NPI Portal NPI Lookup & Verification

Internal Medicine in Hayward, CA

78 active Internal Medicine providers practice in Hayward, California according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Internal Medicine providers in Hayward, CA
NPI Name Type Specialty Location
1881772648 Abubakr Asadulla Individual Internal Medicine Physician Hayward, CA
1528264686 Adam Regelmann Individual Internal Medicine Physician Hayward, CA
1134263817 Advanced Integrated Medical Group Organization Internal Medicine Physician Hayward, CA
1972681716 Aida Li Individual Internal Medicine Physician Hayward, CA
1316025166 Allen Chiu Individual Internal Medicine Physician Hayward, CA
1740354059 Andrea Yao Individual Nephrology Physician Hayward, CA
1922297514 California Cardiovascular Consultants Medical Associates Organization Internal Medicine Physician Hayward, CA
1952473761 Candace Kirsch Individual Cardiovascular Disease Physician Hayward, CA
1073691846 Chitra Reddy Individual Nephrology Physician Hayward, CA
1780621706 Clifford Wong Individual Nephrology Physician Hayward, CA
1245318096 Daniel Klein Individual Infectious Disease Physician Hayward, CA
1659459410 David Anderson Individual Internal Medicine Physician Hayward, CA
1962527952 Diane Sun Individual Internal Medicine Physician Hayward, CA
1649207523 Eric Kohleriter Individual Internal Medicine Physician Hayward, CA
1598898330 Evelyn E. Li, M.D., A Professional Corporation Organization Cardiovascular Disease Physician Hayward, CA
1295800365 Frank Hsu Individual Endocrinology, Diabetes & Metabolism Physician Hayward, CA
1457320673 Generoso Porciuncula Individual Internal Medicine Physician Hayward, CA
1043398803 George Lai Individual Nephrology Physician Hayward, CA
1124106976 Gerald Frank Individual Internal Medicine Physician Hayward, CA
1073792172 Gerald Myint Individual Internal Medicine Physician Hayward, CA
1164500682 Gopala Kolluru Individual Cardiovascular Disease Physician Hayward, CA
1154495760 Grant Goodman Individual Hematology & Oncology Physician Hayward, CA
1386722148 Howard Kleckner Individual Hematology & Oncology Physician Hayward, CA
1366431348 Ivan Lee Individual Internal Medicine Physician Hayward, CA
1831277698 Jean-Paul Motamedi Individual Internal Medicine Physician Hayward, CA
1861566184 Jennifer Klein Individual Internal Medicine Physician Hayward, CA
1720282932 John Bell Individual Internal Medicine Physician Hayward, CA
1043414246 Jonas Masikat Individual Internal Medicine Physician Hayward, CA
1275578015 Kaarel Kaljot Individual Internal Medicine Physician Hayward, CA
1225116080 Kathleen Collins Individual Cardiovascular Disease Physician Hayward, CA
1952489452 Lara Salamacha Individual Sports Medicine (Internal Medicine) Physician Hayward, CA
1235207945 Maina R Shetty MD Inc Organization Internal Medicine Physician Hayward, CA
1639183361 Maina Shetty Individual Internal Medicine Physician Hayward, CA
1730248196 Mark Finch Individual Infectious Disease Physician Hayward, CA
1659351930 Mark Khoo Individual Internal Medicine Physician Hayward, CA
1760560510 Maurice Franco Individual Critical Care Medicine (Internal Medicine) Physician Hayward, CA
1871671636 Michael Jensen-Akula Individual Hematology & Oncology Physician Hayward, CA
1275636276 Michael Marchiano Individual Internal Medicine Physician Hayward, CA
1063479269 Min-Shong Chang Individual Internal Medicine Physician Hayward, CA
1639118052 Neelam Bhalla Individual Nephrology Physician Hayward, CA
1528146396 Neil Handelman Individual Internal Medicine Physician Hayward, CA
1174605158 Nirmala Kannan M.D. A Professional Corporation Organization Internal Medicine Physician Hayward, CA
1306925680 Nirmala Kannan, M.D. Organization Internal Medicine Physician Hayward, CA
1528056389 Qaiser Niaz Individual Hematology & Oncology Physician Hayward, CA
1497880801 Queelan Ratnesar Individual Internal Medicine Physician Hayward, CA
1134156912 Ralph Boucher Individual Cardiovascular Disease Physician Hayward, CA
1164550018 Robert Lake Individual Internal Medicine Physician Hayward, CA
1639192404 Sammy Hung Individual Pulmonary Disease Physician Hayward, CA
1477631232 Sarasa Kimata Individual Nephrology Physician Hayward, CA
1255419008 Soma Mandal Individual Internal Medicine Physician Hayward, CA

Frequently asked questions

How many Internal Medicine providers are in Hayward, CA?
The latest NPPES snapshot lists 78 active Internal Medicine providers with a practice address in Hayward, California.
How do I check a Internal Medicine provider's NPI in Hayward?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-10.