SIGNATURE MEDICAL CLINICS INC
NPI 1942436548
Urology in Los Angeles, CA

Q: What is Signature Medical Clinics Inc's NPI number?

The NPI number for Signature Medical Clinics Inc is 1942436548. It was assigned to this organization in the NPPES registry on June 9, 2009. The provider is doing business as Urology Group of Southern California. The provider was formerly known as John J. Kowalczyk, D.O., Inc..

Q: What is Signature Medical Clinics Inc's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Active since June 09, 2009CLIA 05D0542929 · Waiver

1127 WILSHIRE BLVD, SUITE 805, LOS ANGELES, CA 90017(213) 977-1176(213) 977-0668 Get Directions Write a Review

NPPES record last updated: September 6, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 6, 2024, Feb 27, 2020, Mar 17, 2016 (3 updates tracked since 2016).

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About Signature Medical Clinics Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SIGNATURE MEDICAL CLINICS INC (NPI 1942436548), doing business as John J. Kowalczyk, D.o., Inc., is a healthcare organization registered as an urology in Los Angeles, California and active in the NPI registry since June 2009. The organization holds a CLIA Waiver certificate valid through August 31, 2026, maintains a secondary practice location in Burbank, and lists John James Kowalczyk, President, as its authorized official.

NPPES Registry Identity

NPI1942436548

Entity TypeOrganization

Primary Taxonomy208800000X

Legal Business NameSIGNATURE MEDICAL CLINICS INC

Location Address1127 WILSHIRE BLVD, SUITE 805Los Angeles, CA 90017-3901

Mailing Address1127 Wilshire Blvd Ste 805Los Angeles, CA 90017-3909 · (213) 977-1176 · Fax (213) 977-0668

Phone(213) 977-1176

Fax(213) 977-0668

Organization SubpartNo

Authorized OfficialJohn James KowalczykPresident · (213) 212-4310

Enumeration DateJune 9, 2009

Last NPPES UpdateSeptember 6, 20243 updates tracked since enumeration

NPPES CertifiedSeptember 6, 2024

✔ NPI 1942436548 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

1127 WILSHIRE BLVD, Los Angeles, CA 90017

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Other Names 2

Former Legal Business NameJohn J. Kowalczyk, D.o., Inc.

Doing Business AsUrology Group Of Southern California

Secondary Practice Location 1

Location 12211 W Magnolia Blvd Ste 260Burbank, CA 91506-1770 · Phone (213) 977-1176 · Fax (213) 977-0668

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0542929

Signature Medical Clinics, Inc · Los Angeles, CA

Active · expires Aug 31, 2026

CLIA Number05D0542929

Laboratory TypePhysician Office

Certificate Effective DateSeptember 1, 2024

Certificate Expiration DateAugust 31, 2026

Laboratory DirectorJohn J. Kowalczyk

Laboratory Phone(213) 977-1176

Laboratory LocationSignature Medical Clinics, Inc1127 Wilshire Blvd Ste 1618, Los Angeles, CA 90017

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LAU DENTAL GROUP

Dentist (General Practice)

1127 WILSHIRE BLVD, SUITE #1608
LOS ANGELES, CA 90017

Los Angeles County (213) 481-1100

DR. ADELAIDA T QUINGCO DDS

Dentist (General Practice)

1127 WILSHIRE BLVD, SUITE 1103
LOS ANGELES, CA 90017

Los Angeles County (213) 250-3998

RACHAEL LYNN CAYCE MD

Dermatology

1127 WILSHIRE BLVD, STE 600
LOS ANGELES, CA 90017

Los Angeles County (213) 278-0021

DR. OTHELLA THERESA OWENS MD

Otolaryngology (Plastic Surgery within the Head & Neck)

1127 WILSHIRE BLVD, SUITE 1604
LOS ANGELES, CA 90017

Los Angeles County (213) 250-5470

DR. ARLIENE O YAP M.D.

Specialist

1127 WILSHIRE BLVD, SUITE 507
LOS ANGELES, CA 90017

Los Angeles County (213) 380-4604

WILSHIRE CENTER FOR AMBULATORY SURGERY, INC.

Clinic/Center (Ophthalmologic Surgery)

1127 WILSHIRE BLVD, SUITE 1515
LOS ANGELES, CA 90017

Los Angeles County (213) 250-7243

SAN CRISTOBAL MEDICAL GROUP, INC

Pain Medicine (Interventional Pain Medicine)

1127 WILSHIRE BLVD, STE 820
LOS ANGELES, CA 90017

Los Angeles County (213) 413-4203

UNITED MEDICAL RADIOLOGY NETWORK

Clinic/Center (Radiology)

1127 WILSHIRE BLVD, # 100
LOS ANGELES, CA 90017

Los Angeles County (213) 202-5785

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Signature Medical Clinics Inc's NPI number?

The NPI number for Signature Medical Clinics Inc is 1942436548. It was assigned to this organization in the NPPES registry on June 9, 2009. The provider is doing business as Urology Group of Southern California. The provider was formerly known as John J. Kowalczyk, D.O., Inc..

Where is Signature Medical Clinics Inc located?

Signature Medical Clinics Inc is located at 1127 Wilshire Blvd Suite 805, Los Angeles, CA 90017. The listed phone number is (213) 977-1176.

What is Signature Medical Clinics Inc's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Does Signature Medical Clinics Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0542929) is associated with this NPI, valid through August 31, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Signature Medical Clinics Inc was last updated on September 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.