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Internal Medicine

Mariah Robertson, MD

Works at hospitals in Baltimore, MD · Maryland

Summary

Mariah Robertson, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Baltimore, MD. NPI 1639556590. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mariah Robertson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
May acceptAccepts Medicare assignment
YesOffers telehealth
12Years since medical school (graduated 2014)
University Of Missouri, Columbia School Of MedicineMedical school
FemaleGender (as listed)
Johns Hopkins UniversityGroup practice (+1 more)

Quick answers

Which hospitals does Mariah Robertson work at?
Medicare's official clinician data lists Mariah Robertson at 2 hospitals: Johns Hopkins Bayview Medical Center and The Johns Hopkins Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mariah Robertson see patients?
Medicare's clinician data lists 5 practice locations, including Baltimore, MD. Call before your visit to confirm the address.
What is Mariah Robertson's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Mariah Robertson accept Medicare assignment?
Medicare's clinician data says Mariah Robertson may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
Does Mariah Robertson offer telehealth?
Medicare's clinician data says Mariah Robertson offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mariah Robertson?
(410) 522-9800, as listed in official Medicare / NPI Registry data.
What is Mariah Robertson's NPI number?
1639556590. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mariah Robertson works

Medicare's Facility Affiliation Data lists Mariah Robertson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Mariah Robertson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mariah Robertson as a member of these groups (CMS data updated 2026-10-02).

  • Johns Hopkins University2,909 clinicians in the group
  • Johns Hopkins Community Physicians, Inc763 clinicians in the group

Specialties

Find other Internal Medicine doctors in Maryland →

Other internal medicine doctors in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

All internal medicine doctors in Baltimore →

Clinician information

CredentialMD
Medical schoolUniversity Of Missouri, Columbia School Of Medicine
Graduation year2014
Gender (as listed)Female
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639556590
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians