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RYAN GEISERT
NPI 1154901205
Anesthesiology in Naperville, IL

Active since April 13, 2021PECOS EnrolledAccepts Medicare Assignment
801 S WASHINGTON ST, NAPERVILLE, IL 60540(630) 527-3000 Get Directions Write a Review

NPPES record last updated: March 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 13, 2026, Apr 13, 2021 (2 updates tracked since 2021).

About Ryan Geisert NPPES

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

RYAN GEISERT (NPI 1154901205) is an individual anesthesiology provider in Naperville, Illinois, licensed in Illinois (036176430) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Edward Hospital, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1154901205
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameRYAN GEISERT
Location Address801 S WASHINGTON STNaperville, IL 60540-7499
Mailing Address1035 W Van Buren St Apt 1601Chicago, IL 60607-0101 · (402) 617-1430
Phone(630) 527-3000
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateApril 13, 2021
Last NPPES UpdateMarch 13, 20262 updates tracked since enumeration
NPPES CertifiedMarch 13, 2026
✔ NPI 1154901205 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 036176430
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.
801 S WASHINGTON ST, Naperville, IL 60540
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

Ryan Geisert 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 ID1052888039
PECOS Enrollment IDI20260428000235
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 Ryan Geisert reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dupage Valley Anesthesiologists, Ltd.
0.4 mi
Anesthesiology
801 S WASHINGTON ST
Naperville, IL 60540
  • Reassigned Medicare billing, Illinois enrollment
  • 94 clinicians in this Medicare group
NPI 1457309817 (630) 355-0450

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

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

Edward Hospital

Acute Care Hospitals · Naperville, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140231
Location801 South WashingtonNaperville, IL 60540 · Du Page 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.

DR. HAFEZ M. SAMI M.D.
Pain Medicine (Interventional Pain Medicine)
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Dupage County (630) 348-3300
MICHAEL J. HARTMANN MD
Emergency Medicine
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Dupage County (630) 527-3000
SEEMA ISHAQ JEELANI D.O.
Emergency Medicine
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Dupage County (630) 527-3000
CORTNEY COLE MD
Family Medicine (Hospice and Palliative Medicine)
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Dupage County (630) 527-3000
EDWARD HOSPITAL
General Acute Care Hospital
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Dupage County (630) 655-0450
DR. HODA A. EL- ASMAR MD
Internal Medicine (Infectious Disease)
801 S WASHINGTON ST, EDWARD HOSPITAL, ADMINISTRATION, VPMA OFFICE
NAPERVILLE, IL 60540
Dupage County (630) 527-5647
AMAAR MASOOD MALIK DO
Radiology (Diagnostic Radiology)
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Dupage County (630) 527-3200
DR. SANGITA RANGALA M.D.
Emergency Medicine
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Dupage County (630) 527-3288

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 Ryan Geisert's NPI number?

The NPI number for Ryan Geisert is 1154901205. It was assigned to this individual provider in the NPPES registry on April 13, 2021.

Where is Ryan Geisert located?

Ryan Geisert practices at 801 S Washington St, Naperville, IL 60540. The listed phone number is (630) 527-3000.

What is Ryan Geisert's specialty?

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

Is Ryan Geisert enrolled in Medicare?

Yes. Ryan Geisert 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 Ryan Geisert's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Geisert reassigns Medicare benefits to Dupage Valley Anesthesiologists, Ltd. (Naperville, 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 Ryan Geisert's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Ryan Geisert affiliated with any hospitals?

According to CMS data, Ryan Geisert is affiliated with Edward Hospital.

When was this NPI record last updated?

The NPPES record for Ryan Geisert was last updated on March 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.