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

William Timothy Northquist

Individual provider Pediatrics Physician · NPI 1104405349

William Timothy Northquist is an Internal Medicine in Plainfield, Indiana. Graduated from Indiana University School of Medicine in 2021, 5 years ago. Practices with Hendricks County Hospital, a 340-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
5
Trained at
Indiana University School of Medicine
Licensed in
IN
In the registry since
2021
Specialties on file
2
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Practice location Address checks out

1100 Southfield Dr Ste 1220
Plainfield, IN 46168-4499
Phone: (317) 838-3443
Fax: (317) 838-3444
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1411 S Green St, Brownsburg, IN 46112-2049 — (317) 852-3600
  • 705 Riley Hospital Dr Rm 5837, Indianapolis, IN 46202-5109 — (317) 948-0003

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 01096875A (IN)
Pediatrics Physician Taxonomy 208000000X · Licence 01096875A (IN)

Record details

NPI number1104405349
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedApril 5, 2021
Last updated in NPPESAugust 19, 2025
Certification dateAugust 19, 2025
Mailing address1100 Southfield Dr Ste 1370, Plainfield, IN 46168-4300

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice Hendricks County Hospital — 340 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Plainfield