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GERALD A. COX II MD, MPH
NPI 1477041333
Internal Medicine - Obesity Medicine in Lakewood, CA

Active since April 26, 2018PECOS EnrolledAccepts Medicare Assignment
5750 DOWNEY AVE STE 303, LAKEWOOD, CA 90712(657) 708-0074 Get Directions Write a Review

NPPES record last updated: February 20, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 20, 2025, Oct 27, 2023, Jun 18, 2023 and 2 more (5 updates tracked since 2018).

About Gerald A. Cox Ii Md, Mph NPPES

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

GERALD A. COX II MD, MPH (NPI 1477041333) is an individual obesity medicine provider in Lakewood, California, licensed in California (A1735559) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1477041333
Entity TypeIndividualMale
Primary Taxonomy207RB0002X
Provider Legal NameGERALD A. COX IICredential: MD, MPH
Location Address5750 DOWNEY AVE STE 303Lakewood, CA 90712-1477
Mailing Address5750 Downey Ave Ste 303Lakewood, CA 90712-1477
Phone(657) 708-0074
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 26, 2018
Last NPPES UpdateFebruary 20, 20255 updates tracked since enumeration
NPPES CertifiedFebruary 20, 2025
✔ NPI 1477041333 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Obesity MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RB0002X
License✔ Licensed in CA · A1735559
Definition
An internal medicine physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.
Also ListedInternal MedicineTaxonomy 207R00000X · License MTL-2023-007 (GU)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
5750 DOWNEY AVE STE 303, Lakewood, CA 90712
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gerald A. Cox Ii Md, Mph is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1254790348
PECOS Enrollment IDI20231228000846
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Gerald Cox reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mirror Health Specialists
Same address
Internal Medicine
5750 DOWNEY AVE STE 303
Lakewood, CA 90712
  • Reassigned Medicare billing, California enrollment
NPI 1144026410 (657) 708-0074
Southern California Permanente Medical Group
26 mi
Clinical Medical Laboratory
13000 PEYTON DR
Chino Hills, CA 91709
  • Reassigned Medicare billing, California enrollment
  • 5,228 clinicians in this Medicare group
NPI 1396287082 (888) 750-0036
General Conference Corp Of Sda
Clinic/Center
388 YPAO RD
Tamuning, GU 96913
  • Reassigned Medicare billing, Guam enrollment
  • 105 clinicians in this Medicare group
NPI 1275586877 (671) 646-8881

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 4

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

MIRROR HEALTH SPECIALISTS
Internal Medicine
5750 DOWNEY AVE STE 303
LAKEWOOD, CA 90712
Los Angeles County (657) 708-0074
CONRAD A. COX, M.D . INC.
Internal Medicine (Gastroenterology)
5750 DOWNEY AVE STE 303
LAKEWOOD, CA 90712
Los Angeles County (562) 461-8584
PROHEALTH PARTNERS A MEDICAL GROUP INC
Internal Medicine (Gastroenterology)
5750 DOWNEY AVE STE 303
LAKEWOOD, CA 90712
Los Angeles County (562) 461-8584
CONRAD A. COX M.D.
Internal Medicine (Gastroenterology)
5750 DOWNEY AVE STE 303, ATTENTION: ANTOINETTE M. COX
LAKEWOOD, CA 90712
Los Angeles County (562) 461-8584

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 Gerald Cox's NPI number?

The NPI number for Gerald Cox is 1477041333. It was assigned to this individual provider in the NPPES registry on April 26, 2018.

Where is Gerald Cox located?

Gerald Cox practices at 5750 Downey Ave Ste 303, Lakewood, CA 90712. The listed phone number is (657) 708-0074.

What is Gerald Cox's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Obesity Medicine, with taxonomy code 207RB0002X.

Is Gerald Cox enrolled in Medicare?

Yes. Gerald Cox is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Gerald Cox's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gerald Cox reassigns Medicare benefits to 3 organizations: Mirror Health Specialists (Lakewood, CA), Southern California Permanente Medical Group (Chino Hills, CA) and General Conference Corp Of Sda (Tamuning, GU). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gerald Cox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gerald Cox was last updated on February 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.