OMAR MASOOD AHMED M.D.
NPI 1639312556
Internal Medicine - Critical Care Medicine in Chicago, IL

Q: What is Omar Ahmed's NPI number?

The NPI number for Omar Ahmed is 1639312556. It was assigned to this individual provider in the NPPES registry on April 7, 2009.

Q: What is Omar Ahmed's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Omar Ahmed was last updated on October 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.

Active since April 07, 2009PECOS EnrolledAccepts Medicare Assignment

2222 W DIVISION ST, CHICAGO, IL 60622(877) 737-4636 Get Directions Write a Review

NPPES record last updated: October 24, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 18, 2022, May 10, 2022, May 4, 2022 and 3 more (6 updates tracked since 2016).

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About Omar Masood Ahmed M.d. NPPES

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

OMAR MASOOD AHMED M.D. (NPI 1639312556) is an individual critical care medicine provider in Chicago, Illinois, licensed in Illinois (036129383) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Presence Saint Joseph Hospital - Elgin, and maintains a secondary practice location in Elgin.

NPPES Registry Identity

NPI1639312556

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameOMAR MASOOD AHMEDCredential: M.D.

Location Address2222 W DIVISION STChicago, IL 60622-2717

Mailing Address2222 W Division StChicago, IL 60622-2717

Phone(877) 737-4636

Sole ProprietorYes

Medical School CMSOtherGraduated 2009

Enumeration DateApril 7, 2009

Last NPPES UpdateOctober 24, 20246 updates tracked since enumeration

NPPES CertifiedOctober 24, 2024

✔ NPI 1639312556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

Licenses✔ Licensed in IL · 036129383✔ Licensed in GA · 070514✔ Licensed in KS · 04-45116

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036129383 (IL)

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 070514 (GA), 036129383 (IL)

2222 W DIVISION ST, Chicago, IL 60622

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Secondary Practice Location 1

Location 177 N Airlite StElgin, IL 60123-4912 · Phone (847) 695-3200

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.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

Omar Masood Ahmed M.d. 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 ID2365698669

PECOS Enrollment IDI20120801000630

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

Medicare enrollment records show Omar Ahmed reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cep America Illinois Intensivists

0.1 mi

Critical Care Medicine

2233 W DIVISION ST
Chicago, IL 60622

Reassigned Medicare billing, Illinois enrollment
99 clinicians in this Medicare group

NPI 1871071837 (312) 770-2000

Integrated Rehab Consultants LLC

3.2 mi

Physical Medicine & Rehabilitation

401 N MICHIGAN AVENUE
Chicago, IL 60611

Reassigned Medicare billing, Illinois enrollment
94 clinicians in this Medicare group

NPI 1528379195 (725) 710-9208

Radial Health Sc

3.3 mi

Physical Medicine & Rehabilitation

401 N MICHIGAN AVE STE 1200
Chicago, IL 60611

Reassigned Medicare billing, Illinois enrollment
59 clinicians in this Medicare group

NPI 1215954185 (847) 289-5727

Ascension NE Wisconsin, Inc

153 mi

General Acute Care Hospital

500 S OAKWOOD RD
Oshkosh, WI 54904

Reassigned Medicare billing, Wisconsin enrollment
194 clinicians in this Medicare group

NPI 1912527193 (920) 223-2000

Ascension Medical Group-Fox Valley Wisconsin, Inc

163 mi

Multi-Specialty

101 MAIN ST
Neenah, WI 54956

Reassigned Medicare billing, Wisconsin enrollment
444 clinicians in this Medicare group

NPI 1730126392 (920) 727-4200

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 6

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.

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

1,305 services120 patients

Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310

A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.

239 services48 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.

207 services91 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.

85 services53 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

43 services27 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

21 services12 patients

Hospital Affiliations CMS Care Compare

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

Presence Saint Joseph Hospital - Elgin

Acute Care Hospitals · Elgin, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140217

Location77 N Airlite StreetElgin, IL 60123 · Kane County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60622 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 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

2 suppliers12 claims12 services$8.03 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

2 suppliers14 claims84 services$1.38 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.

LEON J FRAZIN, M.D.

Internal Medicine (Cardiovascular Disease)

2222 W DIVISION ST, STE 250
CHICAGO, IL 60622

Cook County (773) 276-0988

DR. YUKHOL LERTSBURAPA MD

Legal Medicine

2222 W DIVISION ST, SUITE 260
CHICAGO, IL 60622

Cook County (773) 486-3535

NORTH CHICAGO ORTHOPAEDIC CLINIC

Orthopaedic Surgery

2222 W DIVISION ST, SUITE 235
CHICAGO, IL 60622

Cook County (773) 486-7200

MARCELO N MUNOZ M.D.

Otolaryngology

2222 W DIVISION ST, SUITE 230
CHICAGO, IL 60622

Cook County (773) 342-0993

DR. LUBOV A KLEMINE M.D.

Family Medicine

2222 W DIVISION ST, SUITE 200
CHICAGO, IL 60622

Cook County (773) 395-8444

CHICAGO LASER VEIN INSTITUTE LLC

Thoracic Surgery (Cardiothoracic Vascular Surgery)

2222 W DIVISION ST, SUITE 110
CHICAGO, IL 60622

Cook County (773) 489-3795

SAMUEL F CASTILLO M.D.

Internal Medicine (Gastroenterology)

2222 W DIVISION ST, SUITE 235
CHICAGO, IL 60622

Cook County (773) 342-6800

MARY L KLODNYCKY, M.D., LTD.

Internal Medicine (Cardiovascular Disease)

2222 W DIVISION ST, STE 250
CHICAGO, IL 60622

Cook County (773) 276-0988

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 Omar Ahmed's NPI number?

The NPI number for Omar Ahmed is 1639312556. It was assigned to this individual provider in the NPPES registry on April 7, 2009.

Where is Omar Ahmed located?

Omar Ahmed practices at 2222 W Division St, Chicago, IL 60622. The listed phone number is (877) 737-4636.

What is Omar Ahmed's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Omar Ahmed enrolled in Medicare?

Yes. Omar Ahmed 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 Omar Ahmed's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Omar Ahmed reassigns Medicare benefits to 5 organizations: Cep America Illinois Intensivists (Chicago, IL), Integrated Rehab Consultants LLC (Chicago, IL), Radial Health Sc (Chicago, IL), Ascension NE Wisconsin, Inc (Oshkosh, WI) and Ascension Medical Group-Fox Valley Wisconsin, Inc (Neenah, WI). 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 Omar Ahmed's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Omar Ahmed accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Omar Ahmed 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 Omar Ahmed affiliated with any hospitals?

According to CMS data, Omar Ahmed is affiliated with Presence Saint Joseph Hospital - Elgin.

When was this NPI record last updated?

The NPPES record for Omar Ahmed was last updated on October 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.