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

Dr. John R Diggs, PHD, ND

Individual provider Pharmacist · NPI 1528167038

Dr. John R Diggs, PHD, ND is a Pharmacist in Washington, District of Columbia. Licensed in District of Columbia. Registered with an NPI since 2006.

Licensed in
DC
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

50 Irving St NW
Washington, DC 20422-0001
Phone: (202) 745-8000
Fax: (202) 745-8639
Show map & directions

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

Specialties & licences

Pharmacist (primary) Taxonomy 183500000X · Licence 1542 (DC)

Record details

NPI number1528167038
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , ND
Sole proprietorNo
NPI enumeratedSeptember 21, 2006
Last updated in NPPESJuly 8, 2007

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