LAKESHORE BONE & JOINT INSTITUTE II, LLC
NPI 1821326240
Orthopaedic Surgery - Orthopaedic Surgery of the Spine in Chesterton, IN

Q: What is Lakeshore Bone & Joint Institute II, LLC's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

Active since November 23, 2009

601 GATEWAY BLVD N, CHESTERTON, IN 46304(219) 921-1444(219) 921-5303 Get Directions Write a Review

NPPES record last updated: March 10, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 10, 2022, May 19, 2021, Mar 22, 2021 and 5 more (8 updates tracked since 2017).

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About Lakeshore Bone & Joint Institute Ii, Llc NPPES

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

LAKESHORE BONE & JOINT INSTITUTE II, LLC (NPI 1821326240) is a healthcare organization registered as an orthopaedic surgery of the spine in Chesterton, Indiana and active in the NPI registry since November 2009. The organization maintains 4 additional practice locations and lists Anton A Thompkins, President, as its authorized official.

NPPES Registry Identity

NPI1821326240

Entity TypeOrganization

Primary Taxonomy207XS0117X

Legal Business NameLAKESHORE BONE & JOINT INSTITUTE II, LLC

Location Address601 GATEWAY BLVD NChesterton, IN 46304-9658

Mailing Address601 Gateway Blvd NChesterton, IN 46304-9658 · (219) 921-1444 · Fax (219) 921-5303

Phone(219) 921-1444

Fax(219) 921-5303

Organization SubpartYesParent: Lakeshore Bone & Joint Insititute, Inc

Authorized OfficialAnton A ThompkinsPresident · (219) 921-1444

Enumeration DateNovember 23, 2009

Last NPPES UpdateMarch 10, 20228 updates tracked since enumeration

NPPES CertifiedOctober 14, 2021

✔ NPI 1821326240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic Surgery of the SpineAllopathic & Osteopathic Physicians

Taxonomy Code207XS0117X

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.

601 GATEWAY BLVD N, Chesterton, IN 46304

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Secondary Practice Locations 4

Location 1759 45th StMunster, IN 46321-2938 · Phone (219) 921-1444 · Fax (219) 921-5303

Location 2500 E 109TH AVECROWN POINT, IN 46307-6900 · Phone (219) 921-1444 · Fax (219) 921-5303

Location 33691 Willowcreek RdPortage, IN 46368-5080 · Phone (219) 921-1444 · Fax (219) 921-5303

Location 4600 Legacy Plaza E, Sagamore PlazaLaPorte, IN 46350-5268 · Phone (219) 921-1444 · Fax (219) 921-5303

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 Anthem Blue Cross and Blue Shield.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)

Lakeshore Bone & Joint Institute Ii, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 5 clinicians reassign Medicare billing to Lakeshore Bone & Joint Institute II, LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (5)

Jonathan Hobbs, M.D.

Neurosurgery

NPI 1699023747

601 GATEWAY BLVD N
Chesterton, IN 46304

(219) 921-1444

✔ PECOS✔ Accepts MedicareSame address

Nikola Nenadovich, MD

Orthopedic Surgery

NPI 1487655163

601 GATEWAY BLVD N
Chesterton, IN 46304

(219) 921-1444

✔ PECOS✔ Accepts MedicareSame address

Anton Thompkins, M.D.

Orthopedic Surgery

NPI 1649278235

601 GATEWAY BLVD N
Chesterton, IN 46304

(219) 921-1444

✔ PECOS✔ Accepts MedicareSame address

Dwight Tyndall, MD

Orthopedic Surgery

NPI 1285643205

500 E 109TH AVE
Crown Point, IN 46307

(219) 921-1444

✔ PECOS✔ Accepts Medicare18 mi

Miranda Weaver, AGNP

Nurse Practitioner

NPI 1801422845

818 W KING ST STE 201
Owosso, MI 48867

(989) 723-3168

✔ PECOS✔ Accepts Medicare177 mi

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 Lakeshore Bone & Joint Institute II, LLC's NPI number?

The NPI number for Lakeshore Bone & Joint Institute II, LLC is 1821326240. It was assigned to this organization in the NPPES registry on November 23, 2009.

Where is Lakeshore Bone & Joint Institute II, LLC located?

Lakeshore Bone & Joint Institute II, LLC is located at 601 Gateway Blvd N, Chesterton, IN 46304. The listed phone number is (219) 921-1444.

What is Lakeshore Bone & Joint Institute II, LLC's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

Is Lakeshore Bone & Joint Institute II, LLC enrolled in Medicare?

Yes. Lakeshore Bone & Joint Institute II, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Lakeshore Bone & Joint Institute II, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 3 Medicare specialties reassign their Medicare billing to Lakeshore Bone & Joint Institute II, 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. The largest specialties are Orthopedic Surgery (3), Neurosurgery (1) and Nurse Practitioner (1). Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Lakeshore Bone & Joint Institute II, LLC accept?

Health plans from Anthem Blue Cross and Blue Shield list Lakeshore Bone & Joint Institute II, 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 Lakeshore Bone & Joint Institute II, LLC was last updated on March 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.