Johns Hopkins, MedStar & UMMC Maryland 2027 Network Guide
How Baltimore, Towson, Columbia, Bethesda, Silver Spring, Annapolis, and Frederick residents can verify Johns Hopkins, UMMS, and MedStar networks on Maryland Health Connection and Medicare for 2027.
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Navigating Baltimore & National Capital Region Networks in 2027
Maryland households shopping on Maryland Health Connection (MarylandHealthConnection.gov) or comparing 2027 Medicare Advantage plans have access to five major hospital systems: Johns Hopkins Medicine (operating The Johns Hopkins Hospital, Johns Hopkins Bayview Medical Center, Howard County General Hospital in Columbia, Suburban Hospital in Bethesda, Sibley Memorial Hospital in Washington, D.C., and the Sidney Kimmel Comprehensive Cancer Center), the University of Maryland Medical System (UMMS) (anchored by University of Maryland Medical Center [UMMC], UM Greenebaum Comprehensive Cancer Center, UM St. Joseph in Towson, UM Baltimore Washington in Glen Burnie, UM Capital Region in Largo, UM Upper Chesapeake, and UM Shore Regional), MedStar Health (MedStar Franklin Square, Union Memorial, Good Samaritan, Harbor, Montgomery, and Southern Maryland, plus Georgetown and Washington Hospital Center in D.C.), LifeBridge Health (Sinai Hospital, Northwest, and Carroll Hospital), and Luminis Health / Adventist HealthCare / Holy Cross Health across Anne Arundel, Montgomery, and Prince George's counties.
While Maryland's all-payer hospital model regulates inpatient and hospital-based outpatient rates statewide, 2027 insurers still differ sharply in how they contract with academic faculty physician groups, outpatient surgical centers, and cross-border Washington, D.C. and Northern Virginia facilities.
2027 Maryland Hospital & Carrier Network Matrix
| Maryland Health System | Major Campuses & Medical Groups | 2027 Maryland Health Connection Access | 2027 Medicare Access |
|---|---|---|---|
| Johns Hopkins Medicine | The Johns Hopkins Hospital, Bayview, Howard County General, Suburban (Bethesda), Sibley (D.C.), JHCP & JHU Faculty (CPA) | CareFirst BlueChoice HMO & BluePreferred PPO, and select UnitedHealthcare Individual Exchange tiers (verify JHU faculty NPI) | Original Medicare + Medigap, Johns Hopkins Advantage MD (HMO/PPO), and contracted MA plans |
| University of Maryland Medical System (UMMS) | UMMC (Downtown & Midtown Baltimore), UM St. Joseph, UM BWMC, UM Capital Region, UM Faculty Physicians (FPI) | CareFirst BlueChoice HMO / BluePreferred PPO and participating UHC Exchange networks (verify FPI faculty NPI) | Original Medicare + Medigap and participating Baltimore / Statewide Medicare Advantage networks |
| MedStar Health (Baltimore, SoMD & DMV) | Franklin Square, Union Memorial, Good Samaritan, Harbor, Montgomery, Southern MD; plus Georgetown & WHC (D.C.) | CareFirst regional networks and select UHC / Kaiser partner hospital arrangements (verify D.C. border hospital coverage) | Original Medicare + Medigap and contracted Maryland / D.C. Medicare Advantage plans |
| LifeBridge, Luminis, Adventist & Holy Cross | Sinai & Northwest (Baltimore); Anne Arundel Medical Center (Annapolis) & Doctors Community; Shady Grove, White Oak & Holy Cross | Verify local medical group NPIs (LifeBridge, Luminis, Adventist) vs. Kaiser Permanente integrated medical center hubs | Original Medicare + Medigap and participating county Medicare Advantage PPO/HMO plans |
3 Steps for Maryland Residents Before Open Enrollment Ends
- Compare CareFirst BlueChoice HMO vs. BluePreferred PPO vs. Kaiser Permanente: On Maryland Health Connection, CareFirst and UnitedHealthcare contract across independent and hospital-affiliated medical groups, while Kaiser Permanente delivers specialty care through Kaiser medical centers and designated partner hospitals.
- Audit Academic Faculty NPIs at Johns Hopkins & UMMC: Even when an acute care hospital's facility fee is regulated under Maryland's HSCRC model, specialists at Sidney Kimmel Comprehensive Cancer Center (JHU CPA) and UM Greenebaum Comprehensive Cancer Center (UM Faculty Physicians) bill professional fees under faculty group tax IDs that must be in-network.
- Check Washington, D.C. & Northern Virginia Border Access: If you live in Montgomery, Prince George's, Charles, or Frederick County and use MedStar Georgetown, MedStar Washington Hospital Center, Sibley Memorial, or Children's National in D.C., confirm tri-state (MD/DC/NoVA) network inclusion.
Emergency Room Protection (No Surprises Act): Under the federal No Surprises Act and Medicare emergency rules, emergency department evaluation and stabilization at The Johns Hopkins Hospital, UMMC (R Adams Cowley Shock Trauma Center), MedStar, LifeBridge Sinai, Luminis Anne Arundel, and Suburban Hospital ERs are covered at in-network cost-sharing regardless of network status; network restrictions apply to non-emergency surgery, scheduled admissions, and faculty clinic visits.
Frequently Asked Questions
Are Johns Hopkins Hospital, UMMC, and MedStar Health in every 2027 Maryland Health Connection plan?
No. On Maryland Health Connection (MarylandHealthConnection.gov), CareFirst BlueCross BlueShield (BlueChoice HMO vs. BluePreferred PPO), Kaiser Permanente, and UnitedHealthcare Individual Exchange operate distinct provider networks, with Kaiser Permanente delivering specialty care through Kaiser medical hubs and designated partner hospitals.
How does Maryland's all-payer hospital rate-setting model interact with 2027 physician network directories?
While Maryland's Health Services Cost Review Commission (HSCRC) regulates acute care hospital rates statewide, insurers still control network contracts for academic faculty groups (Johns Hopkins Community Physicians, JHU School of Medicine faculty, University of Maryland Faculty Physicians, and MedStar Medical Group) and cross-border Washington, D.C. referrals.
Do Maryland Health Connection plans cover MedStar Georgetown, MedStar Washington Hospital Center, or Children's National in Washington, D.C.?
CareFirst BlueChoice HMO, CareFirst BluePreferred PPO, and Kaiser Permanente Mid-Atlantic span Maryland, Washington, D.C., and Northern Virginia, whereas state-restricted sub-networks may require prior authorization before covering non-emergency specialty visits inside the District of Columbia.
Related Regional Network Guides
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David Huff (Licensed in Maryland · NPN 18213932) helps Baltimore, Montgomery County, Prince George's County, Anne Arundel, Howard, and Frederick residents compare 2027 Maryland Health Connection and Medicare plans.