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

Douglas Flagg, MD

Individual provider Rheumatology Physician · NPI 1821178013

Douglas Flagg, MD is a Rheumatology Physician in South Euclid, Ohio. Licensed in Ohio. Registered with an NPI since 2006.

Licensed in
OH
In the registry since
2006
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

1611 S Green Rd # 65
South Euclid, OH 44121-4129
Phone: (216) 291-4050
Fax: (216) 691-3524
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 35-056239 (OH)

Record details

NPI number1821178013
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 16, 2006
Last updated in NPPESNovember 16, 2010
Mailing addressPo Box 8792, Belfast, ME 04915-8792

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