PASADENA AMBULATORY SURGERY CENTER
NPI 1508948787
Clinic/Center - Ambulatory Surgical in Pasadena, CA

NPI Status: Active since October 19, 2006

Contact Information

301 S FAIR OAKS AVE
#106
PASADENA, CA
ZIP 91105
Phone: (626) 440-0099

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  • Organization
  • Clinic/Center
  • Ambulatory Surgical
  • CLIA Number: 05D2029202
  • CLIA Cert. Type: Ambulatory Surgery Center
  • CLIA Exp. Date: 08-31-2027

About PASADENA AMBULATORY SURGERY CENTER

This page provides the complete NPI Profile along with additional information for Pasadena Ambulatory Surgery Center, a provider established in Pasadena, California operating as a Clinic/center, focusing in ambulatory surgical . The healthcare provider is registered in the NPI registry with number 1508948787 assigned on October 2006. The practitioner's primary taxonomy code is 261QA1903X. The provider is registered as an organization and their NPI record was last updated 6 years ago. The authorized official of this NPI record is Mr. William Frederick Stephens D.d.s. (Owner)

NPI
1508948787
Provider Name
PASADENA AMBULATORY SURGERY CENTER
Entity Type
Organization
Location Address
301 S FAIR OAKS AVE #106 PASADENA, CA 91105
Location Phone
(626) 440-0099
Mailing Address
11999 SAN VICENTE BLVD #440 LOS ANGELES, CA 90049
Mailing Phone
(310) 471-5852
Mailing Fax
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
10-19-2006
Last Update Date
08-22-2020
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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

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MR. WILLIAM FREDERICK STEPHENS D.D.S.

Authorized Official Title
OWNER
Authorized Official Phone
(626) 440-0099

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
05D2029202
Facility Type
Ambulatory Surgery Center
Certificate Effective Date
September 01, 2025
Certificate Expiration Date
August 31, 2027
Laboratory Director
NABIL S. DAHI
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Pasadena Ambulatory Surgery Center to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1508948787, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
7
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 0 → 0 9 → 18 → 9 8 → 16 → 7 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 0 + 8 + 1 + 8 + 4 + 1 + 6 + 7 + 1 + 6 + 24 = 73

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1508948787.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Dentist (General Practice)
301 S FAIR OAKS AVE, STE 204
PASADENA, CA 91105
Dentist (General Practice)
301 S FAIR OAKS AVE, SUITE 205
PASADENA, CA 91105
Dentist (General Practice)
301 S FAIR OAKS AVE, SUITE 205
PASADENA, CA 91105
Nurse Practitioner (Family)
301 S FAIR OAKS AVE, SUITE 300
PASADENA, CA 91105
Marriage & Family Therapist
301 S FAIR OAKS AVE, SUITE 406B
PASADENA, CA 91105
Dentist (General Practice)
301 S FAIR OAKS AVE, SUITE 205
PASADENA, CA 91105
Dentist (Oral and Maxillofacial Surgery)
301 S FAIR OAKS AVE, SUITE 107
PASADENA, CA 91105
Internal Medicine
301 S FAIR OAKS AVE, SUITE 300
PASADENA, CA 91105
Internal Medicine
301 S FAIR OAKS AVE, SUITE 300
PASADENA, CA 91105
Pharmacy (Community/Retail Pharmacy)
301 S FAIR OAKS AVE, SUITE 104
PASADENA, CA 91105
Acupuncturist
301 S FAIR OAKS AVE, SUITE 300
PASADENA, CA 91105
Physical Therapist
301 S FAIR OAKS AVE, SUITE 401
PASADENA, CA 91105
Internal Medicine
301 S FAIR OAKS AVE, SUITE 201
PASADENA, CA 91105
Clinic/Center (Primary Care)
301 S FAIR OAKS AVE, SUITE 405
PASADENA, CA 91105
Dentist (Prosthodontics)
301 S FAIR OAKS AVE, SUITE 408
PASADENA, CA 91105
Obstetrics & Gynecology (Obstetrics)
301 S FAIR OAKS AVE
PASADENA, CA 91105
Speech-Language Pathologist
301 S FAIR OAKS AVE, SUITE 401
PASADENA, CA 91105
Dentist (General Practice)
301 S FAIR OAKS AVE, #205
PASADENA, CA 91105
General Practice
301 S FAIR OAKS AVE, STE #405
PASADENA, CA 91105
Internal Medicine
301 S FAIR OAKS AVE, STE 107
PASADENA, CA 91105

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508948787, enumerated as an "organization" on October 19, 2006.

The provider is located at 301 S FAIR OAKS AVE #106 PASADENA, CA 91105 and the phone number is (626) 440-0099.

Clinic/Center with taxonomy code 261QA1903X and a focus in Ambulatory Surgical.