Quick answers
- Which hospitals does Martha E. Johnson work at?
- Medicare's official clinician data lists Martha E. Johnson at 1 hospital: University of Maryland Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Martha E. Johnson see patients?
- Medicare's clinician data lists 3 practice locations, including Baltimore, MD and Columbia, MD. Call before your visit to confirm the address.
- What is Martha E. Johnson's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Martha E. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Martha E. Johnson 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.
- Does Martha E. Johnson offer telehealth?
- Medicare's clinician data says Martha E. Johnson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Martha E. Johnson?
- (410) 328-8667, as listed in official Medicare / NPI Registry data.
- What is Martha E. Johnson's NPI number?
- 1669649885. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Martha E. Johnson works
Medicare's Facility Affiliation Data lists Martha E. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of Maryland Medical CenterBaltimore, MD · Acute Care Hospital · CCN 210002
Practice locations
Addresses where Martha E. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 22 S Green StBaltimore, MD 21201 (410) 328‑8667
- 29 S Paca StBaltimore, MD 21201 (667) 214‑2100
- 5890 Waterloo RdColumbia, MD 21045 (667) 214‑2100
Group practices
Medicare enrollment lists Martha E. Johnson as a member of this group (CMS data updated 2026-10-02).
- University of Maryland Family Medicine Associates, P.A.33 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1669649885 |
| 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