Organization provider

CC SOUTHBAY MEDICAL ASSOCIATES

Internal Medicine Physician Mental Health Clinic/Center (Including Community Mental Health Center) Cardiovascular Disease Physician

CC SOUTHBAY MEDICAL ASSOCIATES is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1639053036, based in Torrance, CA. The organization lists 11 taxonomy classifications, with Primary Care Clinic/Center recorded as primary.

Getting there

The practice address on file is 3655 LOMITA BLVD STE 421, Torrance, CA 90505. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

3655 LOMITA BLVD STE 421, Torrance, CA 90505 Open in Google Maps →

Credentials and Medicare

State licence

NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.

Medicare (PECOS)

This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.

What Primary Care covers

Definition to come... NUCC Health Care Provider Taxonomy, code 261QP2300X
Ambulatory Health Care Facilities Clinic/Center Primary Care

All registered taxonomy codes

This provider registers 11 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207R00000X Internal Medicine Physician
261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Mental Health (Including Community Mental Health Center)
207RC0000X Cardiovascular Disease Physician Cardiovascular Disease
261QP2000X Physical Therapy Clinic/Center Physical Therapy
208D00000X General Practice Physician
261QM0850X Adult Mental Health Clinic/Center Adult Mental Health
208000000X Pediatrics Physician
261QH0700X Hearing and Speech Clinic/Center Hearing and Speech
363L00000X Nurse Practitioner
261QM1300X Multi-Specialty Clinic/Center Multi-Specialty
261QP2300X Primary Care Clinic/Center Primary Care primary

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.

NPI1639053036 valid check digit
Entity typeOrganization (NPI-2)
Enumeration dateJul 31, 2025
Last updatedJun 25, 2026
StatusActive
Practice address 3655 LOMITA BLVD STE 421
Torrance, CA 90505
(562) 316-6555
This record was updated on Jun 25, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1639053036 passes the NPI check digit test The final digit 6 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 6 3 9 0 5 3 0 3
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 6 9 0 5 6 0 6

Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1639053036?
NPI 1639053036 is the National Provider Identifier assigned to CC SOUTHBAY MEDICAL ASSOCIATES in Torrance, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Primary Care cover?
Definition to come...
How do I contact CC SOUTHBAY MEDICAL ASSOCIATES?
The phone number on file with NPPES is (562) 316-6555, last updated Jun 25, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Is NPI 1639053036 a valid number?
Yes. 1639053036 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.