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MD
Internal Medicine, Cardiovascular Disease
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Dr. Grenzer graduated from the University of Maryland School of Medicine in 1966. He works in Baltimore, MD and specializes in Internal Medicine and Cardiovascular Disease. Dr. Grenzer is affiliated with Greater Baltimore Medical Center, Mercy Medical Center and University Of Maryland Saint Joseph Medical Center.
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Office Hours
| Day | Open/Closed | From | To |
|---|---|---|---|
| Monday | Closed | - | - |
| Tuesday | Closed | - | - |
| Wednesday | Closed | - | - |
| Thursday | Closed | - | - |
| Friday | Closed | - | - |
| Saturday | Closed | - | - |
| Sunday | Closed | - | - |
Insurances
- BCBS Blue Card PPO
- UHC Compass HMO
- UHC Navigate POS
- UHC Choice Plus POS
- UHC Navigate HMO
- UHC Options PPO
- Aetna Choice POS II
- Aetna Managed Choice POS Open Access
- Aetna Signature Administrators PPO
- First Health PPO
- Aetna HMO
- CareFirst BlueChoice Advantage
- CareFirst BluePreferred PPO
- UHC
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