Nicholas L Hartog, MD
Pediatric Allergy and ImmunologyAllergy and Immunology
Highlights
Age Groups Seen
- Infant 0-2
- Child 3-12
- Adolescent 13-17
- Adult 18-64
- Older Adult 65+
Languages
- English
Gender
MaleAffiliations
- Corewell Health Grand Rapids Hospitals
About Nicholas L Hartog
About the Provider
Nicholas Hartog, MD, is a board-certified physician specializing in pediatric and adult allergy and immunology. Dr. Hartog earned his medical degree from Medical College of Wisconsin in Milwaukee. He completed his internal medicine residency at University of Iowa Hospitals and Clinics in Iowa City and his allergy and immunology fellowship at Washington University School of Medicine in St. Louis.
Dr. Hartog is the head of the pediatric and adult immunodeficiency clinic and his primary clinical interest involves primary and secondary immunodeficiency. Other clinical interests include environmental allergies (seasonal and year-round), chronic/recurrent sinusitis, nasal polyps, eczema, food allergy, oral immunotherapy, severe asthma, penicillin and other antibiotic allergies, hives/urticaria and eosinophilic disorders
Locations
- Corewell Health Allergy and Immunology - Summit Park
- 3271 Clear Vista Court Northeast, Grand Rapids, MI 49525
- Get Directions
- phone: 616-267-7125
- fax: 616-267-9593
- Corewell Health Pediatric Allergy and Immunology - 35 Michigan St NE
- 35 Michigan Street Northeast, Suite 3003, Grand Rapids, MI 49503
- Get Directions
- phone: 616-267-8150
- fax: 616-267-2851
Experience
Education
- Fellowship: University of Washington School of Medicine, Allergy & Immunology, 2016
- Residency: University of Iowa Hospitals and Clinics, Internal Medicine, 2014
- Medical School: Medical College of Wisconsin, Doctor of Medicine (MD), 2011
Board Certifications
- Allergy and Immunology: American Board of Allergy and Immunology, 2016
- Internal Medicine: American Board of Internal Medicine, 2014
Insurance
- Aetna/Cofinity
- Align Senior Care MI
- BCBS Medicare Advantage Plus Blue
- BCBS PPO
- BCBS Traditional
- Blue Care Network
- Blue Care Network Medicare Advantage
- Blue Cross Complete
- Cigna
- Coventry First Health
- HAP/ASR
- Humana Military (Tricare East)
- McLaren Commercial
- McLaren Medicaid
- McLaren Medicare Advantage
- Medicaid
- Medicare
- Meridian AmBetter
- Meridian Complete (MI Health LINK) Dual Eligible
- Meridian Medicaid
- Molina Medicaid/MiChild/Marketplace (Health Plus)
- Molina Medicare
- Priority Health Choice Medicaid
- Priority Health HMO/PPO
- Priority Health Medicare Advantage
- Trinity Health Plan of MI
- UHC/Optum (VA Community Care Network)
- UM Health Plan
- United Health Care Commercial
- United Health Care Community Plan (Medicaid)
- United Health Care Dual Complete
Ratings & Reviews
4.6 out of 5
65 ratings, 16 reviewsCorewell Health is committed to delivering high-quality and compassionate care. These ratings and reviews are transparent patient feedback collected via survey following a provider care experience that asks patients and families about the care they received.
- 5 out of 5 starsReviewed on 1/11/2026
He patiently listened to what I explained was going on with me. He knew and referred to my history. He repeated what he had heard to make sure he had what I was concerned about correct. He explains things clearly, made sure I understood, and was patient when repeating things for me that I didn't understand.
- 5 out of 5 starsReviewed on 12/25/2025
Excellent provider
- 5 out of 5 starsReviewed on 9/10/2025
I have been to my Corewell Health PCP, his PA and NP, two dermatologists, a fake allergist and now Dr. Hartog. Dr. Hartog is the first to examine my condition in a hands-on fashion (gloved of course). I appreciated his thoroughness, kind manner, and professionalism. Few are able to combine those last two well.
- 5 out of 5 starsReviewed on 9/5/2025
First time meeting him. Very thorough and informative.
- 5 out of 5 starsReviewed on 9/2/2025
Dr. Hartog always listens to you and gives great feedback.
- 5 out of 5 starsReviewed on 7/8/2025
He seemed concerned about any issues that involved my health.
- 5 out of 5 starsReviewed on 6/5/2025
Excellent care good info
- 5 out of 5 starsReviewed on 6/4/2025
Nice person
- 5 out of 5 starsReviewed on 5/14/2025
Dr. Hartog went over things with me clearly and explained things step by step. He listened to what I had to say and was also able to perform needed tests on the spot rather than having to schedule additional visits.
- 5 out of 5 starsReviewed on 5/11/2025
He actively listened, asked me pertinent questions, and spoke clearly about my issues.
- 5 out of 5 starsReviewed on 5/6/2025
Been dealing with him for a minute.
- 5 out of 5 starsReviewed on 5/2/2025
I am very grateful he is here and can be my doctor.
- 5 out of 5 starsReviewed on 5/1/2025
Very knowledgeable
- 1 out of 5 starsReviewed on 4/2/2025
They should do better rather than just guess.
- 5 out of 5 starsReviewed on 3/19/2025
Tells it like it is yet caring for your well-being
- 5 out of 5 starsReviewed on 3/1/2025
it was helpful