 SW 40TH AVEPortland, OR 97219-1641
Mailing Address7711 Sw 40th AvePortland, OR 97219-1641 · (503) 232-4416
Phone(503) 232-4416
Sole ProprietorYes
Medical School CMSOtherGraduated 1979
Enumeration DateFebruary 1, 2006
Last NPPES UpdateAugust 12, 20262 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
✔ NPI 1598736035 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 OR · 1594
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.
7711 SW 40TH AVE, Portland, OR 97219
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Diana Martha Clark Lcsw Msw Ma Dmin is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8325368368
PECOS Enrollment IDI20150514002760
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97219 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 $58.99 – $176.88
Typical copayment $0.00 (range $14.74 – $44.22)
Most-billed visit code NA
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
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.

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 Diana Clark's NPI number?

The NPI number for Diana Clark is 1598736035. It was assigned to this individual provider in the NPPES registry on February 1, 2006.

Where is Diana Clark located?

Diana Clark practices at 7711 SW 40th Ave, Portland, OR 97219. The listed phone number is (503) 232-4416.

What is Diana Clark's specialty?

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

Is Diana Clark enrolled in Medicare?

Yes. Diana Clark is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Diana Clark accept?

Health plans from Moda Health Plan, Inc. list Diana Clark 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 Diana Clark was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.