Dr. John Alferes
Dr. John Alferes

Dr. John Alferes

  • Gender: Male
  • Experience: 39 years
  • Graduated from: Oregon Health Sciences University School Of Medicine
  • Graduation year: 1982
  • Sole propriator: No
  • NPI: 1679680805

Dr. John Alferes JR. M.D.

Internist

He is located at 3550 North Interstate Avenue in Portland, OR 97227. Can help patients with the following: Arthritis, Cholecystitis, Cystitis, Fever, Hiatal Hernia, Urinary Tract Infection (UTI). His National Provider Identifier (NPI) number is 1679680805. Appointment can be made via the phone number (503) 285-9321. He is affiliated with 1 practices.

Conditions treated

Dr. John Alferes, 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 Alferes.

  • 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. John Alferes is enrolled to bill Medicare as a Practitioner - Internal Medicine .

Bills through: Kaiser Foundation Health Plan Of The Northwest

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

OREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE

Graduated in 1982

Affiliated practices

Kaiser Foundation Health Plan of the Northwest
3550 North Interstate Avenue
Portland, 97227 OR
(503) 249-3437

Looking for more Internists?

Out of the 128 internists in this region, here are 10 randomly selected ones for you to explore.

Dr. Aaron William Spaugy
  • Gender: Male
  • Address: Suite 230 2800 North Vancouver Avenue Portland, 97227, OR
Dr. Smitha R. Chadaga
  • Gender: Female
  • Address: 2801 North Gantenbein Avenue Portland, 97227, OR
Dr. Jennifer Dale Simpson
  • Gender: Female
  • Address: 3550 North Interstate Avenue Portland, 97227, OR
Dr. Kalpana Rejina Injety
  • Gender: Female
  • Address: Suite 230 2800 North Vancouver Avenue Portland, 97227, OR
Dr. Jason John Powers
  • Gender: Male
  • Address: 3500 North Interstate Avenue Portland, 97227, OR
Dr. Tarris Webber
  • Gender: Female
  • Address: 2801 North Gantenbein Avenue Portland, 97227, OR
Dr. Andrew W. Hoyer
  • Gender: Male
  • Address: Room 3302 1625 North Campbell Avenue Tuscon, 85719, AZ
Dr. Amish J. Desai
  • Gender: Male
  • Address: Suite 200 501 North Graham Street Portland, 97227, OR
Dr. James Sheldon Prihoda
  • Gender: Male
  • Address: 3325 North Interstate Avenue Portland, 97227, OR
Dr. Michael James Mosier
  • Gender: Male
  • Address: 2823 Fresno Street Fresno, 93721, CA

Questions & Answers

Where can you meet with Dr. John Alferes?

Dr. John Alferes's office is located at 3550 North Interstate Avenue in Portland, OR 97227.

What conditions does Dr. John Alferes treat?

Dr. John Alferes provides treatment for Arthritis, Cholecystitis, Cystitis, Fever, Hiatal Hernia, Urinary Tract Infection (UTI). For the full list see this list.

Does Dr. John Alferes have affiliation with practices?

Dr. John Alferes is affiliated with Kaiser Foundation Health Plan of the Northwest.

Does Dr. John Alferes accept insurance?

Unfortunately we don't have any information if Dr. John Alferes accepts insurance.