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JAMES HWANG M.D.
NPI 1134489446
Internal Medicine in Chicago, IL

Active since May 21, 2012PECOS EnrolledAccepts Medicare Assignment
3517 W ARTHINGTON ST, CHICAGO, IL 60624(872) 588-3510 Get Directions Write a Review

NPPES record last updated: February 5, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About James Hwang M.d. NPPES

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

JAMES HWANG M.D. (NPI 1134489446) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036138423) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, is affiliated with Mt Sinai Hospital Medical Center, and is a graduate of University Of Wisconsin School Of Medicine (2012).

NPPES Registry Identity

NPI1134489446
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJAMES HWANGCredential: M.D.
Location Address3517 W ARTHINGTON STChicago, IL 60624-4165
Mailing Address3517 W Arthington StChicago, IL 60624-4165 · (872) 588-3510
Phone(872) 588-3510
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2012
Enumeration DateMay 21, 2012
Last NPPES UpdateFebruary 5, 2016
✔ NPI 1134489446 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036138423
Definition
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.
3517 W ARTHINGTON ST, Chicago, IL 60624
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.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

James Hwang M.d. 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 ID7911120662
PECOS Enrollment IDI20160913000837
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

2

Medicare enrollment records show James Hwang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lawndale Christian Health Center
Same address
Federally Qualified Health Center (FQHC)
3517 W ARTHINGTON ST
Chicago, IL 60624
  • Reassigned Medicare billing, Illinois enrollment
  • 147 clinicians in this Medicare group
NPI 1326215450 (872) 588-3000
Saint Anthony Health Affiliates
1.3 mi
Multi-Specialty
2875 WEST 19TH STREET
Chicago, IL 60623
  • Reassigned Medicare billing, Illinois enrollment
  • 210 clinicians in this Medicare group
NPI 1295010056 (773) 484-4425

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

Hospital Affiliations CMS Care Compare

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

Mt Sinai Hospital Medical Center

Acute Care Hospitals · Chicago, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140018
Location1500 S Fairfield AveChicago, IL 60608 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60624 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 4

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers15 claims58 services$6.25 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$14.44 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$61.89 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
3 suppliers16 claims16 services$187.81 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 6

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

LAWNDALE CHRISTIAN HEALTH CENTER
Clinic/Center (Federally Qualified Health Center (FQHC))
3517 W ARTHINGTON ST
CHICAGO, IL 60624
Cook County (872) 588-3000
MRS. MA GUADALUPE RAMIREZ
Health Educator
3517 W ARTHINGTON ST
CHICAGO, IL 60624
Cook County (872) 588-3000
MRS. JAYME LYNN STINE MD
Pediatrics
3517 W ARTHINGTON ST
CHICAGO, IL 60624
Cook County (872) 588-3510
FAMILY FOCUS INC.
Community/Behavioral Health
3517 W ARTHINGTON ST
CHICAGO, IL 60624
Cook County (773) 722-5057
KRISTEN SONESON ZEIGLER FNP
Nurse Practitioner (Family)
3517 W ARTHINGTON ST
CHICAGO, IL 60624
Cook County (872) 588-3000
HANNAH JACOBSON
Nurse Practitioner (Family)
3517 W ARTHINGTON ST
CHICAGO, IL 60624
Cook County (872) 588-3510

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Hwang's NPI number?

The NPI number for James Hwang is 1134489446. It was assigned to this individual provider in the NPPES registry on May 21, 2012.

Where is James Hwang located?

James Hwang practices at 3517 W Arthington St, Chicago, IL 60624. The listed phone number is (872) 588-3510.

What is James Hwang's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is James Hwang enrolled in Medicare?

Yes. James Hwang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for James Hwang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Hwang reassigns Medicare benefits to 2 organizations: Lawndale Christian Health Center (Chicago, IL) and Saint Anthony Health Affiliates (Chicago, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Hwang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Hwang accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list James Hwang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is James Hwang affiliated with any hospitals?

According to CMS data, James Hwang is affiliated with Mt Sinai Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for James Hwang was last updated on February 5, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.