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Family Practice

Mary Ritchie, MD

Works at hospitals in Olney, MD · Maryland

Summary

Mary Ritchie, MD (Family Practice) is listed by Medicare at 1 hospital in Olney, MD. NPI 1255397741. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mary Ritchie, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
32Years since medical school (graduated 1994)
University Of Texas Medical School At HoustonMedical school
FemaleGender (as listed)
MedStar Medical Group II LLCGroup practice (+2 more)

Quick answers

Which hospitals does Mary Ritchie work at?
Medicare's official clinician data lists Mary Ritchie at 1 hospital: MedStar Montgomery Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mary Ritchie see patients?
Medicare's clinician data lists 5 practice locations, including Washington, DC, Glenview, IL and Olney, MD. Call before your visit to confirm the address.
What is Mary Ritchie's specialty?
Medicare lists Family Practice as the primary specialty.
Does Mary Ritchie accept Medicare assignment?
Yes. Medicare's clinician data says Mary Ritchie 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 Mary Ritchie offer telehealth?
Medicare's clinician data says Mary Ritchie offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mary Ritchie?
(202) 429-2401, as listed in official Medicare / NPI Registry data.
What is Mary Ritchie's NPI number?
1255397741. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mary Ritchie works

Medicare's Facility Affiliation Data lists Mary Ritchie 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 Mary Ritchie is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • MedStar Medical Group II LLC3,767 clinicians in the group
  • Select Rehabilitation, LLC2,046 clinicians in the group
  • Suburban/Nrh Medical Rehabilitation Inc941 clinicians in the group

Specialties

Find other Family Practice doctors in District of Columbia →

Other family doctors in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

All family doctors in Washington →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At Houston
Graduation year1994
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1255397741
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