Dr. Gregory H. Downer
Dr. Gregory H. Downer
Last updated: Feb 17, 2014

Dr. Gregory H. Downer

  • Gender: Male
  • Experience: 40 years
  • Graduated from: Indiana University School Of Medicine
  • Graduation year: 1981
  • Sole propriator: No
  • NPI: 1285635367

Dr. Gregory H. Downer M.D.

Nephrologist

He is located at 1250 Mercy Drive Suite 101 in Muskegon, MI 49444. Can help patients with the following: Common Cold, Gastroesophageal Reflux Disease (GERD), Heart Disease, Hydronephrosis, Inguinal Hernia, Kidney Stones. His National Provider Identifier (NPI) number is 1285635367. Appointment can be made via the phone number (231) 733-1912. He is affiliated with 1 practices and 5 hospitals.

Conditions treated

Dr. Gregory H. Downer, 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. Gregory H. Downer.

  • 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. Gregory H. Downer

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Gregory H. Downer as in-network for the following 2026 plans.

Health plans

Blue Care Network of Michigan

Network data as of Jun 9, 2026, as reported by the insurer.

Show all 16 plans from Blue Care Network of Michigan
Blue Care Network of Michigan plans
Plan Plan type Network tier New patients
Blue Cross® Preferred HMO Bronze Extra HMO · Expanded Bronze Null Accepting new patients
Blue Cross® Preferred HMO Bronze Saver HSA HMO · Expanded Bronze Null Accepting new patients
Blue Cross® Preferred HMO Bronze Secure HMO · Bronze Null Accepting new patients
Blue Cross® Preferred HMO Gold HMO · Gold Null Accepting new patients
Blue Cross® Preferred HMO Gold Extra HMO · Gold Null Accepting new patients
Blue Cross® Preferred HMO Silver HMO · Silver Null Accepting new patients
Blue Cross® Preferred HMO Silver Extra HMO · Silver Null Accepting new patients
Blue Cross® Preferred HMO Silver Saver HMO · Silver Null Accepting new patients
Blue Cross® Preferred HMO Value HMO · Catastrophic Null Accepting new patients
Blue Cross® Select HMO Bronze Extra HMO · Expanded Bronze Null Accepting new patients
Blue Cross® Select HMO Bronze Saver HSA HMO · Expanded Bronze Null Accepting new patients
Blue Cross® Select HMO Bronze Secure HMO · Bronze Null Accepting new patients
Blue Cross® Select HMO Silver HMO · Silver Null Accepting new patients
Blue Cross® Select HMO Silver Extra HMO · Silver Null Accepting new patients
Blue Cross® Select HMO Silver Saver HMO · Silver Null Accepting new patients
Blue Cross® Select HMO Value HMO · Catastrophic Null Accepting new patients

Blue Cross Blue Shield of Michigan Mutual Insurance Company

Network data as of Jun 9, 2026, as reported by the insurer.

Show all 9 plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company
Blue Cross Blue Shield of Michigan Mutual Insurance Company plans
Plan Plan type Network tier New patients
Blue Cross® Premier PPO Bronze Extra PPO · Expanded Bronze Null Accepting new patients
Blue Cross® Premier PPO Bronze Saver HSA PPO · Expanded Bronze Null Accepting new patients
Blue Cross® Premier PPO Bronze Secure PPO · Bronze Null Accepting new patients
Blue Cross® Premier PPO Gold PPO · Gold Null Accepting new patients
Blue Cross® Premier PPO Gold Extra PPO · Gold Null Accepting new patients
Blue Cross® Premier PPO Silver PPO · Silver Null Accepting new patients
Blue Cross® Premier PPO Silver Extra PPO · Silver Null Accepting new patients
Blue Cross® Premier PPO Silver Saver HSA PPO · Silver Null Accepting new patients
Blue Cross® Premier PPO Value PPO · Catastrophic Null Accepting new patients

This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Gregory H. Downer is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Dr. Gregory H. Downer is enrolled to bill Medicare as a Practitioner - Nephrology (also registered under: Practitioner - Internal Medicine) .

Bills through: West Michigan Nephrology Pllc

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.

Payments received

Drug payment

Otsuka Pharmaceutical $24
Amgen $18

Other

Food and Beverage $44

Studies

INDIANA UNIVERSITY SCHOOL OF MEDICINE

Graduated in 1981

Additional Specialities

  • Internist

Affiliated practices

West Michigan Nephrology
1250 Mercy Drive
Muskegon, 49444 MI
(231) 733-1912

Affiliated hospitals

SPECTRUM HEALTH-BUTTERWORTH CAMPUS
100 MICHIGAN ST NE
GRAND RAPIDS, 49503 MI
(616) 391-1774
MERCY HEALTH HACKLEY CAMPUS
1700 CLINTON STREET
MUSKEGON, 49442 MI
(231) 726-3511
SPECTRUM HEALTH LUDINGTON HOSPITAL
ONE N ATKINSON DRIVE
LUDINGTON, 49431 MI
(231) 843-2591
MERCY HEALTH LAKESHORE CAMPUS
72 SOUTH STATE STREET
SHELBY, 49455 MI
(231) 861-2156
SPECTRUM HEALTH GERBER MEMORIAL
212 S SULLIVAN ST
FREMONT, 49412 MI
(231) 924-3300

Looking for more Nephrologists?

There are 8 other nephrologists in this region.

Dr. Mark E. Staniforth
  • Gender: Male
  • Address: Suite 101 1250 Mercy Drive Muskegon, 49444, MI
Dr. Yumiko T. Knudson
  • Gender: Female
  • Address: Suite 210 433 Seminole Road Muskegon, 49444, MI
Dr. Joseph McKenna
  • Gender: Male
  • Address: Suite 101 1250 Mercy Drive Muskegon, 49444, MI
Dr. Bao-Min Twu
  • Gender: Male
  • Address: 1277 Mercy Drive Muskegon, 49444, MI
Dr. James P. Conley
  • Gender: Male
  • Address: Suite 101 1250 Mercy Drive Muskegon, 49444, MI
Dr. Emily L. Conley
  • Gender: Female
  • Address: Suite 101 1250 Mercy Drive Muskegon, 49444, MI
Dr. Randall S. Muir
  • Gender: Male
  • Address: Suite 101 1250 Mercy Drive Muskegon, 49444, MI
Dr. Barry William Kram
  • Gender: Male
  • Address: 1277 Mercy Drive Muskegon, 49444, MI

Questions & Answers

Does Dr. Gregory H. Downer have affiliation with practices?

Dr. Gregory H. Downer is affiliated with West Michigan Nephrology.

Where can you meet with Dr. Gregory H. Downer?

Dr. Gregory H. Downer's office is located at 1250 Mercy Drive Suite 101 in Muskegon, MI 49444.

Has Dr. Gregory H. Downer affiliation with hospitals?

Dr. Gregory H. Downer is affiliated with SPECTRUM HEALTH-BUTTERWORTH CAMPUS. For the full list of hospitals see this list.

What conditions does Dr. Gregory H. Downer treat?

Dr. Gregory H. Downer provides treatment for Common Cold, Gastroesophageal Reflux Disease (GERD), Heart Disease, Hydronephrosis, Inguinal Hernia, Kidney Stones. For the full list see this list.

Does Dr. Gregory H. Downer accept patients with Blue Care Network of Michigan?

Yes, Dr. Gregory H. Downer is listed in-network for Blue Care Network of Michigan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.