MARY ELIZABETH RICHERT M.D.
NPI 1184159535
Internal Medicine - Critical Care Medicine in Bethesda, MD
About Mary Elizabeth Richert M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY ELIZABETH RICHERT M.D. (NPI 1184159535) is an individual critical care medicine provider in Bethesda, Maryland, licensed in Maryland (D0095014) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with Medstar Franklin Square Medical Center, and maintains a secondary practice location in Baltimore.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mary Elizabeth Richert M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Mary Richert reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1376887844 (Maryland)
- 3,530 clinicians in this Medicare group
Denver, CO 80206
- Reassigned Medicare billing, Colorado enrollment
- 281 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medstar Franklin Square Medical Center
Acute Care Hospitals · Rosedale, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20814 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BETHESDA, MD 20814
BETHESDA, MD 20814
BETHESDA, MD 20814
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mary Richert's NPI number?
The NPI number for Mary Richert is 1184159535. It was assigned to this individual provider in the NPPES registry on April 24, 2017.
Where is Mary Richert located?
Mary Richert practices at 8600 Old Georgetown Rd, Bethesda, MD 20814. The listed phone number is (301) 896-3100.
What is Mary Richert's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Mary Richert enrolled in Medicare?
Yes. Mary Richert is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mary Richert's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Richert reassigns Medicare benefits to 2 organizations: Medstar Medical Group II LLC (Washington, DC) and National Jewish Health (Denver, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Richert's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mary Richert affiliated with any hospitals?
According to CMS data, Mary Richert is affiliated with Medstar Franklin Square Medical Center.
When was this NPI record last updated?
The NPPES record for Mary Richert was last updated on November 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mary Elizabeth Richert, M.D. · NPI 1184159535
Critical Care Medicine physician in Bethesda, Maryland. Individual provider, active in the CMS NPPES registry since April 24, 2017.
## Identity
- **NPI:** 1184159535 (Entity type: Individual)
- **Enumerated:** April 24, 2017
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** D0095014 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 8600 OLD GEORGETOWN RD, Bethesda, MD 20814-1497
- **Phone:** (301) 896-3100
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group II LLC (NPI 1205562816, Washington, DC); National Jewish Health (NPI 1326015777, Denver, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** November 3, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1184159535) · Data from the CMS NPPES public registry.