Dr. Jonathan Oishi
Dr. Jonathan Oishi
Last updated: Nov 24, 2025

Dr. Jonathan Oishi

  • Gender: Male
  • Experience: 5 years
  • Graduation year: 2016
  • Sole propriator: No
  • NPI: 1396109781

Dr. Jonathan Oishi D.O.

Hospitalist

He is located at 11 Technology Drive in Irvine, CA 92618. Can help patients with the following: Arthritis, Edema, Headache, Inguinal Hernia, Peptic Ulcer, Urethritis. His National Provider Identifier (NPI) number is 1396109781. Appointment can be made via the phone number (855) 206-6764. He is affiliated with 2 hospitals.

Conditions treated

Dr. Jonathan Oishi, being an hospitalist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Jonathan Oishi.

  • Abdominal Pain
  • Acute Pain
  • Anemia
  • Arthritis
  • Asthma
  • Atherosclerosis
  • Bladder Control
  • Chest Pain
  • Cholecystitis
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Common Cold
  • Constipation
  • Cystitis
  • Diarrhea
  • Edema
  • Fever
  • Gastroesophageal Reflux Disease (GERD)
  • General Care
  • Headache
  • Heart Disease
  • Hiatal Hernia
  • High Blood Pressure
  • Hot Flashes
  • Hyperlipidemia
  • Hyponatremia
  • Influenza
  • Inguinal Hernia
  • Migraine
  • Nausea and Vomiting
  • Obesity
  • Osteoporosis
  • Peptic Ulcer
  • Prescription Refill
  • Urethritis
  • Urinary Tract Infection (UTI)

Medicare Enrollment

Dr. Jonathan Oishi is enrolled to bill Medicare as a Practitioner - Internal Medicine .

Bills through: Healthcare Partners Affiliates Medical Group

Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Studies

Graduated in 2016

Additional Specialities

  • Internist
  • Resident

Affiliated hospitals

LONG BEACH MEMORIAL MEDICAL CENTER
2801 ATLANTIC AVE
LONG BEACH, 90806 CA
(562) 933-2000
LOS ALAMITOS MEDICAL CENTER
3751 KATELLA AVENUE
LOS ALAMITOS, 90720 CA
(562) 799-3220

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Questions & Answers

Where can you meet with Dr. Jonathan Oishi?

Dr. Jonathan Oishi's office is located at 11 Technology Drive in Irvine, CA 92618.

Does Dr. Jonathan Oishi accept insurance?

Unfortunately we don't have any information if Dr. Jonathan Oishi accepts insurance.

Has Dr. Jonathan Oishi affiliation with hospitals?

Dr. Jonathan Oishi is affiliated with LONG BEACH MEMORIAL MEDICAL CENTER. For the full list of hospitals see this list.

What conditions does Dr. Jonathan Oishi treat?

Dr. Jonathan Oishi provides treatment for Arthritis, Edema, Headache, Inguinal Hernia, Peptic Ulcer, Urethritis. For the full list see this list.