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

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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