Dr. John Weijune Wang
Dr. John W. Wang
Last updated: Jun 11, 2026

Dr. John W. Wang

  • Gender: Male
  • Experience: 22 years
  • Graduated from: University Of Texas Medical School At San Antonio
  • Graduation year: 1999
  • Sole propriator: No
  • NPI: 1720048291

Dr. John W. Wang M.D.

Internist

He is located at 18785 Brookhurst St., Suite 200 in Fountain Valley, CA 92708. Can help patients with the following: Anemia, Chest Pain, Cystitis, General Care, Influenza, Peptic Ulcer. His National Provider Identifier (NPI) number is 1720048291. Appointment can be made via the phone number (714) 378-5330. He also has a website where you can get more information. The website can be found at http://optumcaremedical.com?o=CARE:NPS:OC_9.1_2020:YEXT:OC:GEN:2046CAD10:n_a:n_a:n_a:n_a:n_a. He is affiliated with 2 practices and 1 hospitals.

Conditions treated

Dr. John Weijune Wang, being an internist, 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. John W. Wang.

  • 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)

Procedures Performed by Dr. John W. Wang

Medicare Enrollment

Dr. John W. Wang is enrolled to bill Medicare as a Practitioner - Internal Medicine .

Bills through: Memorialcare Medical Foundation

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Studies

UNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO

Graduated in 1999

Other ways to reach out

  • Website: http://optumcaremedical.com?o=CARE:NPS:OC_9.1_2020:YEXT:OC:GEN:2046CAD10:n_a:n_a:n_a:n_a:n_a
  • Email Now:

Affiliated practices

Optumcare Medical Group
3460 Katella Avenue
Los Alamitos, 90720 CA
(562) 594-6599
Circlemed Healthcare
11160 Warner Avenue
Fountain Valley, 92708 CA
(714) 263-0923

Affiliated hospitals

ORANGE COAST MEMORIAL MEDICAL CENTER
9920 TALBERT AVENUE
FOUNTAIN VALLEY, 92708 CA
(714) 378-7406

Looking for more Internists?

There are 8 other internists in this region.

Dr. Edward R. Etzkorn
  • Gender: Male
  • Address: 19066 Magnolia Street Huntington Beach, 92646, CA
Mark J. Fredrick
  • Gender: Male
  • Address: 19066 Magnolia Street Huntington Beach, 92646, CA
Dr. Curtis Davis
  • Gender: Male
  • Address: 19066 Magnolia Street Huntington Beach, 92646, CA
Dr. Vilasinee Morkjaroenpong
  • Gender: Female
  • Address: Suite 105 20932 Brookhurst Street Huntington Beach, 92646, CA
Dr. Victor C. Caluya
  • Gender: Male
  • Address: 6900 Lincoln Avenue Buena Park, 90620, CA
Dr. Phiet Phung
  • Gender: Male
  • Address: 19066 Magnolia Street Huntington Beach, 92646, CA
Dr. Dena Zedan
  • Gender: Female
  • Address: 19066 Magnolia Street Huntington Beach, 92646, CA
Dr. Michael M. Khatibi
  • Gender: Male
  • Address: 9131 Adams Avenue Huntington Beach, 92646, CA

Questions & Answers

Where can you meet with Dr. John Weijune Wang?

Dr. John Weijune Wang's office is located at 18785 Brookhurst St., Suite 200 in Fountain Valley, CA 92708.

Does Dr. John Weijune Wang have affiliation with practices?

Dr. John Weijune Wang is affiliated with Optumcare Medical Group. For the full list of practices see this list.

What conditions does Dr. John Weijune Wang treat?

Dr. John Weijune Wang provides treatment for Anemia, Chest Pain, Cystitis, General Care, Influenza, Peptic Ulcer. For the full list see this list.

Has Dr. John Weijune Wang affiliation with hospitals?

Dr. John Weijune Wang is affiliated with ORANGE COAST MEMORIAL MEDICAL CENTER.