Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Karen Imma C Gellada, MD

Individual provider Family Medicine Physician · NPI 1285897967

Karen Imma C Gellada, MD practises Undersea and Hyperbaric Medicine in Byron, Illinois. Qualified in 2006, 20 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
20
Licensed in
IL, WI
In the registry since
2008
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

130 Kysor Dr
Byron, IL 61010-9402
Phone: (309) 672-4977
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1425 N Randall Rd, Elgin, IL 60123-2300 — (224) 783-3450
  • 2900 W Oklahoma Ave, Milwaukee, WI 53215-4330 — (414) 649-6000

Specialties & licences

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician (primary) Taxonomy 2083P0011X · Licence 036-127497 (IL)
Family Medicine Physician Taxonomy 207Q00000X · Licence 036-127497 (IL)
Family Medicine Physician Taxonomy 207Q00000X · Licence 101961 (WI)
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Taxonomy 2083P0011X · Licence 101961 (WI)

Record details

NPI number1285897967
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 3, 2008
Last updated in NPPESJanuary 28, 2026
Certification dateJanuary 28, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyUNDERSEA AND HYPERBARIC MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of tissue 134 times · 88th percentile
Removal of nail tissue 1–10 times
Removal of skin lesions 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients189
Services billed 502 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Advocate Health and Hospitals Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3079 clinicians in the practice; 12 are shown here.

Other providers in Byron