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WILLIAM R HARPER MD
NPI 1629131149
Internal Medicine in Chicago, IL

Active since December 18, 2006PECOS Enrolled
737 N MICHIGAN AVE, SUITE 2020, CHICAGO, IL 60611(855) 947-7371(312) 284-4124 Get Directions Write a Review

NPPES record last updated: August 16, 2018. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Aug 16, 2018, Apr 13, 2017 (2 updates tracked since 2017).

About William R Harper Md NPPES

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

WILLIAM R HARPER MD (NPI 1629131149) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036097080) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629131149
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM R HARPERCredential: MD
Location Address737 N MICHIGAN AVE, SUITE 2020Chicago, IL 60611
Mailing Address5119 S Dorchester AveChicago, IL 60615-4117 · (855) 947-7371 · Fax (312) 284-4124
Phone(855) 947-7371
Fax(312) 284-4124
Sole ProprietorYes
Enumeration DateDecember 18, 2006
Last NPPES UpdateAugust 16, 20182 updates tracked since enumeration
✔ NPI 1629131149 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 · 036097080
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.

737 N MICHIGAN AVE, Chicago, IL 60611
Open in Google Maps ↗

Other Identifiers 1

Medicaid036097080IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William R Harper 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60611 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.

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
1 supplier12 claims12 services$215.65 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.

DR. KEN KROMASH D.D.S.
Dentist (General Practice)
737 N MICHIGAN AVE, STE 1305
CHICAGO, IL 60611
Cook County (312) 642-8830
DANIEL J NAGLE MD
Orthopaedic Surgery (Hand Surgery)
737 N MICHIGAN AVE, SUITE 700
CHICAGO, IL 60611
Cook County (312) 337-6960
THOMAS A WIEDRICH MD
Orthopaedic Surgery (Hand Surgery)
737 N MICHIGAN AVE, STE 700
CHICAGO, IL 60611
Cook County (312) 337-6960
DRS BELL STROMBERG HARRIS NAGLE WIEDRICH & STOGIN LTD
Orthopaedic Surgery (Hand Surgery)
737 N MICHIGAN AVE, SUITE 700
CHICAGO, IL 60611
Cook County (312) 337-6960
DR. LISA C. MAZZULLO M.D.
Specialist
737 N MICHIGAN AVE, SUITE 950
CHICAGO, IL 60611
Cook County (312) 751-7515
DR. STEVEN A FISHMAN DDS
Dentist (General Practice)
737 N MICHIGAN AVE, SUITE 2110
CHICAGO, IL 60611
Cook County (312) 640-8800
JOYCE C. BOOKSHESTER,PSY.D., P.C.
Psychologist
737 N MICHIGAN AVE, SUITE 2240
CHICAGO, IL 60611
Cook County (312) 943-0950
WILLIAM M CLARK JR. M.D.
Psychiatry & Neurology (Psychiatry)
737 N MICHIGAN AVE, SUITE 1200
CHICAGO, IL 60611
Cook County (312) 373-7300

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 William Harper's NPI number?

The NPI number for William Harper is 1629131149. It was assigned to this individual provider in the NPPES registry on December 18, 2006.

Where is William Harper located?

William Harper practices at 737 N Michigan Ave Suite 2020, Chicago, IL 60611. The listed phone number is (855) 947-7371.

What is William Harper's specialty?

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

Is William Harper enrolled in Medicare?

Yes. William Harper is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Harper was last updated on August 16, 2018. NPI Profile syncs with the weekly NPPES data releases published by CMS.