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DR. ARMIN TADAYYON MD, MBA
NPI 1487280400
Anesthesiology in Elgin, IL

Active since March 21, 2020PECOS EnrolledAccepts Medicare Assignment
1425 N RANDALL RD, ELGIN, IL 60123(847) 742-9800(847) 429-2032 Get Directions Write a Review

NPPES record last updated: July 30, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 4, 2025, Feb 20, 2025, Feb 25, 2022 and 3 more (6 updates tracked since 2020).

About Dr. Armin Tadayyon Md, Mba NPPES

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

DR. ARMIN TADAYYON MD, MBA (NPI 1487280400) is an individual anesthesiology provider in Elgin, Illinois, licensed in Illinois (036.173742) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1487280400
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. ARMIN TADAYYONCredential: MD, MBA
Location Address1425 N RANDALL RDElgin, IL 60123-2300
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900 · Fax (847) 390-4757
Phone(847) 742-9800
Fax(847) 429-2032
Sole ProprietorNo
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2021
Enumeration DateMarch 21, 2020
Last NPPES UpdateJuly 30, 20256 updates tracked since enumeration
NPPES CertifiedJuly 30, 2025
✔ NPI 1487280400 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 036.173742
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1425 N RANDALL RD, Elgin, IL 60123
Open in Google Maps ↗

Secondary Practice Locations 2

Location 177 Goodell St Ste 550Buffalo, NY 14203-1258 · Phone (716) 829-6104
Location 21601 Parkview AveRockford, IL 61107-1822 · Phone (847) 812-6497

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

Dr. Armin Tadayyon Md, Mba 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 ID1456870526
PECOS Enrollment IDI20250522000850
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 Reassignment

Medicare enrollment records show Armin Tadayyon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Advocate Health And Hospitals Corporation
24 mi
General Acute Care Hospital
3815 HIGHLAND AVE
Downers Grove, IL 60515
  • Reassigned Medicare billing, Illinois enrollment
  • 4,870 clinicians in this Medicare group
NPI 1578670543 (630) 275-5900

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare 2

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

Advocate Sherman Hospital

Acute Care Hospitals · Elgin, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140030
Location1425 North Randall RoadElgin, IL 60123 · Kane County
Emergency services Birthing friendly

Advocate Good Shepherd Hospital

Acute Care Hospitals · Barrington, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140291
Location450 West Highway 22Barrington, IL 60010 · Lake County
Emergency services Birthing friendly

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.

TONIA C HANSON PA-C
Physician Assistant
1425 N RANDALL RD, SUITE 404
ELGIN, IL 60123
Kane County (224) 783-8129
NICOLE CARPENTER
Counselor (Mental Health)
1425 N RANDALL RD
ELGIN, IL 60123
Kane County (847) 742-9800
JACLYN MASTRANGELI
Nurse Practitioner (Family)
1425 N RANDALL RD
ELGIN, IL 60123
Kane County (847) 742-9800
DR. WESLEY DANIEL ROBERTS MD
Radiology (Diagnostic Radiology)
1425 N RANDALL RD
ELGIN, IL 60123
Kane County (224) 783-8998
JOHN CORCORAN MD
Emergency Medicine
1425 N RANDALL RD
ELGIN, IL 60123
Kane County (847) 742-9800
SARA RANDAZZO
Nurse Practitioner (Adult Health)
1425 N RANDALL RD
ELGIN, IL 60123
Kane County (224) 742-9800
DR. RICHARD PATRICE ROUSSEAU MD
Anesthesiology
1425 N RANDALL RD
ELGIN, IL 60123
Kane County (847) 742-9800
EMMA COHEN MSW
Social Worker
1425 N RANDALL RD
ELGIN, IL 60123
Kane County (847) 742-9800

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 Armin Tadayyon's NPI number?

The NPI number for Armin Tadayyon is 1487280400. It was assigned to this individual provider in the NPPES registry on March 21, 2020.

Where is Armin Tadayyon located?

Armin Tadayyon practices at 1425 N Randall Rd, Elgin, IL 60123. The listed phone number is (847) 742-9800.

What is Armin Tadayyon's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Armin Tadayyon enrolled in Medicare?

Yes. Armin Tadayyon 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 organization bills Medicare for Armin Tadayyon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Armin Tadayyon reassigns Medicare benefits to Advocate Health And Hospitals Corporation (Downers Grove, IL). The 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 Armin Tadayyon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Armin Tadayyon affiliated with any hospitals?

According to CMS data, Armin Tadayyon is affiliated with Advocate Sherman Hospital and Advocate Good Shepherd Hospital.

When was this NPI record last updated?

The NPPES record for Armin Tadayyon was last updated on July 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.