Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Lindsay Ann Ritter, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1881057420

Mrs. Lindsay Ann Ritter, MD practises Emergency Medicine in Baltimore, Maryland. Graduated from Georgetown University School of Medicine in 2016, 10 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
10
Trained at
Georgetown University School of Medicine
Licensed in
MD
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

110 S Paca St 2nd Fl
Baltimore, MD 21201
Phone: (301) 801-7932
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence D0089442 (MD)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence D0089442 (MD)

Record details

NPI number1881057420
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 31, 2016
Last updated in NPPESAugust 12, 2020
Certification dateAugust 12, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Pacemaker insertion or repair 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients59
Services billed 167 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Medstar Medical Group II LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3717 clinicians in the practice; 12 are shown here.

Other providers in Baltimore