GRANT CONNELL HALLOCK DO
NPI 1225666357
Internal Medicine - Critical Care Medicine in Park Ridge, IL

Q: What is Grant Hallock's NPI number?

The NPI number for Grant Hallock is 1225666357. It was assigned to this individual provider in the NPPES registry on April 1, 2020.

Q: What is Grant Hallock's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Grant Hallock was last updated on March 28, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 01, 2020PECOS EnrolledAccepts Medicare Assignment

1775 DEMPSTER ST, PARK RIDGE, IL 60068(847) 723-2210(847) 723-6987 Get Directions Write a Review

NPPES record last updated: March 28, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Grant Connell Hallock Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GRANT CONNELL HALLOCK DO (NPI 1225666357) is an individual critical care medicine provider in Park Ridge, Illinois, licensed in Illinois (036.166239) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with St Joseph Hospital, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1225666357

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameGRANT CONNELL HALLOCKCredential: DO

Location Address1775 DEMPSTER STPark Ridge, IL 60068-1143

Mailing Address1646 River St Unit 701Des Plaines, IL 60016-8418 · (858) 414-0117

Phone(847) 723-2210

Fax(847) 723-6987

Sole ProprietorNo

Medical School CMSOtherGraduated 2020

Enumeration DateApril 1, 2020

Last NPPES UpdateMarch 28, 2024

NPPES CertifiedApril 11, 2023

✔ NPI 1225666357 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in IL · 036.166239

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

1775 DEMPSTER ST, Park Ridge, IL 60068

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Grant Connell Hallock Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840600425

PECOS Enrollment IDI20250723003878

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Joseph Hospital

Acute Care Hospitals · Nashua, NH

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number300011

Location172 Kinsley StNashua, NH 03060 · Hillsborough County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60068 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

1 supplier12 claims12 services$914.32 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. STACEY K ROLINE PA-C

Physician Assistant (Surgical)