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ANNE M STEY MD
NPI 1124253935
Surgery - Trauma Surgery in Chicago, IL

Active since May 22, 2009PECOS EnrolledAccepts Medicare Assignment
259 E ERIE ST FL 16, CHICAGO, IL 60611(312) 695-8918(312) 695-3644 Get Directions Write a Review

NPPES record last updated: October 16, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 16, 2019, Jul 25, 2019, Apr 22, 2019 (3 updates tracked since 2019).

About Anne M Stey Md NPPES

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

ANNE M STEY MD (NPI 1124253935) is an individual trauma surgery provider in Chicago, Illinois, licensed in Illinois (036150160) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1124253935
Entity TypeIndividualFemale
Primary Taxonomy2086S0127X
Provider Legal NameANNE M STEYCredential: MD
Location Address259 E ERIE ST FL 16Chicago, IL 60611-2987
Mailing Address680 N Lake Shore DrChicago, IL 60611-4546 · (312) 695-6868
Phone(312) 695-8918
Fax(312) 695-3644
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 2009
Enumeration DateMay 22, 2009
Last NPPES UpdateOctober 16, 20193 updates tracked since enumeration
✔ NPI 1124253935 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
Licenses✔ Licensed in IL · 036150160✔ Licensed in CA · A120814
Definition
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 036150160 (IL), A120814 (CA)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
259 E ERIE ST FL 16, Chicago, IL 60611
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11 Gustave Levy placeNew York, NY 10029 · Phone (212) 241-6591
Location 2680 N Lake Shore DrChicago, IL 60611-4546 · Phone (312) 695-6868

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

Anne M Stey Md 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 ID5991088643
PECOS Enrollment IDI20190802000656
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

3

Medicare enrollment records show Anne Stey reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwestern Medical Faculty Foundation
34 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
Icahn School Of Medicine At Mount Sinai
718 mi
Obstetrics & Gynecology
7901 BROADWAY
Elmhurst, NY 11373
  • Reassigned Medicare billing, New York enrollment
  • 836 clinicians in this Medicare group
NPI 1578817540 (718) 334-1591
University Of California Sfgh Medical Group
1,859 mi
Vascular Surgery
1001 POTRERO AVE RM 3A
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 87 clinicians in this Medicare group
NPI 1033913959 (628) 206-8265

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 8

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
197 services74 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.
73 services50 patients
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.
32 services32 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
32 services28 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
29 services29 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
15 services11 patients

Hospital Affiliations CMS Care Compare

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

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

Other Providers at the Same Location NPPES 12

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

JASMINE JOHNSON MS, RD, LD
Dietitian, Registered
259 E ERIE ST FL 16
CHICAGO, IL 60611
Cook County (312) 695-7070
DR. ALEXANDRA BAUMANN D.O.
Internal Medicine (Gastroenterology)
259 E ERIE ST FL 16
CHICAGO, IL 60611
Cook County (312) 695-5620
AMY ROSE ARBUS RD
Dietitian, Registered
259 E ERIE ST FL 16
CHICAGO, IL 60611
Cook County (312) 695-7070
DR. SARA HOFFMAN PHD
Psychologist (Clinical)
259 E ERIE ST FL 16
CHICAGO, IL 60611
Cook County (312) 629-2620
HAZEL DHATES ASUNIO DOMINGO PA-C
Physician Assistant
259 E ERIE ST FL 16
CHICAGO, IL 60611
Cook County (312) 695-5620
MRS. JENNIFER A CARVAJAL APN
Nurse Practitioner (Family)
259 E ERIE ST FL 16
CHICAGO, IL 60611
Cook County (312) 695-6868
DR. KATHRYN NOTH TOMASINO PH.D.
Psychologist (Clinical)
259 E ERIE ST FL 16, LAVIN FAMILY PAVILION
CHICAGO, IL 60611
Cook County (312) 629-2620
RICHARD GREEN MD
Internal Medicine (Gastroenterology)
259 E ERIE ST FL 16
CHICAGO, IL 60611
Cook County (312) 695-5620

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 Anne Stey's NPI number?

The NPI number for Anne Stey is 1124253935. It was assigned to this individual provider in the NPPES registry on May 22, 2009.

Where is Anne Stey located?

Anne Stey practices at 259 E Erie St Fl 16, Chicago, IL 60611. The listed phone number is (312) 695-8918.

What is Anne Stey's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is Anne Stey enrolled in Medicare?

Yes. Anne Stey 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 Anne Stey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anne Stey reassigns Medicare benefits to 3 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL), Icahn School Of Medicine At Mount Sinai (Elmhurst, NY) and University Of California Sfgh Medical Group (San Francisco, CA). 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 Anne Stey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Anne Stey affiliated with any hospitals?

According to CMS data, Anne Stey is affiliated with Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Anne Stey was last updated on October 16, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.