Dr. John Stephen Hammes
Dr. John S. Hammes
Last updated: Jun 15, 2026

Dr. John S. Hammes

  • Gender: Male
  • Experience: 28 years
  • Graduated from: Uniformed Services Uhs Fe Hebert School Of Med
  • Graduation year: 1993
  • Sole propriator: No
  • NPI: 1891766994

Dr. John S. Hammes M.D.

Nephrologist

He is located at 8885 Rio San Diego Drive Suite 212 in San Diego, CA 92108. Can help patients with the following: Blood in Urine, Hemolytic Uremic Syndrome (HUS), Hiatal Hernia, Hydronephrosis, Kidney Cancer, Vitamin D Deficiency. His National Provider Identifier (NPI) number is 1891766994. Appointment can be made via the phone number (619) 299-2350. He is affiliated with 3 practices and 2 hospitals.

Conditions treated

Dr. John Stephen Hammes, being an nephrologist, 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 S. Hammes.

  • Abdominal Pain
  • Acute Pain
  • Anemia
  • Arthritis
  • Asthma
  • Atherosclerosis
  • Bladder Control
  • Blood in Urine
  • Chest Pain
  • Cholecystitis
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Common Cold
  • Constipation
  • Cystitis
  • Diarrhea
  • Edema
  • Fever
  • Gastroesophageal Reflux Disease (GERD)
  • General Care
  • Gout
  • Headache
  • Heart Disease
  • Hemolytic Uremic Syndrome (HUS)
  • Hiatal Hernia
  • High Blood Pressure
  • Hot Flashes
  • Hydronephrosis
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hyperparathyroidism
  • Hyponatremia
  • Influenza
  • Inguinal Hernia
  • Kidney Cancer
  • Kidney Failure
  • Kidney Infection
  • Kidney Stones
  • Low Blood Pressure
  • Low Potassium
  • Migraine
  • Nausea and Vomiting
  • Obesity
  • Osteoporosis
  • Peptic Ulcer
  • Polycystic Kidney Disease (PKD)
  • Prescription Refill
  • Rhabdomyolysis
  • Urethritis
  • Urinary Tract Infection (UTI)
  • Vitamin D Deficiency

Procedures Performed by Dr. John S. Hammes

Insurances Accepted by Dr. John S. Hammes

  1. Medicare

Medicare Enrollment

Dr. John S. Hammes is enrolled to bill Medicare as a Practitioner - Nephrology (also registered under: Practitioner - Internal Medicine) .

Bills through: Regents Of The University Of California

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.

Payments received

Drug payment

Amag Pharmaceuticals $748
Nxstage Medical $177
AstraZeneca $95

Other

Food and Beverage $1297

Studies

UNIFORMED SERVICES UHS FE HEBERT SCHOOL OF MED

Graduated in 1993

Additional Specialities

  • Internist

Affiliated practices

Emergency & Acute Care Medical Corporation
16236 San Dieguito Road
Rancho Santa Fe, 92091 CA
(858) 759-4765
Balboa Nephrology Medical Group
9610 Granite Ridge Drive
San Diego, 92123 CA
(858) 810-8000
Jeffry a Mullvain MD
4060 4th Avenue
San Diego, 92103 CA
(619) 260-1900

Affiliated hospitals

SCRIPPS MERCY HOSPITAL
4077 5TH AVE
SAN DIEGO, 92103 CA
(619) 294-8111
SHARP CORONADO HOSPITAL AND HLTHCR CTR
250 PROSPECT PLACE
CORONADO, 92118 CA
(619) 435-6251

Questions & Answers

Has Dr. John Stephen Hammes affiliation with hospitals?

Dr. John Stephen Hammes is affiliated with SCRIPPS MERCY HOSPITAL. For the full list of hospitals see this list.

Where can you meet with Dr. John Stephen Hammes?

Dr. John Stephen Hammes's office is located at 8885 Rio San Diego Drive Suite 212 in San Diego, CA 92108.

What conditions does Dr. John Stephen Hammes treat?

Dr. John Stephen Hammes provides treatment for Blood in Urine, Hemolytic Uremic Syndrome (HUS), Hiatal Hernia, Hydronephrosis, Kidney Cancer, Vitamin D Deficiency. For the full list see this list.

Does Dr. John Stephen Hammes accept patients with Medicare?

Yes, Dr. John Stephen Hammes accepts patients with Medicare.

Does Dr. John Stephen Hammes have affiliation with practices?

Dr. John Stephen Hammes is affiliated with Emergency & Acute Care Medical Corporation. For the full list of practices see this list.