DR. FRANK EUGENE STAGGERS JR. M.D.
NPI 1841411378
Preventive Medicine - Public Health & General Preventive Medicine in Hayward, CA

NPI Status: Active since May 01, 2007

Contact Information

795 FLETCHER LANE
HAYWARD, CA
ZIP 94554
Phone: (510) 247-8300
Fax: (510) 247-8295

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  • Individual
  • Male
  • Preventive Medicine
  • Public Health & General Preventive Medic...

About FRANK STAGGERS

This page provides the complete NPI Profile along with additional information for Frank Staggers, a provider established in Hayward, California with a medical specialization in Preventive Medicine, focusing in public health & general preventive medicine . The healthcare provider is registered in the NPI registry with number 1841411378 assigned on May 2007. The practitioner's primary taxonomy code is 2083P0901X with license number A40525 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1841411378
Provider Name
DR. FRANK EUGENE STAGGERS JR. M.D.
Gender
Male
Entity Type
Individual
Location Address
795 FLETCHER LANE HAYWARD, CA 94554
Location Phone
(510) 247-8300
Location Fax
(510) 247-8295
Mailing Address
75 ANAIR WAY OAKLAND, CA 94605
Mailing Phone
(510) 635-1273
Is Sole Proprietor?
Yes
Enumeration Date
05-01-2007
Last Update Date
09-11-2025
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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

Preventive Medicine Public Health & General Preventive Medicine

Taxonomy Code
2083P0901X
Type
Allopathic & Osteopathic Physicians
License No.
A40525
License State
CA
Taxonomy Description
Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12084A0401XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Addiction Medicine

A40525 (CA)

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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 1841411378, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
1
Unchanged
Pos 7
1
Doubled → 2
Pos 8
3
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
8
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 4 → 8 4 → 8 1 → 2 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 + 8 + 1 + 8 + 1 + 2 + 3 + 1 + 4 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1841411378.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841411378, enumerated as an "individual" on May 01, 2007.

The provider is located at 795 FLETCHER LANE HAYWARD, CA 94554 and the phone number is (510) 247-8300.

Preventive Medicine with taxonomy code 2083P0901X and a focus in Public Health & General Preventive Medicine.