DR. HAO ZHANG M.D. PHD
NPI 1346637485
Internal Medicine - Gastroenterology in Huntley, IL

Q: What is Hao Zhang's NPI number?

The NPI number for Hao Zhang is 1346637485. It was assigned to this individual provider in the NPPES registry on April 15, 2015.

Q: What is Hao Zhang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Hao Zhang was last updated on April 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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 15, 2015PECOS EnrolledAccepts Medicare Assignment

10350 HALIGUS RD, SUITE 210, HUNTLEY, IL 60142(847) 535-6284(847) 759-6284 Get Directions Write a Review

NPPES record last updated: April 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 21, 2026, Jan 20, 2023, Sep 11, 2018 (3 updates tracked since 2018).

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About Dr. Hao Zhang M.d. Phd NPPES

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

DR. HAO ZHANG M.D. PHD (NPI 1346637485) is an individual gastroenterology provider in Huntley, Illinois, licensed in Illinois (036156365) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Loyola Gottlieb Memorial Hospital, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1346637485

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. HAO ZHANGCredential: M.D. PHD

Location Address10350 HALIGUS RD, SUITE 210Huntley, IL 60142

Mailing Address611 W Park StUrbana, IL 61801-2529

Phone(847) 535-6284

Fax(847) 759-6284

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateApril 15, 2015

Last NPPES UpdateApril 21, 20263 updates tracked since enumeration

NPPES CertifiedApril 21, 2026

✔ NPI 1346637485 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in IL · 036156365✔ Licensed in OH · 35.134766

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

10350 HALIGUS RD, Huntley, IL 60142

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Hao Zhang M.d. Phd 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 ID42614653

PECOS Enrollment IDI20210804001574

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.

Medicare Billing Reassignments

Medicare enrollment records show Hao Zhang reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwestern Medical Faculty Foundation

12 mi

Multi-Specialty

DEPT 5777
Carol Stream, IL 60122

Reassigned Medicare billing, Illinois enrollment
4,817 clinicians in this Medicare group

NPI 1346235314 (855) 694-2866

Rush University Medical Center

33 mi

Internal Medicine

2011 YORK ROAD, 2ND FLOOR
Oak Brook, IL 60523

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Rush University Medical Group
2,169 clinicians in this Medicare group

NPI 1801375696 (630) 724-1310

Loyola University Medical Center

37 mi

General Practice

2160 S 1ST AVE
Maywood, IL 60153

Reassigned Medicare billing, Illinois enrollment
1,138 clinicians in this Medicare group

NPI 1336159961 (708) 216-3215

Beacon Medical Group, Inc.

97 mi

Family Medicine

900 I ST
La Porte, IN 46350

Reassigned Medicare billing, Indiana enrollment
734 clinicians in this Medicare group

NPI 1639129117 (219) 324-1700

Carle West Physician Group Inc

120 mi

Family Medicine

1302 FRANKLIN AVE STE 3400
Normal, IL 61761

Reassigned Medicare billing, Illinois enrollment
698 clinicians in this Medicare group

NPI 1467074138 (309) 556-8295

Carle Health Medical Group

143 mi

Internal Medicine

611 W PARK ST
Urbana, IL 61801

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Carle Health Care Incorporated
2,516 clinicians in this Medicare group

NPI 1154653947 (217) 383-8300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

108 services107 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

93 services92 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

86 services83 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

71 services71 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

63 services62 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

49 services44 patients

Hospital Affiliations CMS Care Compare 5

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

Loyola Gottlieb Memorial Hospital

Acute Care Hospitals · Melrose Park, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140008

Location701 West North AveMelrose Park, IL 60160 · Cook County

Emergency services

Northwestern Medicine Mchenry

Acute Care Hospitals · Mchenry, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number140116

Location4201 Medical Center DriveMchenry, IL 60050 · Mc Henry County

Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140242

Location25 North Winfield RoadWinfield, IL 60190 · Du Page County

Emergency services Birthing friendly

Loyola University Medical Center

Acute Care Hospitals · Maywood, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140276

Location2160 S 1st AvenueMaywood, IL 60153 · Cook County

Emergency services Birthing friendly

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140281

Location251 E Huron StChicago, IL 60611 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60142 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

$127.46 typical visit price

range $54.80 – $168.44

Typical copayment $31.86 (range $13.70 – $42.11)

Most-billed visit code 99204

Established Patient

$97.25 typical visit price

range $17.16 – $136.56

Typical copayment $24.31 (range $4.29 – $34.14)

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.

Other Providers at the Same Location NPPES 14

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

MRS. JENNIFER MAGNUSON APN

Nurse Practitioner (Family)