PREMISE HEALTH OF CALIFORNIA MEDICAL PC
NPI 1053953455
Clinic/Center - Multi-Specialty in Concord, CA

NPI Status: Active since October 17, 2019

Contact Information

1850 GATEWAY BLVD
CONCORD, CA
ZIP 94520
Phone: (925) 459-7207
Fax: (925) 270-2397

Get Directions Write a Review

  • Organization
  • Clinic/Center
  • Multi-Specialty

About PREMISE HEALTH OF CALIFORNIA MEDICAL PC

This page provides the complete NPI Profile along with additional information for Premise Health Of California Medical Pc, a provider established in Concord, California operating as a Clinic/center, focusing in multi-specialty . The healthcare provider is registered in the NPI registry with number 1053953455 assigned on October 2019. The practitioner's primary taxonomy code is 261QM1300X. 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. Jon Leizman Md (President)

NPI
1053953455
Provider Legal Name
PREMISE HEALTH OF CALIFORNIA MEDICAL PC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
1850 GATEWAY BLVD CONCORD, CA 94520
Location Phone
(925) 459-7207
Location Fax
(925) 270-2397
Mailing Address
5500 MARYLAND WAY STE 120 BRENTWOOD, TN 37027
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
10-17-2019
Last Update Date
10-16-2025
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 Multi-Specialty

Taxonomy Code
261QM1300X
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. JON LEIZMAN MD

Authorized Official Title
PRESIDENT
Authorized Official Phone
(216) 479-9063

Reviews for PREMISE HEALTH OF CALIFORNIA MEDICAL PC

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1053953455, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
0
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
3
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
5
Unchanged
Pos 7
3
Doubled → 6
Pos 8
4
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
5
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 5 → 10 → 1 9 → 18 → 9 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 0 + 3 + 1 + 8 + 5 + 6 + 4 + 1 + 0 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1053953455.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Social Worker
1850 GATEWAY BLVD
CONCORD, CA 94520
Counselor (Addiction (Substance Use Disorder))
1850 GATEWAY BLVD, SUITE 900
CONCORD, CA 94520
Licensed Vocational Nurse
1850 GATEWAY BLVD
CONCORD, CA 94520
Clinic/Center (Multi-Specialty)
1850 GATEWAY BLVD
CONCORD, CA 94520
Nurse Practitioner (Family)
1850 GATEWAY BLVD
CONCORD, CA 94520

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1053953455, enumerated as an "organization" on October 17, 2019.

The provider is located at 1850 GATEWAY BLVD CONCORD, CA 94520 and the phone number is (925) 459-7207.

Clinic/Center with taxonomy code 261QM1300X and a focus in Multi-Specialty.