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MALLORY HAPP MD, MPH
NPI 1366247272
Surgery in Chicago, IL

Active since February 14, 2025PECOS Enrolled
420 E SUPERIOR ST, CHICAGO, IL 60611(312) 503-7975 Get Directions Write a Review

NPPES record last updated: June 10, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mallory Happ Md, Mph NPPES

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

MALLORY HAPP MD, MPH (NPI 1366247272) is an individual surgery provider in Chicago, Illinois, licensed in Illinois (125087494) and active in the NPI registry since February 2025. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366247272
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameMALLORY HAPPCredential: MD, MPH
Location Address420 E SUPERIOR STChicago, IL 60611-4494
Mailing Address420 E Superior StChicago, IL 60611-4494 · (312) 503-7975
Phone(312) 503-7975
Sole ProprietorNo
Enumeration DateFebruary 14, 2025
Last NPPES UpdateJune 10, 2026
NPPES CertifiedJune 10, 2026
✔ NPI 1366247272 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in IL · 125087494
Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

420 E SUPERIOR ST, Chicago, IL 60611
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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 (PECOS)

Mallory Happ Md, Mph 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
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.

ERMYAS ASFHA KAHSAI
Student in an Organized Health Care Education/Training Program
420 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (312) 503-8194
OLIVIA CONG
Student in an Organized Health Care Education/Training Program
420 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (312) 503-8194
DR. ERICA GHIGNONE M.D.
Psychiatry & Neurology (Psychiatry)
420 E SUPERIOR ST, RUBLOFF BUILDING 12TH FLOOR
CHICAGO, IL 60611
Cook County (312) 503-8194
SEBASTIAN ALEXANDER HOAK MD
Psychiatry & Neurology (Child & Adolescent Psychiatry)
420 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (312) 227-4000
KATHRYN MOTON-OSPINO MD
Pediatrics
420 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (312) 503-7975
ARRIX RYCE MD
Radiology (Vascular & Interventional Radiology)
420 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (312) 503-7975
DR. RAVI RAJARAM M.D.
Surgery
420 E SUPERIOR ST, RUBLOFF 12TH FLOOR
CHICAGO, IL 60611
Cook County (312) 503-7975
MUKUND GANDE MD
Anesthesiology
420 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (609) 721-1940

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 Mallory Happ's NPI number?

The NPI number for Mallory Happ is 1366247272. It was assigned to this individual provider in the NPPES registry on February 14, 2025.

Where is Mallory Happ located?

Mallory Happ practices at 420 E Superior St, Chicago, IL 60611. The listed phone number is (312) 503-7975.

What is Mallory Happ's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mallory Happ enrolled in Medicare?

Yes. Mallory Happ is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mallory Happ was last updated on June 10, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.