ALLERGY & ARTHRITIS TREATMENT CENTERS LLC
NPI 1891931689
Allergy & Immunology in Port Charlotte, FL

Q: What is Allergy & Arthritis Treatment Centers LLC's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Active since December 28, 2008

22226 WESTCHESTER BLVD, PORT CHARLOTTE, FL 33952(941) 625-3402 Get Directions Write a Review

NPPES record last updated: October 6, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Allergy & Arthritis Treatment Centers Llc NPPES

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

ALLERGY & ARTHRITIS TREATMENT CENTERS LLC (NPI 1891931689), doing business as Leslie Tar, Md, is a healthcare organization registered as an allergy & immunology in Port Charlotte, Florida and active in the NPI registry since December 2008. The organization lists Leslie Tar, Member, as its authorized official.

NPPES Registry Identity

NPI1891931689

Entity TypeOrganization

Primary Taxonomy207K00000X

Legal Business NameALLERGY & ARTHRITIS TREATMENT CENTERS LLC

Location Address22226 WESTCHESTER BLVDPort Charlotte, FL 33952-9202

Mailing Address22226 Westchester BlvdPort Charlotte, FL 33952-9202 · (941) 625-3402

Phone(941) 625-3402

Organization SubpartNo

Authorized OfficialLeslie TarMember · (941) 625-3402

Enumeration DateDecember 28, 2008

Last NPPES UpdateOctober 6, 2010

✔ NPI 1891931689 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in FL · 3658046

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

22226 WESTCHESTER BLVD, Port Charlotte, FL 33952

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Other Names 1

Former Legal Business NameLeslie Tar, Md

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Allergy & Arthritis Treatment Centers Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Allergy & Arthritis Treatment Centers LLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Leslie Tar, MD

Rheumatology

NPI 1720004484

22226 WESTCHESTER BLVD
Port Charlotte, FL 33952

(941) 625-3402

✔ PECOS✔ Accepts MedicareSame address

Karen Tar, APRN

Nurse Practitioner

NPI 1700988235

22226 WESTCHESTER BLVD
Port Charlotte, FL 33952

(941) 625-3402

✔ 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 Allergy & Arthritis Treatment Centers LLC's NPI number?

The NPI number for Allergy & Arthritis Treatment Centers LLC is 1891931689. It was assigned to this organization in the NPPES registry on December 28, 2008. The provider was formerly known as Leslie Tar, MD.

Where is Allergy & Arthritis Treatment Centers LLC located?

Allergy & Arthritis Treatment Centers LLC is located at 22226 Westchester Blvd, Port Charlotte, FL 33952. The listed phone number is (941) 625-3402.

What is Allergy & Arthritis Treatment Centers LLC's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Allergy & Arthritis Treatment Centers LLC enrolled in Medicare?

Yes. Allergy & Arthritis Treatment Centers LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Allergy & Arthritis Treatment Centers LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Allergy & Arthritis Treatment Centers LLC, in Nurse Practitioner and Rheumatology. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Allergy & Arthritis Treatment Centers LLC was last updated on October 6, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.