ALAN J. SIMMONS MD
NPI 1083818561
Hospitalist in Mchenry, IL

Active since June 11, 2007PECOS EnrolledAccepts Medicare Assignment
4309 W MEDICAL CENTER DR, MOB A102, MCHENRY, IL 60050(815) 338-6600 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 21, 2022, Jul 5, 2017 (2 updates tracked since 2017).

About Alan J. Simmons Md NPPES

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

ALAN J. SIMMONS MD (NPI 1083818561) is an individual hospitalist provider in Mchenry, Illinois, licensed in Illinois (036136647) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and is a graduate of University Of Louisville School Of Medicine (2007).

NPPES Registry Identity

NPI1083818561
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameALAN J. SIMMONSCredential: MD
Location Address4309 W MEDICAL CENTER DR, MOB A102Mchenry, IL 60050-8419
Mailing Address4309 W Medical Center Dr, Mob A102Mchenry, IL 60050-8419 · (815) 338-6600
Sole ProprietorNo
Medical School CMSUniversity Of Louisville School Of MedicineGraduated 2007
Enumeration DateJune 11, 2007
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
NPI 1083818561 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Licenses Licensed in IL · 036136647 Licensed in TN · 45612
Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 43972 (KY), 45612 (TN)
4309 W MEDICAL CENTER DR, Mchenry, IL 60050

Other Identifiers 10

Other50031519KY · Passport-cma
Other000000695031KY · Anthem-cma
OtherP01027597TN · Rr Medicare
Other122637KY · Siho-cma
Other4321218TN · Blue Cross-blue Shield
Medicaid201013040IN
Other000057094UKY · Humana-cma
Medicaid7100149020KY
Medicaid1527128TN
Other2400911KY · Cigna-cma

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Alan J. Simmons 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 ID6204010283
PECOS Enrollment IDI20151112002410
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.

Areas of Expertise CMS Part B claims 2

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.

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.
323 services303 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
59 services58 patients

Hospital Affiliations CMS Care Compare 3

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

Northwestern Medicine Mchenry

Acute Care Hospitals · Mchenry, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140116
Location4201 Medical Center DriveMchenry, IL 60050 · Mc Henry County
Emergency services Birthing friendly

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140130
Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County
Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60050 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
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
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.

Pediatrics
4309 W MEDICAL CENTER DR, SUITE B310
MCHENRY, IL 60050
Specialist
4309 W MEDICAL CENTER DR, SUITE B301
MCHENRY, IL 60050
Nurse Anesthetist, Certified Registered
4309 W MEDICAL CENTER DR, SUITE A201
MCHENRY, IL 60050
Anesthesiology
4309 W MEDICAL CENTER DR, SUITE A201
MCHENRY, IL 60050
Nurse Practitioner (Pediatrics)
4309 W MEDICAL CENTER DR, B310
MCHENRY, IL 60050
Anesthesiology
4309 W MEDICAL CENTER DR, SUITE A201
MCHENRY, IL 60050
Internal Medicine (Critical Care Medicine)
4309 W MEDICAL CENTER DR, SUITE B210
MCHENRY, IL 60050
Internal Medicine (Adolescent Medicine)
4309 W MEDICAL CENTER DR, B202
MCHENRY, IL 60050

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 Alan Simmons's NPI number?

The NPI number for Alan Simmons is 1083818561. It was assigned to this individual provider in the NPPES registry on June 11, 2007.

Where is Alan Simmons located?

Alan Simmons practices at 4309 W Medical Center Dr Mob A102, Mchenry, IL 60050. The listed phone number is (815) 338-6600.

What is Alan Simmons's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Alan Simmons enrolled in Medicare?

Yes. Alan Simmons 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.

Is Alan Simmons affiliated with any hospitals?

According to CMS data, Alan Simmons is affiliated with Northwestern Medicine Mchenry, Northwestern Lake Forest Hospital and Northwestern Medicine Central Dupage Hospital.

When was this NPI record last updated?

The NPPES record for Alan Simmons was last updated on July 21, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.