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

Mark W. Greenwell, MD

Individual provider Nephrology Physician · NPI 1184681371

Mark W. Greenwell, MD is a Nephrology in Paris, Texas. Graduated from University of Texas Medical School at Houston in 1999, 27 years ago. Practices with Tyler Nephrology Associates PA, a 26-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Oklahoma and Texas.

Years since qualifying
27
Trained at
University of Texas Medical School at Houston
Licensed in
OK, TX
In the registry since
2006
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 →

Practice location Address checks out

635 Stone Ave
Paris, TX 75460-9342
Phone: (903) 785-3300
Fax: (903) 785-3310
Show map & directions

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

Additional practice locations (2)

  • 1104 E Lincoln Rd, Idabel, OK 74745-7364 — (903) 785-3300
  • 105 Medical Cir Bldg 3, Sulphur Springs, TX 75482-2138 — (903) 785-3300

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence P3725 (TX)
Nephrology Physician Taxonomy 207RN0300X · Licence 29498 (OK)

Record details

NPI number1184681371
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 1, 2006
Last updated in NPPESApril 20, 2023
Certification dateApril 20, 2023
Mailing address1133 Medical Dr, Tyler, TX 75701-2130

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT HOUSTON
Graduated 1999 (27 years in practice)
Group practice Tyler Nephrology Associates Pa — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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