MASON ALEXANDER KINGHORN LCSW
NPI 1699337337
Social Worker - Clinical in Saint Louis, MO

Active since July 02, 2019PECOS EnrolledAccepts Medicare Assignment
6155 S GRAND BLVD, SAINT LOUIS, MO 63111(314) 652-0100 Get Directions Write a Review

NPPES record last updated: April 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 28, 2026, Jun 7, 2021, Jul 2, 2019 (3 updates tracked since 2019).

About Mason Alexander Kinghorn Lcsw NPPES

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

MASON ALEXANDER KINGHORN LCSW (NPI 1699337337) is an individual clinical provider in Saint Louis, Missouri, licensed in Missouri (2017005573) and active in the NPI registry since July 2019. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1699337337
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMASON ALEXANDER KINGHORNCredential: LCSW
Location Address6155 S GRAND BLVDSaint Louis, MO 63111-2319
Mailing Address6155 S Grand BlvdSaint Louis, MO 63111-2319 · (314) 652-0100
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJuly 2, 2019
Last NPPES UpdateApril 28, 20263 updates tracked since enumeration
NPPES CertifiedApril 28, 2026
NPI 1699337337 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 · 2017005573
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.
6155 S GRAND BLVD, Saint Louis, MO 63111

Secondary Practice Locations 2

Location 13225 N Florissant AveSaint Louis, MO 63107-3521 · Phone (314) 652-0100
Location 224 N Sprigg StCape Girardeau, MO 63701-5733 · Phone (314) 652-0100

Other Identifiers 1

Other2019037258MO · Lcsw

Accepted 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

Mason Alexander Kinghorn 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 ID143552604
PECOS Enrollment IDI20191101001890
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 63111 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 9

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

Internal Medicine
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Social Worker (Clinical)
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Dental Hygienist
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Nurse Practitioner (Family)
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Pharmacy (Community/Retail Pharmacy)
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Nurse Practitioner (Family)
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Acupuncturist
6155 S GRAND BLVD
SAINT LOUIS, MO 63111
Clinic/Center (Federally Qualified Health Center (FQHC))
6155 S GRAND BLVD
SAINT LOUIS, MO 63111

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 Mason Kinghorn's NPI number?

The NPI number for Mason Kinghorn is 1699337337. It was assigned to this individual provider in the NPPES registry on July 2, 2019.

Where is Mason Kinghorn located?

Mason Kinghorn practices at 6155 S Grand Blvd, Saint Louis, MO 63111. The listed phone number is (314) 652-0100.

What is Mason Kinghorn's specialty?

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

Is Mason Kinghorn enrolled in Medicare?

Yes. Mason Kinghorn 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 Mason Kinghorn 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 Mason Kinghorn 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 Mason Kinghorn was last updated on April 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.