Signature Medical Clinics Inc
NPI 1942436548 · Urology Physician · Los Angeles, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Signature Medical Clinics Inc is a Urology Physician organization in Los Angeles, CA (NPI 1942436548).
Provider details
- NPI number
- 1942436548
- Entity type
- Organization
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- John Kowalczyk, President(213) 212-4310
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Former legal business name
- John J. Kowalczyk, D.O., Inc.
- Doing business as
- Urology Group of Southern California
Additional practice locations (1)
- 2211 W Magnolia Blvd Ste 260Burbank, CA 91506-1770Phone: (213) 977-1176Fax: (213) 977-0668
Registry dates
- Enumerated
- 2009-06-09
- Last updated
- 2024-09-06
- Certified
- 2024-09-06
Frequently asked questions
- What is Signature Medical Clinics Inc's NPI number?
- Signature Medical Clinics Inc's National Provider Identifier (NPI) is 1942436548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Signature Medical Clinics Inc?
- Signature Medical Clinics Inc is classified in the NPPES registry as Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Signature Medical Clinics Inc located?
- Signature Medical Clinics Inc's practice location on file with NPPES is 1127 Wilshire Blvd, Los Angeles, CA 90017-3901.
- What is Signature Medical Clinics Inc's phone number?
- The practice phone number listed in the NPPES registry for Signature Medical Clinics Inc is (213) 977-1176.
- Does Signature Medical Clinics Inc accept Medicare?
- Signature Medical Clinics Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Signature Medical Clinics Inc?
- The authorized official listed on Signature Medical Clinics Inc's NPPES record is John Kowalczyk, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Signature Medical Clinics Inc's NPI active?
- Yes — Signature Medical Clinics Inc's NPI (1942436548) is active in the NPPES registry as of the last update on 2024-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.