MATTHEW W MEIER LLC — NPI 1801084421 (Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center in O FALLON, MO)

CMS-1500 Box 24J / 33a • NPI

1801084421

Type 2 Organization (Box 32a/33a)

HIPAA NUCC Taxonomy • CMS Code

261QM2500X

Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center

Box 32 Service Location & ZIP+4

1002 PERUQUE CROSSING CT, SUITE 102, O FALLON, MO, 63366-2362

✓ 9-Digit EDI 837 ZIP+4 (63366-2362)

Practice Phone & Referral Fax

(636) 294-5757

Fax: (636) 294-5742

✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1801084421 (MATTHEW W MEIER LLC) 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

Institutional Type-2 NPI facilities enroll via CMS-855A institutional provider agreements rather than individual Order & Referring PECOS.

Official CMS NPPES Credential & Practice Profile

10-Digit NPI Number	`1801084421` (NPI-2 Organization / Facility)
Provider / Legal Name	MATTHEW W MEIER LLC
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	1002 PERUQUE CROSSING CT, SUITE 102, O FALLON, MO, 63366-2362
Practice Telephone / Fax	Tel: (636) 294-5757 \| Fax: (636) 294-5742
Administrative Mailing Address	1002 PERUQUE CROSSING COURT, OFALLON, MO, 63366-2362
Enumeration & Last Sync	Enumerated: 2007-10-09 \| CMS Record Updated: 2012-11-29
Authorized Official	TAMARA ROTH (Ofice Manager)

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

1002 PERUQUE CROSSING CT, SUITE 102, O FALLON, MO, 63366-2362

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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 (MATTHEW W MEIER LLC)

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
`261QM2500X` — Clinic/Center, Medical Specialty Plain English: Licensed Outpatient Medical Clinic / Urgent Care & Ambulatory Center	State: MO \| License: `r9j58` \| Primary: Yes (Primary)

Medical Billing, RCM & Hospital Credentialing Teams:

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MATTHEW W MEIER LLC (NPI #1801084421)