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

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1649891961

Marianne Riordan, MD is an Endocrinology in Philadelphia, Pennsylvania. Qualified in 2016, 10 years ago. Practices with Temple Faculty Practice Plan Inc, a 1,314-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
10
Licensed in
PA
In the registry since
2020
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

3401 N Broad St
Philadelphia, PA 19140-5103
Phone: (215) 707-4600
Fax: (215) 707-5599
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence MD490718 (PA)

Record details

NPI number1649891961
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 27, 2020
Last updated in NPPESJanuary 30, 2026
Certification dateJanuary 30, 2026

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Temple Faculty Practice Plan Inc — 1314 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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