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

Grant Connell Hallock, DO

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1225666357

Grant Connell Hallock, DO is an Internal Medicine in Park Ridge, Illinois. Qualified in 2020, 6 years ago. Practices with Incare LLC, a 62-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
6
Licensed in
IL
In the registry since
2020
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.

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Practice location Address checks out

1775 Dempster St
Park Ridge, IL 60068-1143
Phone: (847) 723-2210
Fax: (847) 723-6987
Show map & directions

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

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 036.166239 (IL)

Record details

NPI number1225666357
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 1, 2020
Last updated in NPPESMarch 28, 2024
Certification dateApril 11, 2023
Mailing address1646 River St Unit 701, Des Plaines, IL 60016-8418

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Incare Llc — 62 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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