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

Dr. Mary-Margaret Langston Allen, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1699118257

Dr. Mary-Margaret Langston Allen, MD is a Pathology in Nashville, Tennessee. Graduated from Florida State University College of Medicine in 2013, 13 years ago. Practices with Acla PC, a 12-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
13
Trained at
Florida State University College of Medicine
Licensed in
FL
In the registry since
2013
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

2000 Church St
Nashville, TN 37236-5848
Phone: (615) 284-7950
Fax: (615) 284-5750
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence ME130875 (FL)

Record details

NPI number1699118257
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 14, 2013
Last updated in NPPESSeptember 22, 2025
Certification dateSeptember 22, 2025

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Also practisesHEMATOLOGY
Medical schoolFLORIDA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Acla Pc — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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