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

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1336433440

Mary Katharine Lytwyn, MD is a Student in an Organized Health Care Education/Training Program in Houston, Texas. Practices as a sole proprietor and works from 2 locations. Licensed in North Carolina and Texas.

Licensed in
NC, TX
In the registry since
2011
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Houston, TX

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 2255 E Mossy Oaks Rd, Spring, TX 77389-1811 — (346) 305-5000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence P9132 (TX)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 173193 (NC)

Record details

NPI number1336433440
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 6, 2011
Last updated in NPPESMarch 17, 2018

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 patients157
Services billed 243 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

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