Pediatric Pulmonology
Patient Transition Guide
What You Need to Know
The MSU Health Care Pediatric Pulmonology clinic located at 4660 S Hagadorn Road, East Lansing will close as of June 1, 2025.
We are pleased to inform you that Dr. Ryan Thomas and Cassandra Grimes, NP, will be practicing at their new location with Corewell Health Pediatric Pulmonology - Lansing Pediatric Specialty Care Clinic beginning July 2025.
Our goal is to ensure this transition is as seamless as possible while keeping your child’s care uninterrupted. Below, you’ll find all the essential details about what’s happening, next steps, and additional resources available to support you during this change.
When the Change Is Happening
- Final day of operations at MSU Health Care Pediatric Pulmonology Clinic: June 1, 2025.
- Dr. Ryan Thomas and Cassandra Grimes, NP, will begin seeing patients at their new location in July 2025.
- Important deadlines:
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- Prescription refills: Refills must be requested by June 30, 2025 from MSU Health Care. Refills after this date will need to be submitted through Corewell Health or another provider of your choice.
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- Biologic injection appointments: Available only through June 2025 at the current MSU clinic. Ensure you schedule by contacting 517.884.8600 at your earliest convenience.
Where You Can Continue Care
Starting in July 2025, you may choose to continue your child’s care with Dr. Thomas and Cassandra Grimes at their new location:
Corewell Health Pediatric Pulmonology - Lansing Pediatric Specialty Care Clinic
- 3220 Discovery Drive, Suite 210
- Lansing, MI 48910
- New contact number: 616.267.2200
Should you choose to follow your current providers to Corewell Health, their team will be ready to welcome you and continue delivering the care and attention your child deserves. For gap care between now and July, 2025, please contact your primary care physician.
Your Options and Next Steps
We respect your right to choose where your child receives care. Below are the steps you can take to ensure a smooth transition, whether you stay with your current providers or opt for a new one.
Continuing Care with Corewell Health Pediatric Pulmonology
To continue care with Dr. Thomas and Cassandra Grimes at Corewell Health, please complete the medical records release form. This allows us to transfer your records to their new location.
Transferring Care to a New Provider
If you wish to transfer care to a different provider, complete a medical records release form for your chosen physician.
Accessing Your Records
You can request a copy of your medical records for your personal use. Submit medical records requests through our online chat, patient portal, email or fax.
MSU Health Care Medical Records Contact Information
Insurance and Referral Details
To make the transition as smooth as possible, here are some important points to consider about your insurance and medical referrals if you choose to follow your current providers at Corewell Health Pediatric Pulmonology.
Insurance Coverage
- Confirm that Corewell Health Pediatric Pulmonology is in-network with your insurance provider.
- If needed, request a new referral for specialist care through your insurance provider.
What to Do Next:
- Contact your insurance provider using the number on the back of your card to inquire about next steps required to continue care.
Taking these early steps will help prevent interruptions in your child’s medical care coverage.
Our Appreciation and Support
This transition marks the end of a significant chapter at MSU Health Care Pediatric Pulmonology Clinic. We extend our deepest gratitude for the trust you have placed in us to care for your child, and we remain committed to making your transition as smooth as possible.
If you have any questions or need additional assistance, please do not hesitate to contact us at 517.884.8600 until June 30, 2025.
We are here to help and wish your child continued health and wellness with their medical care.
Frequently Asked Questions
What services are no longer available with the closure of pediatric pulmonology location?
The bronchopulmonary clinic, pediatric pulmonology, pulmonary function testing lab and our cystic fibrosis center will all be closed as of June 1, 2024.Where will my doctor be practicing now? Can I follow them to their new location?
Yes, Dr. Ryan Thomas and Cassandra Grimes, NP, will begin practicing at Corewell Health Pediatric Pulmonology - Lansing Pediatric Specialty Care Clinic starting July 2025.
Phone: 616.267.2200
How can I access my medical records?
You can request copies of your child’s medical records through MSU Health Care by:
- Using the patient portal
- Submitting a request via email (ht.medicalrecords@msu.edu) or fax (517.432.2364)
- Using the online chat on our website
Records will be available from MSU Health Care through June 30, 2025.
Will I be referred to another provider or clinic?
You have the option to either:
- Continue care with Dr. Thomas and Cassandra Grimes at Corewell Health, or
- Transfer care to another provider of your choosing
In either case, a medical records release form must be completed to share your child’s health records.
What happens to my upcoming appointments or procedures?
All appointments at the MSU Health Care Pediatric Pulmonology Clinic must be completed by June 1, 2025.
If you are receiving biologic injection treatments, those will continue at MSU through June 2025—please schedule as soon as possible by calling 517.884.8600.
How long will the office remain open for questions or services like refills or records?
MSU Health Care Pediatric Pulmonology will remain available to assist you through June 30, 2025.
This includes:
- Prescription refills
- Medical records access
- General questions and support
Can I still get my prescriptions refilled? How do I do that?
Yes. Prescription refill requests will be honored through June 30, 2025, by MSU Health Care.
After that date, please request refills through Corewell Health or your new provider.
Will my insurance still be accepted at the new location or by the new provider?
You’ll need to confirm directly with your insurance provider.
We recommend:
- Calling the number on the back of your insurance card
- Confirming that Corewell Health Pediatric Pulmonology is in-network
- Requesting a new referral, if your insurance requires it
How can I contact someone with questions after the office closes?
You may contact MSU Health Care Pediatric Pulmonology at 517.884.8600 through June 30, 2025.
After that date, please reach out directly to Corewell Health at 517.484.0004 for ongoing care.
Is this closure permanent or temporary? Will the practice reopen elsewhere?
The closure is permanent. MSU Health Care is closing the Pediatric Pulmonology service line and will not be reopening it at another location.
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