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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALEXIS DIAZ-RAMOS
NPI 1669836706
Emergency Medicine in Chicago, IL

Active since April 05, 2016PECOS EnrolledAccepts Medicare Assignment
1740 W TAYLOR ST, CHICAGO, IL 60612(866) 600-2273 Get Directions Write a Review

NPPES record last updated: September 24, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 24, 2026, Aug 4, 2026, Jun 5, 2025 and 3 more (6 updates tracked since 2020).

About Alexis Diaz-ramos NPPES

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

ALEXIS DIAZ-RAMOS (NPI 1669836706) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (036148929) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, is affiliated with Proctor Hospital, and maintains 10 additional practice locations.

NPPES Registry Identity

NPI1669836706
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameALEXIS DIAZ-RAMOS
Location Address1740 W TAYLOR STChicago, IL 60612-7232
Mailing AddressHc 1 Box 11124Carolina, PR 00987-9659 · (787) 568-6727
Phone(866) 600-2273
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateApril 5, 2016
Last NPPES UpdateSeptember 24, 20266 updates tracked since enumeration
NPPES CertifiedSeptember 24, 2026
✔ NPI 1669836706 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in IL · 036148929
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.
1740 W TAYLOR ST, Chicago, IL 60612
Open in Google Maps ↗

Secondary Practice Locations 10

Location 126026 W 12 Mile Rd Ste 202Southfield, MI 48034-1783 · Phone (833) 904-2273
Location 2100 Grove St Ste 115Worcester, MA 01605-2630 · Phone (833) 904-2273
Location 315416 N Florida Ave Ste 203Tampa, FL 33613-1239 · Phone (833) 904-2273
Location 4495 Flatbush Ave Ste C5Brooklyn, NY 11225-3782 · Phone (833) 904-2273
Location 51259 Bedford AveBrooklyn, NY 11216-1813 · Phone (833) 904-2273
Location 64444 The Plz Unit 18Charlotte, NC 28215-2189 · Phone (336) 360-2407
Location 71005 Broadway StQuincy, IL 62301-2834 · Phone (217) 223-1200 · Fax (217) 223-6894
Location 8500 E Main St Ste 105Columbus, OH 43215-5619 · Phone (833) 904-2273
Location 92301 N Meridian StIndianapolis, IN 46208-5729 · Phone (833) 904-2273
Location 1016115 LaSalle StreetSouth Holland,, IL 60473 · Phone (833) 904-2273

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

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

Alexis Diaz-ramos 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 ID345537361
PECOS Enrollment IDI20191112000273
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

14

Medicare enrollment records show Alexis Diaz-ramos reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Epss LLC- Lakeside Series
6.0 mi
Emergency Medicine
850 W IRVING PARK RD
Chicago, IL 60613
  • Reassigned Medicare billing, Illinois enrollment
  • 32 clinicians in this Medicare group
NPI 1861271181 (773) 525-6780
Community First Healthcare Of Illinois, Inc.
7.2 mi
Diagnostic Radiology
5645 W ADDISON ST
Chicago, IL 60634
  • Reassigned Medicare billing, Illinois enrollment
  • 174 clinicians in this Medicare group
NPI 1053102269 (773) 282-7000
Emergency Medicine Physicians Of Cook County LLC
24 mi
Emergency Medicine
20201 CRAWFORD AVE
Olympia Fields, IL 60461
  • Reassigned Medicare billing, Illinois enrollment
  • 41 clinicians in this Medicare group
NPI 1114168929 (330) 493-4443
Illinois Emergency Medicine Specialists, LLC
25 mi
Emergency Medical Services
500 REMINGTON BLVD
Bolingbrook, IL 60440
  • Reassigned Medicare billing, Illinois enrollment
  • 187 clinicians in this Medicare group
NPI 1003150962 (630) 312-5000
Carle Health Medical Group
124 mi
Internal Medicine
611 W PARK ST
Urbana, IL 61801
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Carle Health Care Incorporated
  • 2,516 clinicians in this Medicare group
NPI 1154653947 (217) 383-8300
Osf Multi-Specialty Group
128 mi
Internal Medicine
8600 N STATE ROUTE 91
Peoria, IL 61615
  • Reassigned Medicare billing, Illinois enrollment
  • 2,944 clinicians in this Medicare group
NPI 1154908929 (309) 683-5050
Methodist Medical Center Of Illinois
129 mi
Psychiatric Unit
221 NE GLEN OAK AVE
Peoria, IL 61636
  • Reassigned Medicare billing, Illinois enrollment
  • Also billed through NPI 1265966048 (Illinois)
  • 693 clinicians in this Medicare group
NPI 1275583155 (309) 672-5522
Cityblock Medical Practice, P.A.
161 mi
Internal Medicine
2620 KESSLER BOULEVARD EAST DR STE 110
Indianapolis, IN 46220
  • Reassigned Medicare billing, Florida, Illinois, Indiana, Massachusetts, Michigan and North Carolina enrollments
  • Medicare enrollment name: Cityblock Medical Practice PA
  • 41 clinicians in this Medicare group
NPI 1588296784 (800) 336-1100
Ohio Emergency Professionals Inc
278 mi
Emergency Medicine
50 W BROAD ST
Columbus, OH 43215
  • Reassigned Medicare billing, Ohio enrollment
  • 474 clinicians in this Medicare group
NPI 1982983425 (440) 887-4718
Cityblock Medical Practice, LLC
286 mi
Primary Care
6100 E MAIN ST STE 110
Columbus, OH 43213
  • Reassigned Medicare billing, Ohio enrollment
  • 62 clinicians in this Medicare group
NPI 1013673821 (833) 904-0620

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 3

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.
172 services169 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.
91 services91 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.
14 services13 patients

Hospital Affiliations CMS Care Compare 4

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

Proctor Hospital

Acute Care Hospitals · Peoria, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140013
Location5409 N Knoxville AvePeoria, IL 61614 · Peoria County
Emergency services

Thorek Memorial Hospital

Acute Care Hospitals · Chicago, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number140115
Location850 W Irving Park RdChicago, IL 60613 · Cook County
Emergency services

Pekin Memorial Hospital

Acute Care Hospitals · Pekin, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140120
Location600 South 13th StreetPekin, IL 61554 · Tazewell County
Emergency services

Osf Saint Luke Medical Center

Critical Access Hospitals · Kewanee, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number141325
Location1051 West South StreetKewanee, IL 61443 · Henry County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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.

MRS. CATHLEEN CONWAY JENSEN OTR/L
Occupational Therapist
1740 W TAYLOR ST, C100
CHICAGO, IL 60612
Cook County (312) 996-3700
KELLY M HOYERT PA-C
Physician Assistant (Surgical)
1740 W TAYLOR ST, 3F OCC
CHICAGO, IL 60612
Cook County (312) 355-4300
DR. YI-LOONG COLIN WOON M.D.
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
1740 W TAYLOR ST
CHICAGO, IL 60612
Cook County (866) 600-2273
VIDHI SRIVASTAVA MD
Anesthesiology
1740 W TAYLOR ST
CHICAGO, IL 60612
Cook County (866) 600-2273
AMY PHAM D.O.
Pediatrics (Neonatal-Perinatal Medicine)
1740 W TAYLOR ST
CHICAGO, IL 60612
Cook County (866) 600-2273
WILSON CHING M.D.
Family Medicine
1740 W TAYLOR ST
CHICAGO, IL 60612
Cook County (866) 600-2273
ADRIENNE BERMAN MD
Ophthalmology
1740 W TAYLOR ST
CHICAGO, IL 60612
Cook County (866) 600-2273
JOSEPH S COLLA M.D.
Emergency Medicine
1740 W TAYLOR ST
CHICAGO, IL 60612
Cook County (312) 996-8177

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 Alexis Diaz-ramos's NPI number?

The NPI number for Alexis Diaz-ramos is 1669836706. It was assigned to this individual provider in the NPPES registry on April 5, 2016.

Where is Alexis Diaz-ramos located?

Alexis Diaz-ramos practices at 1740 W Taylor St, Chicago, IL 60612. The listed phone number is (866) 600-2273.

What is Alexis Diaz-ramos's specialty?

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

Is Alexis Diaz-ramos enrolled in Medicare?

Yes. Alexis Diaz-ramos 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 Alexis Diaz-ramos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexis Diaz-ramos reassigns Medicare benefits to 14 organizations: Epss LLC- Lakeside Series (Chicago, IL), Community First Healthcare Of Illinois, Inc. (Chicago, IL), Emergency Medicine Physicians Of Cook County LLC (Olympia Fields, IL), Illinois Emergency Medicine Specialists, LLC (Bolingbrook, IL), Carle Health Medical Group (Urbana, IL) and 9 more organizations, listed in the Medicare section above. 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 Alexis Diaz-ramos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexis Diaz-ramos accept?

Health plans from Anthem Blue Cross and Blue Shield list Alexis Diaz-ramos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Alexis Diaz-ramos affiliated with any hospitals?

According to CMS data, Alexis Diaz-ramos is affiliated with Proctor Hospital, Thorek Memorial Hospital, Pekin Memorial Hospital and Osf Saint Luke Medical Center.

When was this NPI record last updated?

The NPPES record for Alexis Diaz-ramos was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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.