MICHAEL ANDREW HERNANDEZ MD
NPI 1831683960
Internal Medicine - Critical Care Medicine in Elgin, IL
About Michael Andrew Hernandez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL ANDREW HERNANDEZ MD (NPI 1831683960) is an individual critical care medicine provider in Elgin, Illinois, licensed in Illinois (036.164496) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and maintains a secondary practice location in New Berlin.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted 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
Michael Andrew Hernandez 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.
Medicare Billing Reassignments
2Medicare enrollment records show Michael Hernandez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1629441027 (Illinois)
- 4,870 clinicians in this Medicare group
West Allis, WI 53227
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Sherman Hospital
Acute Care Hospitals · Elgin, ILAdvocate Christ Hospital & Medical Center
Acute Care Hospitals · Oak Lawn, ILAdvocate Lutheran General Hospital
Acute Care Hospitals · Park Ridge, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60123 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Michael Hernandez's NPI number?
The NPI number for Michael Hernandez is 1831683960. It was assigned to this individual provider in the NPPES registry on June 21, 2018.
Where is Michael Hernandez located?
Michael Hernandez practices at 1425 N Randall Rd, Elgin, IL 60123. The listed phone number is (224) 783-8745.
What is Michael Hernandez's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Michael Hernandez enrolled in Medicare?
Yes. Michael Hernandez 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 Michael Hernandez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Hernandez reassigns Medicare benefits to 2 organizations: Advocate Health And Hospitals Corporation (Downers Grove, IL) and Aurora Medical Group, Inc. (West Allis, 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 Michael Hernandez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Hernandez accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, CareSource (Common Ground Healthcare) and Oscar Health list Michael Hernandez 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 Michael Hernandez affiliated with any hospitals?
According to CMS data, Michael Hernandez is affiliated with Advocate Sherman Hospital, Advocate Christ Hospital & Medical Center and Advocate Lutheran General Hospital.
When was this NPI record last updated?
The NPPES record for Michael Hernandez was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Michael Andrew Hernandez, MD · NPI 1831683960
Critical Care Medicine physician in Elgin, Illinois. Individual provider, active in the CMS NPPES registry since June 21, 2018.
## Identity
- **NPI:** 1831683960 (Entity type: Individual)
- **Enumerated:** June 21, 2018
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 036.164496 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1425 N RANDALL RD, Elgin, IL 60123-2300
- **Phone:** (224) 783-8745
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Advocate Health And Hospitals Corporation (NPI 1578670543, Downers Grove, IL); Aurora Medical Group, Inc. (NPI 1457592735, West Allis, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 2018
## Record status
- **NPPES last updated:** August 5, 2026
- **Other identifiers:** Medicaid 100242833 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1831683960) · Data from the CMS NPPES public registry.