Internal Medicine - Geriatric Medicine Providers in Mather, CA
Browse 2 Internal Medicine - Geriatric Medicine providers listed in NPPES with a practice address in Mather, California.
How Mather compares with the U.S.
2 active clinicians in Internal Medicine - Geriatric Medicine list a practice address in Mather, CA in the NPI registry.
Mather has fewer than 10,000 residents, so rates per 100,000 people change a lot with each clinician and are not compared here.
None of the clinicians in Internal Medicine - Geriatric Medicine in Mather are listed in the CMS Medicare file.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@t-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of November 2026.
Dr. John Haile Peters , MD
Internal Medicine - Geriatric Medicine
Dr. Randall M. Goethals , MD
Internal Medicine - Geriatric Medicine
Frequently Asked Questions about Internal Medicine - Geriatric Medicine in Mather
Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.
This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.
Internal Medicine - Geriatric Medicine Providers in Other California Cities
Cities with the most listed practitioners first.