HOUSTON MEDICAL CENTER ASC, LLC
NPI 1861335903
Clinic/Center - Ambulatory Surgical in Houston, TX
NPI Status: Active since April 13, 2026
Contact Information
6624 FANNIN TOWER #1550
HOUSTON, TX
ZIP 77030
Phone: (832) 680-4680
- Organization
- Clinic/Center
- Ambulatory Surgical
- CLIA Number: 45D1020113
- CLIA Cert. Type: Hospital
- CLIA Exp. Date: 11-17-2027
About HOUSTON MEDICAL CENTER ASC, LLC
This page provides the complete NPI Profile along with additional information for Houston Medical Center Asc, Llc, a provider established in Houston, Texas operating as a Clinic/center, focusing in ambulatory surgical . The healthcare provider is registered in the NPI registry with number 1861335903 assigned on April 2026. The practitioner's primary taxonomy code is 261QA1903X. The provider is registered as an organization and their NPI record was last updated April 2026. The authorized official of this NPI record is Sheree Leppinen Rn (Coo)
- NPI
- 1861335903
- Provider Name
- HOUSTON MEDICAL CENTER ASC, LLC
- Entity Type
- Organization
- Location Address
- 6624 FANNIN TOWER #1550 HOUSTON, TX 77030
- Location Phone
- (832) 680-4680
- Mailing Address
- 231 S BEMISTON AVE STE 850 SAINT LOUIS, MO 63105
- Mailing Phone
- (727) 692-8882
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 04-13-2026
- Last Update Date
- 04-13-2026
- Code Navigator
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Clinic/Center Ambulatory Surgical
- Taxonomy Code
- 261QA1903X
- Type
- Ambulatory Health Care Facilities
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 45D1020113
- Facility Type
- Hospital
- Certificate Effective Date
- November 18, 2025
- Certificate Expiration Date
- November 17, 2027
- Laboratory Director
- DR. THINH Q. VO
- Certificate Type
- Certificate of Accreditation
- Certificate Type Description
- This is a CLIA certificate is issued to Houston Medical Center Asc, Llc on the basis of the laboratory's accreditation by an accreditation organization approved by CMS. This type of certificate is issued to a laboratories tha perform nonwaived (moderate and/or high complexity) testing.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1861335903, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 57 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1861335903, enumerated as an "organization" on April 13, 2026.
The provider is located at 6624 FANNIN TOWER #1550 HOUSTON, TX 77030 and the phone number is (832) 680-4680.
Clinic/Center with taxonomy code 261QA1903X and a focus in Ambulatory Surgical.
