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

Aaron Lee Haag, DO

Individual provider Internal Medicine Physician · NPI 1669934600

Aaron Lee Haag, DO is an Internal Medicine Physician in Hershey, Pennsylvania. Practices as a sole proprietor and works from 3 locations. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2019
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

500 University Dr
Hershey, PA 17033-2360
Phone: (800) 243-1455
Show map & directions

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

Additional practice locations (2)

  • 1307 Federal St Ste B300, Pittsburgh, PA 15212-4775 — (412) 359-3751
  • 4727 Friendship Ave Ste 200, Pittsburgh, PA 15224-1778 — (412) 235-5810

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OS022136 (PA)

Record details

NPI number1669934600
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 1, 2019
Last updated in NPPESJune 23, 2026
Certification dateJune 23, 2026
Mailing address500 University Dr, Hershey, PA 17033-2360

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