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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DIANA BLACKWELL LCSW
NPI 1811088446
Social Worker - Clinical in Crystal City, MO

Active since September 27, 2006PECOS EnrolledAccepts Medicare Assignment
508 N TRUMAN BLVD STE F, CRYSTAL CITY, MO 63019(573) 315-5549(888) 783-3165 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 7, 2026, May 14, 2025, Oct 6, 2023 (3 updates tracked since 2023).

About Diana Blackwell Lcsw NPPES

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

DIANA BLACKWELL LCSW (NPI 1811088446) is an individual clinical provider in Crystal City, Missouri, licensed in Missouri (005911) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Bonne Terre, and is a graduate of Other (1997).

NPPES Registry Identity

NPI1811088446
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDIANA BLACKWELLCredential: LCSW
Location Address508 N TRUMAN BLVD STE FCrystal City, MO 63019-1344
Mailing Address508 N Truman Blvd Ste FCrystal City, MO 63019-1344 · (202) 641-3750 · Fax (888) 783-3165
Phone(573) 315-5549
Fax(888) 783-3165
Sole ProprietorYes
Medical School CMSOtherGraduated 1997
Enumeration DateSeptember 27, 2006
Last NPPES UpdateJuly 7, 20263 updates tracked since enumeration
NPPES CertifiedJuly 7, 2026
✔ NPI 1811088446 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 MO · 005911
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.
508 N TRUMAN BLVD STE F, Crystal City, MO 63019
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Secondary Practice Location 1

Location 18135 Berry RdBonne Terre, MO 63628-4355 · Phone (573) 315-5549 · Fax (888) 783-3165

Other Identifiers 1

Medicaid493964837MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.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

Diana Blackwell Lcsw 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 ID1456509645
PECOS Enrollment IDI20120912000867
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 63019 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 $55.65 – $169.38
Typical copayment $0.00 (range $13.91 – $42.34)
Most-billed visit code NA
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
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.

PSYCHOTHERAPY LLC
Social Worker (Clinical)
508 N TRUMAN BLVD STE F
CRYSTAL CITY, MO 63019
Jefferson County (636) 931-8784

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 Blackwell's NPI number?

The NPI number for Diana Blackwell is 1811088446. It was assigned to this individual provider in the NPPES registry on September 27, 2006.

Where is Diana Blackwell located?

Diana Blackwell practices at 508 N Truman Blvd Ste F, Crystal City, MO 63019. The listed phone number is (573) 315-5549.

What is Diana Blackwell's specialty?

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

Is Diana Blackwell enrolled in Medicare?

Yes. Diana Blackwell 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 Blackwell accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 5 other insurers list Diana Blackwell 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 Blackwell was last updated on July 7, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.