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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.

KARLA J BLOCK LLC
NPI 1417669599
Social Worker in Hamilton, MI

Active since December 20, 2022
6036 RIVER RIDGE DR, HAMILTON, MI 49419(517) 214-9154 Get Directions Write a Review

NPPES record last updated: November 4, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 4, 2026, Dec 20, 2022 (2 updates tracked since 2022).

About Karla J Block Llc NPPES

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

KARLA J BLOCK LLC (NPI 1417669599) is a healthcare organization registered as a social worker in Hamilton, Michigan and active in the NPI registry since December 2022. The organization lists Mary Beth Houpt, Credentialing, as its authorized official.

NPPES Registry Identity

NPI1417669599
Entity TypeOrganization
Primary Taxonomy104100000X
Legal Business NameKARLA J BLOCK LLC
Location Address6036 RIVER RIDGE DRHamilton, MI 49419-9654
Mailing AddressPo Box 10Mason, MI 48854-0010
Phone(517) 214-9154
Organization SubpartNo
Authorized OfficialMary Beth HouptCredentialing · (517) 676-9797
Enumeration DateDecember 20, 2022
Last NPPES UpdateNovember 4, 20262 updates tracked since enumeration
NPPES CertifiedNovember 4, 2026
✔ NPI 1417669599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
6036 RIVER RIDGE DR, Hamilton, MI 49419
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karla J Block Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Karla J Block LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Karla Block, LMSW
Clinical Social Worker
NPI 1811135486
6036 RIVER RIDGE DR
Hamilton, MI 49419
(517) 214-9154
✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Karla J Block LLC's NPI number?

The NPI number for Karla J Block LLC is 1417669599. It was assigned to this organization in the NPPES registry on December 20, 2022.

Where is Karla J Block LLC located?

Karla J Block LLC is located at 6036 River Ridge Dr, Hamilton, MI 49419. The listed phone number is (517) 214-9154.

What is Karla J Block LLC's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Karla J Block LLC enrolled in Medicare?

Yes. Karla J Block LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Karla J Block LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Karla J Block LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Karla J Block LLC accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Karla J Block LLC 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 Karla J Block LLC was last updated on November 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.