Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mark D Schleinitz, MD

Individual provider Internal Medicine Physician · NPI 1588611081

Mark D Schleinitz, MD practises Internal Medicine in Providence, Rhode Island. Graduated from Stanford University School of Medicine in 1995, 31 years ago. Practices with Brown Medicine, a 221-clinician group and accepts Medicare assignment. Licensed in Rhode Island.

Years since qualifying
31
Trained at
Stanford University School of Medicine
Licensed in
RI
In the registry since
2006
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

593 Eddy St Apc 5
Providence, RI 02903-4923 Not confirmed with CMS for 16 years — call before visiting
Phone: (401) 444-4741
Fax: (401) 444-4445
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD10971 (RI)

Record details

NPI number1588611081
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 28, 2006
Last updated in NPPESMarch 23, 2010

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Brown Medicine — 221 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients162
Services billed 374 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Rhode Island Hospital Hospital · Providence, RI

Colleagues at Brown Medicine

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 221 clinicians in the practice; 12 are shown here.

Other providers in Providence