facebook tracking Internal medicine doctors in Ontario, CA (128 doctors)

Internal medicine doctors in Ontario, CA

128 Medicare-enrolled internal medicine doctors practice in Ontario. The hospital they most often list is Kaiser Foundation Hospital Fontana. Filter by Medicare acceptance, telehealth or hospital below.

Also in Ontario Family doctors Ophthalmologists Orthopedic surgeons Podiatrists Psychiatrists All doctors
Internal medicine doctors128practicing in Ontario
Accept Medicare97%124 of 128; 4 more may
Offer telehealth14%18 internal medicine doctors
Typical experience19 yrs46 women, 82 men

Hospitals they work with

Largest practices

  • Southern California Permanente Medical Group110
  • California Kidney Specialists2
  • Universal Multispecialty Medical Group Inc2
  • Pomona Community Health Center2

Every internal medicine doctor in Ontario

Binny Abraham, MD

Internal Medicine21 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment Medical College Of Wisconsin

Hospital affiliations

NPI 1760657647

Dorcas C. Ang, MD

Internal Medicine28 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment Telehealth Loma Linda University School Of Medicine

Hospital affiliations

NPI 1508914417

Rajeev Attam, MD

Internal Medicine32 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1184694309

Vahid M. Berdjis, MD

Internal Medicine23 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1245443175

Samit J. Bhakta, MD

Internal Medicine16 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1568752012

Saida Z. Bhatia, MD

Internal Medicine33 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment University Of California, Geffen School Of Medicine

Hospital affiliations

NPI 1619092129

Christine K. Bui, DO

Internal Medicine12 years in practice

Unicare Community Health Center, Inc.

1151 E Walnut St, Ontario, CA 91761

(909) 467-1425
Accepts Medicare assignment Lake Erie College Of Osteopathic Medicine, Erie

Hospital affiliations

None listed with Medicare

NPI 1285095752

Ian C. Casimiro, MD

Internal Medicine18 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1881857969

David Chen, MD

Internal Medicine24 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment Saint Louis University School Of Medicine

Hospital affiliations

NPI 1982634788

David P. Chen, MD

Internal Medicine11 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1417279993

Frank W. Chen, MD

Internal Medicine12 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment Stanford University School Of Medicine

Hospital affiliations

NPI 1174940357

Paula S. Cho, MD

Internal Medicine27 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment R Franklin University Of Med & Sci/Chicago Medical School

Hospital affiliations

NPI 1245399906

Brandon E. Chock, MD

Internal Medicine20 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment Telehealth University Of Southern California Keck School Of Medicine

Hospital affiliations

NPI 1669667523

Johnathan Chou, MD

Internal Medicine13 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment Loma Linda University School Of Medicine

Hospital affiliations

NPI 1043621691

Rebecca D. Chou, MD

Internal Medicine7 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1326507146

Jeffrey Chow, DO

Internal Medicine5 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment Campbell Univ School Of Osteopathic Medicine

Hospital affiliations

NPI 1285124222

Jeff S. Chuang, MD

Internal Medicine18 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment Berkeley Northeastern State University - College Of Medicine

Hospital affiliations

NPI 1033379425

Andy Chuu, MD

Internal Medicine11 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1639565286

Suhani H. Dalal, DO

Internal Medicine5 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1760061741

Quang M. Dao, MD

Internal Medicine21 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1720200470

Sheena Dhadwal, DO

Internal Medicine10 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1700240801

Bao K. Do, MD

Internal Medicine28 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment University Of Arizona College Of Medicine

Hospital affiliations

NPI 1477612091

Joseph Doughten, MD

Internal Medicine9 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1902326267

Pooneh Esfahani, DO

Internal Medicine28 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1821146804

Arash Faghieh, MD

Internal Medicine28 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment University Of Texas Medical School At San Antonio

Hospital affiliations

NPI 1598813545

Emily A. Fritzmann, MD

Internal Medicine8 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1679060107

Frances Gerard Genil, MD

Internal Medicine15 years in practice

Friends Of Family Health Center

1129 W 4Th St, Ontario, CA 91762

(909) 363-9300
Accepts Medicare assignment

Hospital affiliations

None listed with Medicare

NPI 1215670153

Dat Ha, DO

Internal Medicine16 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

None listed with Medicare

NPI 1972812287

Alexander K. Han, MD

Internal Medicine21 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1790967743

Alireza Heshmat, MD

Internal Medicine24 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1922358415

Jessica Hong

Internal Medicine8 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment

Hospital affiliations

NPI 1013304880

Patricia C. Hsia, MD

Internal Medicine41 years in practice

Southern California Permanente Medical Group

2295 S Vineyard Ave, Ontario, CA 91761

(909) 724-5000
Accepts Medicare assignment State University Of New York At Buffalo School Of Medicine

Hospital affiliations

None listed with Medicare

NPI 1174694087

No internal medicine doctor here matches those filters.

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Other doctors in Ontario

Family doctors61 Ophthalmologists21 Orthopedic surgeons20 Podiatrists19 Psychiatrists16 OB-GYNs15 General surgeons14 Urologists13 ENT doctors10 Neurologists9 Nephrologists8 Physical medicine and rehabilitation doctors7 Radiation oncologists7 Psychologists7 Cardiologists7 Plastic surgeons5

Internal medicine doctors elsewhere in California

Los Angeles (1152) San Francisco (909) San Diego (768) Sacramento (751) San Jose (454) Santa Monica (422) Fresno (361) Oakland (352) Stockton (319) Riverside (308) Stanford (307) Anaheim (305)

Questions about internal medicine doctors in Ontario

How many internal medicine doctors are in Ontario, CA?

128 Medicare-enrolled internal medicine doctors practice in Ontario according to CMS. The largest groups are Southern California Permanente Medical Group (110), California Kidney Specialists (2), Universal Multispecialty Medical Group Inc (2).

Which hospitals do Ontario internal medicine doctors work with?

The hospitals Ontario internal medicine doctors most often list as an affiliation are Kaiser Foundation Hospital Fontana (96), San Antonio Community Hospital (4), Casa Colina Hospital (3), Pomona Valley Hospital Medical Center (3). An affiliation usually means the doctor can treat or admit patients there.

Do these internal medicine doctors accept Medicare?

All are enrolled in Medicare. 124 of 128 accept Medicare assignment, meaning they take the Medicare-approved amount as full payment for covered services, and 4 may accept it case by case. 18 offer telehealth visits. Confirm with the office before booking, especially if you have Medicare Advantage or private insurance.

What does an internal medicine doctor do?

Internists are primary care physicians for adults. They diagnose and manage a wide range of conditions, coordinate care with specialists and focus on prevention.

Internal medicine doctors in California California doctor shortage areas

Listings come from the CMS Doctors and Clinicians national file: clinicians enrolled in Medicare whose primary specialty is internal medicine, at the practice addresses CMS lists in Ontario. Hospital affiliations are the hospitals each clinician reports to Medicare. Details change; confirm with the practice before you visit. About the data.