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

Mark Dewey Sifford, MD

Individual provider Pulmonary Disease Physician · NPI 1538155791

Mark Dewey Sifford, MD is an Internal Medicine in Jonesboro, Arkansas. Graduated from University of Arkansas College of Medicine in 1985, 41 years ago. Practices with St Bernards Hospital Inc, a 185-clinician group and accepts Medicare assignment. Licensed in Arkansas.

Years since qualifying
41
Trained at
University of Arkansas College of Medicine
Licensed in
AR
In the registry since
2005
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 Carson St
Jonesboro, AR 72401-3104
Phone: (870) 932-1198
Fax: (870) 910-7700
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence C6883 (AR)

Record details

NPI number1538155791
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 23, 2005
Last updated in NPPESApril 28, 2008

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated 1985 (41 years in practice)
Group practice St Bernards Hospital Inc. — 185 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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