IFEANYI OBIANYO ONWUSI
NPI 1003751835
Peer Specialist in San Francisco, CA

NPI Status: Active since April 20, 2026

Contact Information

1360 MISSION ST
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 579-3021

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  • Individual
  • Male
  • Peer Specialist

About IFEANYI ONWUSI

This page provides the complete NPI Profile along with additional information for Ifeanyi Onwusi, a provider established in San Francisco, California with a medical specialization in Peer Specialist. The healthcare provider is registered in the NPI registry with number 1003751835 assigned on April 2026. The practitioner's primary taxonomy code is 175T00000X with license number MPSS-RIBTOA (CA). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1003751835
Provider Name
IFEANYI OBIANYO ONWUSI
Gender
Male
Entity Type
Individual
Location Address
1360 MISSION ST SAN FRANCISCO, CA 94103
Location Phone
(415) 579-3021
Mailing Address
115 10TH ST SAN FRANCISCO, CA 94103
Is Sole Proprietor?
No
Enumeration Date
04-20-2026
Last Update Date
04-20-2026
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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

Peer Specialist

Taxonomy Code
175T00000X
Type
Other Service Providers
License No.
MPSS-RIBTOA
License State
CA
Taxonomy Description
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

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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 1003751835, 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
0
Doubled → 0
Pos 4
3
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
5
Unchanged
Pos 7
1
Doubled → 2
Pos 8
8
Unchanged
Pos 9
3
Doubled → 6
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 0 → 0 7 → 14 → 5 1 → 2 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 1 + 4 + 5 + 2 + 8 + 6 + 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 1003751835.

Other Providers at the Same Location


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

Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Counselor
1360 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Clinic/Center (Mental Health (Including Community Mental Health Center))
1360 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Specialist/Technologist, Other (Biostatistician)
1360 MISSION ST, SUITE 401
SAN FRANCISCO, CA 94103
Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Specialist
1360 MISSION ST
SAN FRANCISCO, CA 94103
Specialist
1360 MISSION ST
SAN FRANCISCO, CA 94103
Specialist
1360 MISSION ST
SAN FRANCISCO, CA 94103
Case Manager/Care Coordinator
1360 MISSION ST
SAN FRANCISCO, CA 94103
Case Manager/Care Coordinator
1360 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1360 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1360 MISSION ST
SAN FRANCISCO, CA 94103
Student in an Organized Health Care Education/Training Program
1360 MISSION ST
SAN FRANCISCO, CA 94103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1003751835, enumerated as an "individual" on April 20, 2026.

The provider is located at 1360 MISSION ST SAN FRANCISCO, CA 94103 and the phone number is (415) 579-3021.

Peer Specialist with taxonomy code 175T00000X.