Quick answers
- Which hospitals does Michael E. Ronan work at?
- Medicare's official clinician data lists Michael E. Ronan at 4 hospitals: Holy Cross Germantown Hospital, Johns Hopkins Howard County Medical Center, MedStar Montgomery Medical Center and Suburban Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael E. Ronan see patients?
- Medicare's clinician data lists 5 practice locations, including Columbia, MD, Germantown, MD and Olney, MD. Call before your visit to confirm the address.
- What is Michael E. Ronan's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Michael E. Ronan accept Medicare assignment?
- Yes. Medicare's clinician data says Michael E. Ronan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Michael E. Ronan?
- (410) 644-1880, as listed in official Medicare / NPI Registry data.
- What is Michael E. Ronan's NPI number?
- 1255349940. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael E. Ronan works
Medicare's Facility Affiliation Data lists Michael E. Ronan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Holy Cross Germantown HospitalGermantown, MD · Acute Care Hospital · CCN 210065
- Johns Hopkins Howard County Medical CenterColumbia, MD · Acute Care Hospital · CCN 210048
- MedStar Montgomery Medical CenterOlney, MD · Acute Care Hospital · CCN 210018
- Suburban HospitalBethesda, MD · Acute Care Hospital · CCN 210022
Practice locations
Addresses where Michael E. Ronan is enrolled with Medicare (CMS data updated 2026-10-02).
- 10710 Charter Dr, Suite 300Columbia, MD 21044 (410) 644‑1880
- 19801 Observation DrGermantown, MD 20876 (301) 694‑8311
- 19851 Observation Dr, Suite 450Germantown, MD 20876 (301) 977‑6777
- 3414 Olandwood CtOlney, MD 20832 (301) 774‑0500
- 5255 Loughboro Rd NWWashington, DC 20016 (202) 660‑6500
Group practices
Medicare enrollment lists Michael E. Ronan as a member of these groups (CMS data updated 2026-10-02).
- Johns Hopkins University713 clinicians in the group
- Centers for Advanced Orthopaedics LLC604 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Columbia
Clinicians with the same Medicare primary specialty in Columbia, MD — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255349940 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians