Dr. Geoffrey C. Fenner, MD
- Medicare services, 2024
- 470
- Medicare patients, 2024
- 204
- Part D claims, 2024
- 416
- Hospital affiliations
- 1
- Industry payments
- $4,221
- Practice address
- 512 Green Bay Rd, Kenilworth, IL 60043
- Practice phone
- Call (847) 716-2400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fenner Plastic Surgery & Medical Spa
Surgery Center - Not Medicare-Certified · Kenilworth, Illinois
Find Dr. Fenner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Geoffrey C. Fenner is a plastic surgeon in Kenilworth, Illinois
Dr. Fenner practices at Fenner Plastic Surgery & Medical Spa in Kenilworth, Illinois.
Dr. Fenner's NPI, 1629176003, was assigned on September 20, 2006. Dr. Fenner graduated from Indiana University School of Medicine in 1988. Dr. Fenner holds Illinois license 036081864.
- NPI
- 1629176003NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739111337
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 716-2400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Geoffrey C. Fenner practices at Fenner Plastic Surgery & Medical Spa in Kenilworth, Illinois
Dr. Fenner's primary practice is Fenner Plastic Surgery & Medical Spa, at 512 Green Bay Rd, Kenilworth, IL 60043. The practice phone is (847) 716-2400.
- Fenner Plastic Surgery & Medical Spa512 Green Bay Rd, Kenilworth, IL 60043Phone(847) 716-2400
Source: Dmand AI Affiliation Data
Dr. Geoffrey C. Fenner is affiliated with 2 sites of care and 1 medical group
Dr. Fenner's primary practice is Fenner Plastic Surgery & Medical Spa in Kenilworth, Illinois. Dr. Fenner is also affiliated with Evanston Hospital. The medical group on file is Fenner Plastic Surgery & Medical Spa. Dr. Fenner's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Geoffrey C. Fenner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fenner practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fenner Plastic Surgery & Medical Spa | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Geoffrey C. Fenner is one of 162 plastic surgeons in Illinois
Plastic surgery is Dr. Fenner's primary specialty in the NPI Registry, under taxonomy code 208200000X. Dr. Fenner is licensed in Illinois.
Specialties and state licenses
- Plastic surgery, IllinoisPrimary
Plastic surgeons near Dr. Fenner
Counts of plastic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Geoffrey C. Fenner billed Medicare for 470 services in 2024
CMS data shows 470 Medicare services from Dr. Fenner across 17 procedure codes in 2024, for 204 Medicare patients. Medicare paid $81,351 for them.
Dr. Fenner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2932024: 24716%
- Office and hospital visits
- 2023: 2212024: 2231%
Where Dr. Fenner's Medicare services took place, 2024
- In an office41989%
- In a facility5111%
Dr. Fenner compared with the Illinois median for plastic surgeons, 2024
- Dr. Fenner
- Illinois median
- Medicare services
- 470vs 736.4 times
- Medicare patients
- 204vs 563.6 times
- Part D claims
- 344vs 2414.3 times
Medians across 117 plastic surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Fenner's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Fenner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fenner and other plastic surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Geoffrey C. Fenner treated 204 Medicare patients in 2024, average age 74
CMS counts 204 Medicare patients who saw Dr. Fenner in 2024. The largest group is 65 to 74, with 108 patients. 74% of them have high cholesterol, and 47% have high blood pressure. Their average risk score is 0.82, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fenner's median patient age at 54, with 86% women.
Dr. Fenner's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fenner's Medicare patients by sex, 2024
- Women15978%
- Men4522%
Chronic conditions among Dr. Fenner's Medicare patients, 2024
- High cholesterol74%
- High blood pressure47%
- Arthritis46%
- Cancer29%
- Anxiety27%
- Osteoporosis25%
- Mood disorders19%
- Depression17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fenner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women86%
- Men14%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Geoffrey C. Fenner wrote 416 Medicare Part D claims in 2024
In 2024, Dr. Fenner wrote 416 Medicare Part D claims for 106 patients. 96% of them were for generic drugs. CMS names the drug for 344 of them, across 7 drugs with 11 or more claims each, at $1,661 in total drug cost. In 2023, CMS named 328 claims across 7 drugs.
Dr. Fenner's Part D claims by kind of drug, 2024
- Generic401 claims96%
- Brand-name15 claims4%
Dr. Fenner's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Fenner's Part D claims, 2024
- Opioids18%75 of 416 claims
- Antibiotics39%162 of 416 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3282024: 3445%
Drugs named by CMS: 7 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Geoffrey C. Fenner ranks in the 99th percentile for mastectomy in Medicare
Dr. Fenner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 92 procedures of mastectomy by Dr. Fenner, more than 99% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Fenner ranks in Medicare procedure volume
- Melanoma (skin cancer) excision
- 95th percentile137 procedures
- Mastectomy
- 99th percentile92 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Geoffrey C. Fenner received $4,221 in industry payments from 2016 to 2025
CMS Open Payments shows 72 general payments to Dr. Fenner from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 63% of the total. Merz North America, Inc. paid the most, $1,484.
General payments to Dr. Fenner by program year, 2016 to 2025
General payments to Dr. Fenner by kind, 2016 to 2025
- Food and beverage$2,65163%
- Travel and lodging$1,25430%
- Education$1664%
- Speaker and faculty fees$1504%
Companies that paid Dr. Fenner the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Geoffrey C. Fenner graduated from Indiana University School of Medicine
Dr. Fenner graduated from Indiana University School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Geoffrey C. Fenner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Geoffrey C. Fenner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Geoffrey C. Fenner's NPI number?
Dr. Geoffrey C. Fenner's NPI number is 1629176003. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Geoffrey C. Fenner?
Dr. Geoffrey C. Fenner is a plastic surgeon in Kenilworth, Illinois. The primary specialty in the NPI Registry is Plastic Surgery Physician (taxonomy code 208200000X).
Where does Dr. Geoffrey C. Fenner practice?
Dr. Fenner practices at 512 Green Bay Rd, Kenilworth, IL 60043. Dr. Fenner's primary practice is Fenner Plastic Surgery & Medical Spa in Kenilworth, Illinois.
What is Dr. Geoffrey C. Fenner's office phone number?
The practice phone on file for Dr. Fenner is (847) 716-2400.
What is Dr. Geoffrey C. Fenner's medical license number?
Dr. Fenner holds Illinois license 036081864.
Which hospitals is Dr. Geoffrey C. Fenner affiliated with?
Dr. Fenner is affiliated with Evanston Hospital.
What medical group is Dr. Geoffrey C. Fenner part of?
Dr. Fenner is linked to Fenner Plastic Surgery & Medical Spa.
Does Dr. Geoffrey C. Fenner accept Medicare?
Yes. CMS data shows Dr. Fenner billed Medicare for 470 services in 2024, and Dr. Fenner accepts Medicare assignment.
How many Medicare patients does Dr. Geoffrey C. Fenner see?
CMS counts 204 Medicare patients who saw Dr. Fenner in 2024, with an average age of 74.
What services does Dr. Geoffrey C. Fenner bill to Medicare?
In 2024, Dr. Fenner's most billed Medicare services were office visit, new patient (99202), office visit, established patient (99212) and surgery: skin and soft tissue (14301).
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Where did Dr. Geoffrey C. Fenner go to medical school?
Dr. Fenner graduated from Indiana University School of Medicine in 1988.
What drugs does Dr. Geoffrey C. Fenner prescribe most?
In 2024 Medicare Part D data, Dr. Fenner's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Ondansetron ODT and Hydrocodone-Acetaminophen.
Has Dr. Geoffrey C. Fenner received payments from drug or device companies?
CMS Open Payments shows $4,221 in general payments to Dr. Fenner from 12 companies from 2016 to 2025. The largest total came from Merz North America, Inc.
How long has Dr. Geoffrey C. Fenner been practicing?
Dr. Fenner graduated from medical school in 1988, 38 years ago.
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