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

Johnasan M Gregory, MD

Individual provider Specialist · NPI 1699774869

Johnasan M Gregory, MD is an Internal Medicine in Sherman, Texas. Qualified in 1984, 42 years ago. Practices with Conway Regional Medical Center Inc, a 130-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
42
Licensed in
TX
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

300 N Highland Ave Ste 340
Sherman, TX 75092-7392
Phone: (903) 957-0233
Fax: (903) 957-0263
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G8150 (TX)
Specialist Taxonomy 174400000X · Licence G8150 (TX)

Record details

NPI number1699774869
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2005
Last updated in NPPESApril 16, 2012
Mailing address300 N Highland Ave Ste 340, Sherman, TX 75092-7392

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Conway Regional Medical Center Inc — 130 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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