Summary

Dr. William Grier treats breathing problems, respiratory failure, and dyspnea, and performs pulmonary function testing, bronchodilator reversibility testing, and asthma challenge tests. He practices internal medicine and critical care medicine in Baltimore, Maryland, and has 10 years of experience. Dr. Grier earned his medical degree from Drexel University College of Medicine and completed his residency at the University of Maryland Medical Center.

Overview based on verified provider data

Quick Facts

  • 10 years of experience
  • 38 insurance plans accepted
  • University Of Maryland Medical Center
  • 2 specialties
  • 2 areas of expertise
  • 1 office location
  • Male

Office Location

University Of Maryland Childrens Hospital

22 S Greene StBaltimore, MD 21201
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. William R Grier, MDDr. David Clark JR., MDDr. Maria Borodatcheva, MDDr. Ronald Thomas, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
0 
0 
4 
4.3 
10 Years of Experience 27 Years of Experience 48 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English
Baltimore , MDGreenbelt , MDColumbia , MDNottingham , MD
Med School: Drexel University College Of Medicine Med School: Howard University College of Medicine Med School: The Peoples' Friendship University Med School: University of Maryland School of Medicine
Current Profile
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Insurance Plans Accepted by Dr. William R Grier

  • AARP
  • Aetna
  • Aetna - Medicare
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - Federal Employees Program
  • CareFirst Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield - HMO
  • CareFirst Blue Cross Blue Shield - PPO
  • CareFirst BlueCross BlueShield
  • CareFirst BlueCross BlueShield - Medicaid (Managed)
  • CareFirst BlueCross BlueShield - Medicare
  • CHAMPVA
  • Cigna
  • Empire Plan
  • Humana
  • Humana - HMO
  • Jai Medical Systems
  • Kaiser Permanente
  • Kaiser Permanente - Medicaid (Managed)
  • Maryland Physicians Care
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • MedStar Family Choice
  • Molina Healthcare
  • Mutual of Omaha
  • Priority Partners
  • Priority Partners - Medicaid (Managed)
  • Riverside Health
  • Riverside Health - Medicaid (Managed)
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • University of Maryland Health Partners

Medical Specialties

Dr. William R Grier has the following 2 specialties

Specialty Expertise

Dr. William R Grier has the following 2 areas of expertise

  • Critical Care Medicine
  • Pulmonary Critical Care Medicine

Certifications, License, & Education

10 Years Experience

Dr. William R Grier holds an expired medical license in the state of Maryland.

Medical License

Medical Doctor with an expired medical license in the state of Maryland that expired in 2026.

Education & Training

Residency

Completed their residency at University Of Maryland Medical Center.

Medical School

Graduated from Drexel University College Of Medicine in 2016.

NPI Number

Dr. Grier's NPI number is 1740643378.

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Frequently Asked Questions

Is Dr. William Grier accepting new patients?
Dr. William Grier has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. William Grier accept my insurance?
You can see the insurance plans that Dr. William Grier accepts on their Vitals profile.
Does Dr. William Grier accept virtual/telehealth appointments?
Dr. William Grier has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. William Grier?
You can find contact information for Dr. William Grier here on Vitals.
Where is Dr. William Grier's office located?
Dr. William Grier's office is located at 22 S Greene St, Baltimore, MD, 21201.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards

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