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PRESTON R JACOB M.D.
NPI 1790226900
Emergency Medicine in Chicago, IL

Active since March 20, 2017PECOS Enrolled
836 W WELLINGTON AVE, CHICAGO, IL 60657(773) 975-1600 Get Directions Write a Review

NPPES record last updated: August 4, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 4, 2025, May 21, 2022, Apr 22, 2022 and 5 more (8 updates tracked since 2017).

About Preston R Jacob M.d. NPPES

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

PRESTON R JACOB M.D. (NPI 1790226900) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (036.150694) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1790226900
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NamePRESTON R JACOBCredential: M.D.
Location Address836 W WELLINGTON AVEChicago, IL 60657-5147
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Phone(773) 975-1600
Sole ProprietorNo
Enumeration DateMarch 20, 2017
Last NPPES UpdateAugust 4, 20258 updates tracked since enumeration
NPPES CertifiedAugust 4, 2025
✔ NPI 1790226900 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in IL · 036.150694✔ Licensed in IL · 125.070476
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
836 W WELLINGTON AVE, Chicago, IL 60657
Open in Google Maps ↗

Secondary Practice Locations 3

Location 11740 W Taylor StChicago, IL 60612-7232 · Phone (866) 600-2273
Location 21775 Dempster StPark Ridge, IL 60068-1143 · Phone (847) 723-2210
Location 32525 S Michigan AveChicago, IL 60616-2315 · Phone (312) 567-2000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Preston R Jacob M.d. 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 Preston Jacob reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Board Of Trustees Of The University Of Illinois
0.8 mi
Primary Care
3656 N HALSTED ST
Chicago, IL 60613
  • Reassigned Medicare billing, Illinois enrollment
  • 2,127 clinicians in this Medicare group
NPI 1588815401 (734) 726-4697
Advocate Health And Hospitals Corp.
1.0 mi
Cardiovascular Disease
3118 N ASHLAND AVE
Chicago, IL 60657
  • Reassigned Medicare billing, Illinois enrollment
  • 4,870 clinicians in this Medicare group
NPI 1487951711 (773) 880-9722

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 4

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
128 services124 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
45 services44 patients
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.
24 services24 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60657 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
$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.

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. ROBERT R TURELLI JR. MD
Emergency Medicine
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5878
JAYME L. CAPPA
Speech-Language Pathologist
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-7988
DR. CHIMUANYA OKOLI MD
Internal Medicine (Sleep Medicine)
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5424
DEBRA FARIDA
Nurse Anesthetist, Certified Registered
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 975-1600
MALIK SAHOURI DO
Anesthesiology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5187
SERGIO GUTIERREZ NUNEZ MD
Anesthesiology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5187
MS. NOREEN MARIE SHERIDAN RD. LDN,CDE
Dietitian, Registered
836 W WELLINGTON AVE, FOOD AND NUTRITION DEPT.
CHICAGO, IL 60657
Cook County (773) 296-5912
ANN M HARVEY APN, CNP
Nurse Practitioner
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-3646

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 Preston Jacob's NPI number?

The NPI number for Preston Jacob is 1790226900. It was assigned to this individual provider in the NPPES registry on March 20, 2017.

Where is Preston Jacob located?

Preston Jacob practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 975-1600.

What is Preston Jacob's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Preston Jacob enrolled in Medicare?

Yes. Preston Jacob is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Preston Jacob's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Preston Jacob reassigns Medicare benefits to 2 organizations: The Board Of Trustees Of The University Of Illinois (Chicago, IL) and Advocate Health And Hospitals Corp. (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 Preston Jacob'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 Preston Jacob was last updated on August 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.