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

Mark A Castellaw, MD

Individual provider Internal Medicine Physician · NPI 1114928793

Mark A Castellaw, MD is an Internal Medicine in Germantown, Tennessee. Qualified in 1981, 45 years ago. Practices with Baptist Memorial Medical Group, Inc, a 571-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
45
Licensed in
TN
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

8040 Wolf River Blvd Ste 200
Germantown, TN 38138-1775
Phone: (901) 726-0200
Fax: (901) 278-3050
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 14060 (TN)

Record details

NPI number1114928793
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 9, 2005
Last updated in NPPESOctober 25, 2016
Mailing addressPo Box 405827, Atlanta, GA 30384-5827

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice Baptist Memorial Medical Group, Inc. — 571 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Germantown