Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1104405349 Individual Practitioner Male Practitioner

William Timothy Northquist

Internal Medicine • Plainfield, IN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

William Northquist is a certified Internal Medicine practicing in Plainfield, IN. With approximately 5 years of clinical experience since graduating from Indiana University School Of Medicine in 2021, William Northquist delivers high-quality medical care to the local community at 1100 SOUTHFIELD DR STE 1220.

William Northquist is affiliated with Hendricks County Hospital and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

1100 Southfield Dr Ste 1220

Plainfield, IN 461684499

Telephone 3178383443
Fax 3178383444
Associated Practice Facility / Clinic
🏢 Hendricks County Hospital Facility NPI 1396841219

Medicare Profile & Education

Medical School

Indiana University School Of Medicine

Graduation Year

2021

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Plainfield, IN

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
5 Yrs -15.2 yrs vs City Avg
City Avg: 20.2 Yrs
State Avg: 26.2 Yrs
Regional Practice Density
12 Specialists

Practicing in Plainfield, IN (2204 Statewide)

Telehealth Adoption Rate
8.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Northquist (5 Years) 5 Yrs
Plainfield Specialty Average (20.2 Years) 20.2 Yrs

Medical Specialties & State Licenses

CMS Verified: 2025-08-19
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License IN 01096875A

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Pediatrics

NUCC Taxonomy Code: 208000000X

State License IN 01096875A

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Hospital & Practice Group Affiliations

Hendricks County Hospital

1100 Southfield Dr, Plainfield, IN 461684499

Phone: 3178383443

Secondary Practice Locations

705 Riley Hospital Dr Rm 5837

Indianapolis, IN 462025109

Phone: 3179480003

1411 S Green St

Brownsburg, IN 461122049

Phone: 3178523600

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

13 Associated Practitioners
Dr. Linda Decesare , MD

Internal Medicine

NPI 1083825202

Doctor of Medicine (M.D.)

Dr. Tyler Fromm , MD

Internal Medicine

NPI 1104238435

Doctor of Medicine (M.D.)

Lauren Schultz

Internal Medicine

NPI 1114556768
NPI 1205044195

Doctor of Medicine (M.D.)

Katlin Purlee , PA-C

Physician Assistant

NPI 1306458666

Physician Assistant (Certified)

Jenna Delong

Nurse Practitioner - Family

NPI 1376900225

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
📍
Updated Practice Location June 02, 2025

Registered at 1100 SOUTHFIELD DR STE 1220, PLAINFIELD, IN 461684499 (Tel: 3178383443)

📍
Updated Business Mailing Address June 02, 2025

Registered at 1100 SOUTHFIELD DR STE 1370, PLAINFIELD, IN 461684300 (Tel: 3178375566)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 02, 2025

Pediatrics (License #01096875A in IN)

NPI Profile Active April 05, 2021

NPI status registered as active in NPPES database

📍
Updated Practice Location April 05, 2021

Registered at 705 RILEY HOSPITAL DR RM 5837, INDIANAPOLIS, IN 462025109 (Tel: 3179480003)

📍
Updated Business Mailing Address April 05, 2021

Registered at 705 RILEY HOSPITAL DR RM 5837, INDIANAPOLIS, IN 462025109

👤
Provider Name / Credentials Updated April 05, 2021

Recorded as WILLIAM NORTHQUIST

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 05, 2021

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 05, 2021

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for William Northquist. Be the first to share your experience!

Sign in to leave a review for William Northquist

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1104405349
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 05, 2021
Last Update: August 19, 2025
Sole Proprietor: Yes

Mailing Address

1100 Southfield Dr Ste 1370

Plainfield, IN 461684300

Phone: 3178375566

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.