TATIANA ALEXEEV — NPI 1902268410 (Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center in GLENVIEW, IL)

CMS-1500 Box 24J / 33a • NPI

1902268410

Type 1 Individual Rendering/Ordering

HIPAA NUCC Taxonomy • CMS Code

261QM2500X

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center

Box 32 Service Location & ZIP+4

3633 W LAKE AVE STE 303, GLENVIEW, IL, 60026-5803

✓ 9-Digit EDI 837 ZIP+4 (60026-5803)

Practice Phone & Referral Fax

(224) 432-5803

Direct NPPES Verification Line

✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1902268410 (TATIANA ALEXEEV) has 0 active federal exclusions across all 84,224 HHS OIG LEIE sanction records (Database Verified: 2026-11-11).

CMS Medicare Order & Referring PECOS Eligibility

This practitioner does not currently appear in the CMS individual Order & Referring PECOS file (may practice in pediatrics, commercial-only networks, or hospital-employed settings).

Official CMS NPPES Credential & Practice Profile

10-Digit NPI Number	`1902268410` (NPI-1 Individual Practitioner)
Provider / Legal Name	TATIANA ALEXEEV
Plain-English Specialty	Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center NUCC Code: `261QM2500X` (Clinic/Center, Medical Specialty)
Certifying / Licensing Body	Accreditation Association for Ambulatory Health Care (AAAHC) / CMS
Practice Location Address	3633 W LAKE AVE STE 303, GLENVIEW, IL, 60026-5803
Practice Telephone / Fax	Tel: (224) 432-5803
Administrative Mailing Address	911 DIVISION ST, BARRINGTON, IL, 60010-5087
Enumeration & Last Sync	Enumerated: 2016-03-23 \| CMS Record Updated: 2020-03-24

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

3633 W LAKE AVE STE 303, GLENVIEW, IL, 60026-5803

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Plain-English Taxonomy & CMS Crosswalk (261QM2500X)

What Does Taxonomy Code 261QM2500X Mean?

In the HIPAA National Uniform Claim Committee (NUCC) classification, code 261QM2500X translates to:
"Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center"

CMS-1500 Medicare Specialty Crosswalk: Standard HIPAA X12N 837P / CMS-1500
Certifying / Accrediting Authority: Accreditation Association for Ambulatory Health Care (AAAHC) / CMS
Clinical Scope: Same-day outpatient consultations, urgent walk-in medical care, vaccinations, and day-case diagnostic procedures.

Specialty Clinical Procedures & Therapeutic Classes

Standard Scope of Care (TATIANA ALEXEEV)

Typical CPT / Diagnostic Procedures:

Walk-In Urgent Care Evaluation, Point-of-Care Testing & X-Ray
Same-Day Ambulatory Endoscopy, Cataract & Minor Surgical Procedures

Common Therapeutic Classes:

Outpatient Oral Antimicrobials, Analgesics, Nebulizers & Vaccines

All Registered NUCC Taxonomies & State Licenses

Taxonomy Code & Plain-English Description	State License & Primary Status
`163WP2201X` — Registered Nurse, Ambulatory Care Plain English: Licensed & Credentialed Registered Nurse, Ambulatory Care	State: IL \| License: `209013872` \| Primary: Secondary
`363LA2200X` — Nurse Practitioner, Adult Health Plain English: Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Nurse Practitioner, Adult Health	State: IL \| License: `277000101` \| Primary: Secondary
`261QM2500X` — Clinic/Center, Medical Specialty Plain English: Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center	State: IL \| License: `209013872` \| Primary: Yes (Primary)

Medical Billing, RCM & Hospital Credentialing Teams:

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TATIANA ALEXEEV (NPI #1902268410)