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DR. HARI IYENGAR MD
NPI 1013355973
Family Medicine in Springfield, IL

Active since June 12, 2013PECOS Enrolled
520 N 4TH ST, SPRINGFIELD, IL 62702(217) 757-8100 Get Directions Write a Review

NPPES record last updated: April 7, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 7, 2022, Sep 30, 2021 (2 updates tracked since 2021).

About Dr. Hari Iyengar Md NPPES

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

DR. HARI IYENGAR MD (NPI 1013355973) is an individual family medicine provider in Springfield, Illinois, licensed in Illinois (125063654) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS and maintains a secondary practice location in Tulsa.

NPPES Registry Identity

NPI1013355973
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. HARI IYENGARCredential: MD
Location Address520 N 4TH STSpringfield, IL 62702-5238
Mailing AddressPo Box 19670Springfield, IL 62794-9670 · (217) 757-8100 · Fax (217) 757-8161
Phone(217) 757-8100
Sole ProprietorNo
Enumeration DateJune 12, 2013
Last NPPES UpdateApril 7, 20222 updates tracked since enumeration
NPPES CertifiedApril 7, 2022
✔ NPI 1013355973 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in IL · 125063654✔ Licensed in AL · 37469✔ Licensed in AR · E-13528✔ Licensed in IN · 01084463A✔ Licensed in NY · 303086-01✔ Licensed in LA · 310369✔ Licensed in MI · 4301502824✔ Licensed in MS · 26170✔ Licensed in NC · 2020-03214✔ Licensed in OH · 35.140368✔ Licensed in PA · MD471358✔ Licensed in TN · 60271✔ Licensed in TX · S5189✔ Licensed in MO · 2020041318✔ Licensed in OK · 36935
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
520 N 4TH ST, Springfield, IL 62702
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Secondary Practice Location 1

Location 18211 E Regal Pl Ste 100-103Tulsa, OK 74133-7167 · Phone (561) 678-2026

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Hari Iyengar Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Hari Iyengar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Physicians Immediate Care North Chicago LLC
179 mi
Urgent Care
4211 N CICERO AVE, SUITE 100
Chicago, IL 60641
  • Reassigned Medicare billing, Illinois enrollment
  • 366 clinicians in this Medicare group
NPI 1205814118 (815) 713-2738
Glutality Provider Group, P.A.
1,076 mi
Internal Medicine
5300 BROKEN SOUND BLVD NW STE 200
Boca Raton, FL 33487
  • Reassigned Medicare billing, Kentucky, Michigan, North Carolina, Tennessee, Virginia and West Virginia enrollments
  • Medicare enrollment name: Glutality Provider Group PA
  • 17 clinicians in this Medicare group
NPI 1083256168 (561) 678-2026

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62702 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
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
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 20

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

MRS. AMANDA B HENSON LCSW
Social Worker (Clinical)
520 N 4TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
DR. BASAR CENIK M.D.
Psychiatry & Neurology (Psychiatry)
520 N 4TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
DR. JOSEPH DOUGLAS WRIGHT DO
Family Medicine
520 N 4TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 757-8197
HELEN L MOOSE CNM-MS
Advanced Practice Midwife
520 N 4TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
JANET R ALBERS M.D.
Family Medicine
520 N 4TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
ANNETTE REESE
Community Health Worker
520 N 4TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
AMBER GUYTON
Advanced Practice Midwife
520 N 4TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
ZACHARY SIMS P.A.-C
Physician Assistant
520 N 4TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 757-8100

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 Hari Iyengar's NPI number?

The NPI number for Hari Iyengar is 1013355973. It was assigned to this individual provider in the NPPES registry on June 12, 2013.

Where is Hari Iyengar located?

Hari Iyengar practices at 520 N 4th St, Springfield, IL 62702. The listed phone number is (217) 757-8100.

What is Hari Iyengar's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Hari Iyengar enrolled in Medicare?

Yes. Hari Iyengar is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Hari Iyengar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hari Iyengar reassigns Medicare benefits to 2 organizations: Physicians Immediate Care North Chicago LLC (Chicago, IL) and Glutality Provider Group, P.A. (Boca Raton, FL). 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 Hari Iyengar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Hari Iyengar was last updated on April 7, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.