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

Donald S Hayes, MD

Individual provider Internal Medicine Physician · NPI 1417934589

Donald S Hayes, MD is an Internal Medicine Physician in Wilmington, Delaware. Licensed in Delaware. Registered with an NPI since 2005.

Licensed in
DE
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

3301 Lancaster Ave Ste 9
Wilmington, DE 19805
Phone: (302) 656-2069
Fax: (302) 656-5611
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C10001822 (DE)

Record details

NPI number1417934589
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 29, 2005
Last updated in NPPESApril 1, 2013

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