Mark Greenwell, MD

Nephrology

20+ years in practiceNPI: 1184681371Licensed in OKLicensed in TX

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Credentials & Recognition

Specialties

Nephrology

NPI sub-specialties

Internal Medicine, Nephrology207RN0300X

Internal Medicine, Nephrology207RN0300X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

20+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#24

Top Nephrologists in Oklahoma, 2026

Nephrology · Oklahoma · 2026

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Frequently Asked Questions about Dr. Mark Greenwell, MD

Where does Dr. Mark Greenwell, MD practice?+
Dr. Mark Greenwell, MD practices in Texas, TX. 635 STONE AVE PARIS, TX 754609342.
What is Dr. Mark Greenwell, MD's phone number?+
Dr. Mark Greenwell, MD's practice phone is 903-785-3300. Office contact information is verified on the PBCMMG profile.
What does Dr. Mark Greenwell, MD specialize in?+
Dr. Mark Greenwell, MD's primary specialty is Nephrology.
Is Dr. Mark Greenwell, MD board certified?+
Board certification status for Dr. Mark Greenwell, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Mark Greenwell, MD been practicing?+
Dr. Mark Greenwell, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. Mark Greenwell, MD's NPI number?+
Dr. Mark Greenwell, MD's National Provider Identifier (NPI) is 1184681371, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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