Nicole Geissen, D.O.
NPI 1841422482 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicole Geissen, D.O. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Chicago, IL (NPI 1841422482).
Provider details
- NPI number
- 1841422482
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 036132599 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,200 across 25 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 880 W Central Rd Ste 5000Arlington Heights, IL 60005-2355Phone: (847) 618-3800Fax: (847) 618-3809
Registry dates
- Enumerated
- 2009-08-16
- Last updated
- 2024-05-03
- Certified
- 2024-05-03
Frequently asked questions
- What is Nicole Geissen's NPI number?
- Nicole Geissen's National Provider Identifier (NPI) is 1841422482, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicole Geissen's specialty?
- Nicole Geissen is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Nicole Geissen located?
- Nicole Geissen's practice location on file with NPPES is 1901 W Harrison St Ste 3350, Chicago, IL 60612.
- What is Nicole Geissen's phone number?
- The practice phone number listed in the NPPES registry for Nicole Geissen is (312) 864-6000.
- Does Nicole Geissen accept Medicare?
- Nicole Geissen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicole Geissen's NPI active?
- Yes — Nicole Geissen's NPI (1841422482) is active in the NPPES registry as of the last update on 2024-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.