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

Dr. Gregory S Schlessinger, MD

Individual provider Nephrology Physician · NPI 1255313441

Dr. Gregory S Schlessinger, MD practises Nephrology in Lone Tree, Colorado. Graduated from Vanderbilt University School of Medicine in 1993, 33 years ago. Practices with Rocky Mountain Kidney Care LLC, a 16-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado and Wyoming.

Years since qualifying
33
Trained at
Vanderbilt University School of Medicine
Licensed in
CO, WY
In the registry since
2005
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

9777 S Yosemite St Ste 110
Lone Tree, CO 80124-3115
Phone: (720) 696-0852
Fax: (720) 696-0892
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1444 S Potomac St Ste 215, Aurora, CO 80012-4533 — (720) 500-3439
  • 1760 Prairie Ave Ste 100, Cheyenne, WY 82009-4833 — (307) 263-4022

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 37524 (CO)
Nephrology Physician Taxonomy 207RN0300X · Licence 13028C (WY)

Record details

NPI number1255313441
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 15, 2005
Last updated in NPPESApril 4, 2023
Certification dateApril 4, 2023

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolVANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Rocky Mountain Kidney Care Llc — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations7 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 patients107
Services billed 300 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $492 20 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Rocky Mountain Kidney Care LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 16 clinicians in the practice; 12 are shown here.

Other providers in Lone Tree