Dr. John C. Eggenberger, MD
- Medicare services, 2024
- 104
- Medicare patients, 2024
- 121
- Part D claims, 2024
- 180
- Publications
- 5
- Hospital affiliations
- 4
- Practice address
- 24 Frank Lloyd Wright Dr, Ann Arbor, MI 48105
- Practice phone
- Call (734) 712-8150
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
IHA General Surgery
Ann Arbor, Michigan
Find Dr. Eggenberger'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. John C. Eggenberger is a colorectal surgeon in Ann Arbor, Michigan
Dr. Eggenberger practices at IHA General Surgery in Ann Arbor, Michigan.
Dr. Eggenberger's NPI, 1225191844, was assigned on December 18, 2006. Dr. Eggenberger graduated from University Of Michigan Medical School in 1985. Dr. Eggenberger holds Michigan license 4301405869.
- NPI
- 1225191844NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385791748
- NPI enumeration date
- December 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 712-8150
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John C. Eggenberger practices at IHA General Surgery in Ann Arbor, Michigan
Dr. Eggenberger's primary practice is IHA General Surgery, at 24 Frank Lloyd Wright Dr, Ann Arbor, MI 48105 in Washtenaw County. The practice phone is (734) 712-8150.
- IHA General Surgery24 Frank Lloyd Wright Dr, Ann Arbor, MI 48105 · Washtenaw CountyPhone(734) 712-8150
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John C. Eggenberger is affiliated with 7 sites of care and 2 medical groups
Dr. Eggenberger's primary practice is IHA General Surgery in Ann Arbor, Michigan. Dr. Eggenberger is also affiliated with Trinity Health Ann Arbor Hospital. The medical group on file is Trinity Health IHA Medical Group. Dmand AI also links Dr. Eggenberger to 3 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John C. Eggenberger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Eggenberger practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| IHA General Surgery | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John C. Eggenberger is one of 68 colorectal surgeons in Michigan
Colon and rectal surgery is Dr. Eggenberger's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Eggenberger is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dr. Eggenberger is licensed in Michigan.
Specialties and state licenses
- Colon and rectal surgery, MichiganPrimary
Clinical focus
Dmand AI lists colonoscopy, colon removal and hemorrhoids among the conditions Dr. Eggenberger treats.
Colorectal surgeons near Dr. Eggenberger
Counts of colorectal 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. John C. Eggenberger billed Medicare for 104 services in 2024
CMS data shows 104 Medicare services from Dr. Eggenberger across 4 procedure codes in 2024, for 121 Medicare patients. Medicare paid $6,442 for them.
Dr. Eggenberger's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 992024: 8316%
- Surgery
- 2023: 182024: 2117%
Where Dr. Eggenberger's Medicare services took place, 2024
- In an office7168%
- In a facility3332%
Dr. Eggenberger compared with the Michigan median for colorectal surgeons, 2024
- Dr. Eggenberger
- Michigan median
- Medicare services
- 104vs 20850% below
- Medicare patients
- 121vs 15421% below
- Part D claims
- 114vs 15828% below
Medians across 66 colorectal surgeons in Michigan with Dmand AI profiles that report each measure.
Dr. Eggenberger'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. Eggenberger?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Eggenberger and other colorectal surgeons in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John C. Eggenberger treated 121 Medicare patients in 2024, average age 71
CMS counts 121 Medicare patients who saw Dr. Eggenberger in 2024. The largest group is 65 to 74, with 55 patients. 74% of them have high cholesterol, and 68% have high blood pressure. 18% are also on Medicaid. Their average risk score is 1.65, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Eggenberger's median patient age at 59, with 47% women.
Dr. Eggenberger's Medicare patients by age, 2024
Dr. Eggenberger's Medicare patients by sex, 2024
- Women6251%
- Men5949%
Chronic conditions among Dr. Eggenberger's Medicare patients, 2024
- High cholesterol74%
- High blood pressure68%
- Arthritis51%
- Mood disorders33%
- Anxiety31%
- Chronic kidney disease31%
- Depression31%
- Ischemic heart disease31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Eggenberger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John C. Eggenberger wrote 180 Medicare Part D claims in 2024
In 2024, Dr. Eggenberger wrote 180 Medicare Part D claims for 115 patients. 76% of them were for generic drugs. CMS names the drug for 114 of them, across 4 drugs with 11 or more claims each, at $4,540 in total drug cost. In 2023, CMS named 79 claims across 4 drugs.
Dr. Eggenberger's Part D claims by kind of drug, 2024
- Generic136 claims76%
- Brand-name44 claims24%
Dr. Eggenberger'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. Eggenberger's Part D claims, 2024
- Opioids15%27 of 180 claims
- Antibiotics16%28 of 180 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: 792024: 11444%
Drugs named by CMS: 4 in 2024, 4 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. John C. Eggenberger ranks in the 45th percentile for colonoscopy in Medicare
Dr. Eggenberger accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of colonoscopy by Dr. Eggenberger, more than 45% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Eggenberger ranks in Medicare procedure volume
- Colonoscopy
- 45th percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 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. John C. Eggenberger has 5 publications on record
Dmand AI links 5 papers to Dr. Eggenberger in 2022. 2022 was the busiest year, with 2. Dr. Eggenberger's most frequent co-authors are Robert K. Cleary, MD, Darrell A. Campbell, MD and Ann Elizabeth Hutchison.
Dr. Eggenberger's most frequent co-authors
- Robert K. Cleary, MD2 shared papers
- Darrell A. Campbell, MD1 shared paper
- Ann Elizabeth Hutchison1 shared paper
Recent publications by Dr. Eggenberger
See who Dr. Eggenberger researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Eggenberger works with, so you can find a warm path to the right colorectal surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John C. Eggenberger received $6,561 in industry payments from 2021 to 2025
CMS Open Payments shows 13 general payments to Dr. Eggenberger from 3 drug and device companies from 2021 to 2025. Education make up the largest share, 90% of the total. Intuitive Surgical, Inc. paid the most, $6,450.
General payments to Dr. Eggenberger by program year, 2021 to 2025
General payments to Dr. Eggenberger by kind, 2021 to 2025
- Education$5,89990%
- Travel and lodging$3756%
- Food and beverage$2874%
Companies that paid Dr. Eggenberger the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John C. Eggenberger has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Eggenberger, most recently ACS Fellow in 2012.
Awards and honors for Dr. Eggenberger
- 2012
- ACS Fellow
- 1995
- Fellow
- Undated
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. John C. Eggenberger graduated from University Of Michigan Medical School
Dr. Eggenberger graduated from University Of Michigan Medical School in 1985. Dr. Eggenberger is a member of ACS and ASCRS.
- Medical school
- Board certified in colon & rectal surgery
Source: Dmand AI Professional Profile Data
Dr. John C. Eggenberger accepts plans from 11 insurance carriers
Dr. Eggenberger is in network with 11 carriers, including Aetna, Health Alliance Plan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Health Alliance Plan
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +3 more carriersWith a free account
Plan types Dr. Eggenberger accepts, by number of carriers
- Medicare7
- PPO6
- HMO5
- POS5
- EPO3
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. John C. Eggenberger'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. John C. Eggenberger
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. John C. Eggenberger's NPI number?
Dr. John C. Eggenberger's NPI number is 1225191844. It was assigned on December 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John C. Eggenberger?
Dr. John C. Eggenberger is a colorectal surgeon in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. John C. Eggenberger practice?
Dr. Eggenberger practices at 24 Frank Lloyd Wright Dr, Ann Arbor, MI 48105. Dr. Eggenberger's primary practice is IHA General Surgery in Ann Arbor, Michigan. Dmand AI also links Dr. Eggenberger to 3 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. John C. Eggenberger's office phone number?
The practice phone on file for Dr. Eggenberger is (734) 712-8150.
What is Dr. John C. Eggenberger's medical license number?
Dr. Eggenberger holds Michigan license 4301405869.
Which hospitals is Dr. John C. Eggenberger affiliated with?
Dr. Eggenberger is affiliated with Trinity Health Ann Arbor Hospital. Dmand AI links Dr. Eggenberger to 3 more hospitals.
What medical group is Dr. John C. Eggenberger part of?
Dr. Eggenberger is linked to Trinity Health IHA Medical Group. Dmand AI links Dr. Eggenberger to 1 more medical group.
Does Dr. John C. Eggenberger accept Medicare?
Yes. CMS data shows Dr. Eggenberger billed Medicare for 104 services in 2024, and Dr. Eggenberger accepts Medicare assignment.
How many Medicare patients does Dr. John C. Eggenberger see?
CMS counts 121 Medicare patients who saw Dr. Eggenberger in 2024, with an average age of 71.
Is Dr. John C. Eggenberger board certified?
Yes. Dr. Eggenberger is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery.
Show 8 more questionsShow fewer questions
What services does Dr. John C. Eggenberger bill to Medicare?
In 2024, Dr. Eggenberger's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99231) and surgery: digestive system (46600).
Where did Dr. John C. Eggenberger go to medical school?
Dr. Eggenberger graduated from University Of Michigan Medical School in 1985.
What drugs does Dr. John C. Eggenberger prescribe most?
In 2024 Medicare Part D data, Dr. Eggenberger's most prescribed drugs by claims were Sod Sulf-Potass Sulf-Mag Sulf, Oxycodone HCl and Lactated Ringers.
Has Dr. John C. Eggenberger received payments from drug or device companies?
CMS Open Payments shows $6,561 in general payments to Dr. Eggenberger from 3 companies from 2021 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. John C. Eggenberger been practicing?
Dr. Eggenberger graduated from medical school in 1985, 41 years ago.
Does Dr. John C. Eggenberger do research?
Dmand AI links 5 publications to Dr. Eggenberger.
Who does Dr. John C. Eggenberger publish with?
Dr. Eggenberger's most frequent co-authors are Robert K. Cleary, MD (2 shared papers), Darrell A. Campbell, MD (1 shared paper) and Ann Elizabeth Hutchison (1 shared paper).
What insurance does Dr. John C. Eggenberger accept?
Dr. Eggenberger is in network with 11 carriers, including Aetna, Health Alliance Plan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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