
Overview
William Clark is a primary care provider, practicing in Family Medicine in Rockford, Michigan. Dr. Clark has been practicing medicine for over 14 years and is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. His top areas of expertise are Obesity, Generalized Anxiety Disorder (GAD), Seasonal Affective Disorder (SAD), and Obesity in Children.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE-MEDICAID PLAN
- EPO
- HMO
- POS
- PPO
- MEDICARE MAPD
- MEDICARE SNP
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER COMMERCIAL
- OTHER MEDICARE
- PPO
- HMO
- POS
- PPO
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- HMO
- EPO
- HMO
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE PART D
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- HMO
- POS
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER COMMERCIAL
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
8501 Meadow Creek, Rockford, MI 49341
1202 West Oak Street, Suite 200, Greenville, MI 48838
275 Michigan Street Northeast, Suite 8100, Grand Rapids, MI 49503
Grand Valley Medical Specialists - Wyoming
Michael Bultje is a primary care provider, practicing in Family Medicine in Wyoming, Michigan. Dr. Bultje has been practicing medicine for over 27 years and is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. His top areas of expertise are Macroamylasemia, Type 2 Diabetes (T2D), Glucocorticoid-Remediable Aldosteronism, and Hypertension. Dr. Bultje is currently accepting new patients.
Corewell Health Advanced Primary Care - Holland
Nathanial Chumley is a primary care provider, practicing in Geriatrics and Family Medicine in Holland, Michigan. Dr. Chumley has been practicing medicine for over 15 years and is rated as an Advanced provider by MediFind in the treatment of Hashimoto Thyroiditis. His top areas of expertise are Type 2 Diabetes (T2D), Seasonal Affective Disorder (SAD), Glucocorticoid-Remediable Aldosteronism, and Hypertension. Dr. Chumley is currently accepting new patients.
Corewell Health Family, Lnternal And Pediatric Medicine - Rockford
Aaron Defrang is a primary care provider, practicing in Family Medicine in Rockford, Michigan. Dr. Defrang has been practicing medicine for over 21 years and is rated as an Advanced provider by MediFind in the treatment of Hashimoto Thyroiditis. His top areas of expertise are Generalized Anxiety Disorder (GAD), Familial Combined Hyperlipidemia, Xanthoma, and Glucocorticoid-Remediable Aldosteronism.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- Generalized Anxiety Disorder (GAD)
- ObesityDr. Clark isAdvanced. Learn about Obesity.
- Seasonal Affective Disorder (SAD)
- Experienced
- Acute CystitisDr. Clark isExperienced. Learn about Acute Cystitis.
- AnemiaDr. Clark isExperienced. Learn about Anemia.
- Aphthous StomatitisDr. Clark isExperienced. Learn about Aphthous Stomatitis.
- Atypical PneumoniaDr. Clark isExperienced. Learn about Atypical Pneumonia.
- Bernard-Soulier SyndromeDr. Clark isExperienced. Learn about Bernard-Soulier Syndrome.
- BullaeDr. Clark isExperienced. Learn about Bullae.



