Dr. Timothy Matthew Iseri, MD
- Medicare services, 2024
- 165
- Medicare patients, 2024
- 139
- Part D claims, 2024
- 226
- Hospital affiliations
- 1
- Industry payments
- $5,029
- Practice address
- 400 Hobart St, Cadillac, MI 49601
- Practice phone
- Call (231) 876-7400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Timothy Matthew Iseri is a general surgeon in Cadillac, Michigan
Dr. Iseri practices at Munson Healthcare Cadillac Hospital in Cadillac, Michigan, part of Munson Healthcare.
Dr. Iseri's NPI, 1477554277, was assigned on August 3, 2005. Dr. Iseri graduated from Oregon Health Sciences University School of Medicine in 1995. Dr. Iseri holds Michigan license 4301065506.
- NPI
- 1477554277NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193729143
- NPI enumeration date
- August 3, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (231) 876-7400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy Matthew Iseri practices at Munson Healthcare Cadillac Hospital in Cadillac, Michigan
Dr. Iseri's primary practice is Munson Healthcare Cadillac Hospital, at 400 Hobart St, Cadillac, MI 49601 in Wexford County. The practice phone is (231) 876-7400.
- Munson Healthcare Cadillac Hospital400 Hobart St, Cadillac, MI 49601 · Wexford CountyPhone(231) 876-7400
Source: Dmand AI Affiliation Data
Dr. Timothy Matthew Iseri is affiliated with 2 sites of care and 2 medical groups
Dr. Iseri's primary practice is Munson Healthcare Cadillac Hospital in Cadillac, Michigan, part of Munson Healthcare. The medical group on file is Munson Healthcare Cadillac Hospital. Dmand AI also links Dr. Iseri to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Timothy Matthew Iseri's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Iseri practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Munson Healthcare Cadillac Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Timothy Matthew Iseri is one of 1,095 general surgeons in Michigan
Surgery is Dr. Iseri's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Iseri's licenses on file in 3 states: Michigan, Idaho and Oregon.
Specialties and state licenses
- Surgery, MichiganPrimary
- Idaho license
- Oregon license
General surgeons near Dr. Iseri
Counts of general 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. Timothy Matthew Iseri billed Medicare for 165 services in 2024
CMS data shows 165 Medicare services from Dr. Iseri across 5 procedure codes in 2024, for 139 Medicare patients. Medicare paid $21,344 for them.
Dr. Iseri's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2072024: 10052%
- Office and hospital visits
- 2023: 1752024: 6563%
- Other services
- 2023: 292024: 0100%
Where Dr. Iseri's Medicare services took place, 2024
- In an office7948%
- In a facility8652%
Dr. Iseri compared with the Michigan median for general surgeons, 2024
- Dr. Iseri
- Michigan median
- Medicare services
- 165vs 12631% above
- Medicare patients
- 139vs 10730% above
- Part D claims
- 185vs 306.2 times
Medians across 1,046 general surgeons in Michigan with Dmand AI profiles that report each measure.
Dr. Iseri'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Iseri and other general surgeons in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy Matthew Iseri treated 139 Medicare patients in 2024, average age 72
CMS counts 139 Medicare patients who saw Dr. Iseri in 2024. The largest group is 65 to 74, with 73 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Iseri's median patient age at 67, with 50% women.
Dr. Iseri's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Iseri's Medicare patients by sex, 2024
- Women5741%
- Men8259%
Chronic conditions among Dr. Iseri's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Ischemic heart disease36%
- Chronic kidney disease35%
- Mood disorders31%
- Depression28%
- COPD27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Iseri's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy Matthew Iseri wrote 226 Medicare Part D claims in 2024
In 2024, Dr. Iseri wrote 226 Medicare Part D claims for 95 patients. 90% of them were for generic drugs. CMS names the drug for 185 of them, across 3 drugs with 11 or more claims each, at $3,995 in total drug cost. In 2023, CMS named 190 claims across 3 drugs.
Dr. Iseri's Part D claims by kind of drug, 2024
- Generic203 claims90%
- Brand-name23 claims10%
Dr. Iseri'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. Iseri's Part D claims, 2024
- Opioids17%39 of 226 claims
- Antibiotics7%16 of 226 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: 1902024: 1853%
Drugs named by CMS: 3 in 2024, 3 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. Timothy Matthew Iseri ranks in the 64th percentile for colonoscopy in Medicare
Dr. Iseri accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 52 procedures of colonoscopy by Dr. Iseri, more than 64% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Iseri ranks in Medicare procedure volume
- Colonoscopy
- 64th percentile52 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 60th percentile42 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
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. Timothy Matthew Iseri received $5,029 in industry payments from 2016 to 2024
CMS Open Payments shows 31 general payments to Dr. Iseri from 14 drug and device companies from 2016 to 2024. Education make up the largest share, 80% of the total. Intuitive Surgical, Inc. paid the most, $4,589.
General payments to Dr. Iseri by program year, 2016 to 2024
General payments to Dr. Iseri by kind, 2016 to 2024
- Education$4,00080%
- Travel and lodging$52610%
- Food and beverage$50310%
Companies that paid Dr. Iseri the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Timothy Matthew Iseri graduated from Oregon Health Sciences University School of Medicine
Dr. Iseri graduated from Oregon Health Sciences University School of Medicine in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy Matthew Iseri'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. Timothy Matthew Iseri
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. Timothy Matthew Iseri's NPI number?
Dr. Timothy Matthew Iseri's NPI number is 1477554277. It was assigned on August 3, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy Matthew Iseri?
Dr. Timothy Matthew Iseri is a general surgeon in Cadillac, Michigan. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Timothy Matthew Iseri practice?
Dr. Iseri practices at 400 Hobart St, Cadillac, MI 49601. Dr. Iseri's primary practice is Munson Healthcare Cadillac Hospital in Cadillac, Michigan, part of Munson Healthcare. Dmand AI also links Dr. Iseri to 1 group practice or clinic and 1 medical group.
What is Dr. Timothy Matthew Iseri's office phone number?
The practice phone on file for Dr. Iseri is (231) 876-7400.
What is Dr. Timothy Matthew Iseri's medical license number?
Dr. Iseri holds Michigan license 4301065506, one of the licenses on file in 3 states.
Which states has Dr. Timothy Matthew Iseri been licensed in?
Dmand AI has state licenses on file for Dr. Iseri in Michigan, Idaho and Oregon.
Which hospitals is Dr. Timothy Matthew Iseri affiliated with?
Dr. Iseri practices at Munson Healthcare Cadillac Hospital in Cadillac, Michigan.
What medical group is Dr. Timothy Matthew Iseri part of?
Dr. Iseri is linked to Munson Healthcare Cadillac Hospital. Dmand AI links Dr. Iseri to 1 more medical group.
Does Dr. Timothy Matthew Iseri accept Medicare?
Yes. CMS data shows Dr. Iseri billed Medicare for 165 services in 2024, and Dr. Iseri accepts Medicare assignment.
How many Medicare patients does Dr. Timothy Matthew Iseri see?
CMS counts 139 Medicare patients who saw Dr. Iseri in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Dr. Timothy Matthew Iseri bill to Medicare?
In 2024, Dr. Iseri's most billed Medicare services were surgery: digestive system (45385), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Timothy Matthew Iseri go to medical school?
Dr. Iseri graduated from Oregon Health Sciences University School of Medicine in 1995.
What drugs does Dr. Timothy Matthew Iseri prescribe most?
In 2024 Medicare Part D data, Dr. Iseri's most prescribed drugs by claims were Omeprazole, Sucralfate and Hydrocodone-Acetaminophen.
Has Dr. Timothy Matthew Iseri received payments from drug or device companies?
CMS Open Payments shows $5,029 in general payments to Dr. Iseri from 14 companies from 2016 to 2024. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Timothy Matthew Iseri been practicing?
Dr. Iseri graduated from medical school in 1995, 31 years ago.
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