PORTOLA MEDICAL SERVICES PC
NPI 1871962076
Clinic/Center - Urgent Care in Lake Forest, CA

NPI Status: Active since September 17, 2015

Contact Information

29100 PORTOLA PKWY
SUITE B
LAKE FOREST, CA
ZIP 92630
Phone: (844) 254-6382
Fax: (331) 442-4902

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  • Organization
  • Clinic/Center
  • Urgent Care
  • CLIA Number: 05D2325414
  • CLIA Cert. Type: Other - URGENT CARE
  • CLIA Exp. Date: 06-10-2027

About PORTOLA MEDICAL SERVICES PC

This page provides the complete NPI Profile along with additional information for Portola Medical Services Pc, a provider established in Lake Forest, California operating as a Clinic/center, focusing in urgent care . The healthcare provider is registered in the NPI registry with number 1871962076 assigned on September 2015. The practitioner's primary taxonomy code is 261QU0200X. The provider is registered as an organization and their NPI record was last updated one year ago. The provider's . The authorized official of this NPI record is Dr. Matthew A Zeller Do (Ceo)

NPI
1871962076
Provider Legal Name
PORTOLA MEDICAL SERVICES PC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
29100 PORTOLA PKWY SUITE B LAKE FOREST, CA 92630
Location Phone
(844) 254-6382
Location Fax
(331) 442-4902
Mailing Address
29100 PORTOLA PKWY SUITE B LAKE FOREST, CA 92630
Mailing Phone
(844) 254-6382
Mailing Fax
(331) 442-4902
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-17-2015
Last Update Date
04-17-2025
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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 Urgent Care

Taxonomy Code
261QU0200X
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

DR. MATTHEW A ZELLER DO

Authorized Official Title
CEO
Authorized Official Phone
(949) 813-9728

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
05D2325414
Facility Type
Other - URGENT CARE
Certificate Effective Date
June 11, 2025
Certificate Expiration Date
June 10, 2027
Laboratory Director
MATTHEW A. ZELLER
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Portola Medical Services Pc 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 1871962076, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
8
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
1
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
6
Unchanged
Pos 7
2
Doubled → 4
Pos 8
0
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 7 → 14 → 5 9 → 18 → 9 2 → 4 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 1 + 8 + 6 + 4 + 0 + 1 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1871962076.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1871962076, enumerated as an "organization" on September 17, 2015.

The provider is located at 29100 PORTOLA PKWY SUITE B LAKE FOREST, CA 92630 and the phone number is (844) 254-6382.

Clinic/Center with taxonomy code 261QU0200X and a focus in Urgent Care.