LAKESIDE OB/GYN, S.C.
NPI 1891707873
Obstetrics & Gynecology in Milwaukee, WI

NPI Status: Active since August 11, 2006

Contact Information

2524 E WEBSTER PL
SUITE 303
MILWAUKEE, WI
ZIP 53211
Phone: (414) 271-1116

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  • Organization
  • Obstetrics & Gynecology
  • CLIA Number: 52D0390467
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 08-31-2026

About LAKESIDE OB/GYN, S.C.

This page provides the complete NPI Profile along with additional information for Lakeside Ob/gyn, S.c., a women's health care provider established in Milwaukee, Wisconsin operating as a Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1891707873 assigned on August 2006. The practitioner's primary taxonomy code is 207V00000X with license number 33771-020 (WI). The provider is registered as an organization and their NPI record was last updated 19 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Kathleen Mary Trebian M.d. (President/owner)

NPI
1891707873
Provider Name
LAKESIDE OB/GYN, S.C.
Entity Type
Organization
Location Address
2524 E WEBSTER PL SUITE 303 MILWAUKEE, WI 53211
Location Phone
(414) 271-1116
Mailing Address
2524 E WEBSTER PLACE SUITE 303 MILWAUKEE, WI 53211
Mailing Phone
(414) 271-1116
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-11-2006
Last Update Date
11-27-2007
Code Navigator

Women's health care providers like Lakeside Ob/gyn, S.c. treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

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

Obstetrics & Gynecology

Taxonomy Code
207V00000X
Type
Allopathic & Osteopathic Physicians
License No.
33771-020
License State
WI
Taxonomy Description
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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. KATHLEEN MARY TREBIAN M.D.

Authorized Official Title
PRESIDENT/OWNER
Authorized Official Phone
(414) 271-1116

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
52D0390467
Facility Type
Physician Office
Certificate Effective Date
September 01, 2024
Certificate Expiration Date
August 31, 2026
Laboratory Director
KATHLEEN M. TREBIAN, MD
Certificate Type
Certificate for Provider-Performed Microscopy Procedures (PPMP)
Certificate Type Description
This CLIA certificate is issued to Lakeside Ob/gyn, S.c. in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.

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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 1891707873, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
0
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
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 9 → 18 → 9 7 → 14 → 5 7 → 14 → 5 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 + 8 + 1 + 1 + 4 + 0 + 1 + 4 + 8 + 1 + 4 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1891707873.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Pediatrics
2524 E WEBSTER PL, STE 301
MILWAUKEE, WI 53211
Pediatrics
2524 E WEBSTER PL, STE 301
MILWAUKEE, WI 53211
Pediatrics
2524 E WEBSTER PL, ST #301
MILWAUKEE, WI 53211
Pediatrics
2524 E WEBSTER PL, #301
MILWAUKEE, WI 53211
Pediatrics
2524 E WEBSTER PL, #301
MILWAUKEE, WI 53211
Pediatrics
2524 E WEBSTER PL, #301
MILWAUKEE, WI 53211
Psychologist
2524 E WEBSTER PL, SUITE 203
MILWAUKEE, WI 53211
Pediatrics
2524 E WEBSTER PL, SUITE 301
MILWAUKEE, WI 53211
Social Worker
2524 E WEBSTER PL, SUITE 203
MILWAUKEE, WI 53211
Counselor (Professional)
2524 E WEBSTER PL, SUITE 203
MILWAUKEE, WI 53211
Clinical Nurse Specialist (Psychiatric/Mental Health, Adult)
2524 E WEBSTER PL, SUITE 203
MILWAUKEE, WI 53211
Pediatrics
2524 E WEBSTER PL, SUITE 301
MILWAUKEE, WI 53211
Social Worker (Clinical)
2524 E WEBSTER PL
MILWAUKEE, WI 53211
Social Worker
2524 E WEBSTER PL
MILWAUKEE, WI 53211
Counselor (Professional)
2524 E WEBSTER PL
MILWAUKEE, WI 53211
Counselor (Professional)
2524 E WEBSTER PL
MILWAUKEE, WI 53211
Counselor (Professional)
2524 E WEBSTER PL
MILWAUKEE, WI 53211
Counselor (Professional)
2524 E WEBSTER PL
MILWAUKEE, WI 53211
Psychologist
2524 E WEBSTER PL, SUITE 203
MILWAUKEE, WI 53211

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891707873, enumerated as an "organization" on August 11, 2006.

The provider is located at 2524 E WEBSTER PL SUITE 303 MILWAUKEE, WI 53211 and the phone number is (414) 271-1116.

Obstetrics & Gynecology with taxonomy code 207V00000X.