Dr. Zeljko M. Ivanovic, MD
- Medicare services, 2022
- 17
- Medicare patients, 2024
- 24
- Part D claims, 2024
- 147
- Industry payments
- $429
- Medical group
- 1
- Practice address
- 4102 S Timberline Rd, Fort Collins, CO 80525
- Practice phone
- Call (970) 494-4200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Summitstone Health Partners
Fort Collins, Colorado
Find Dr. Ivanovic'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. Zeljko M. Ivanovic is a psychiatrist in Fort Collins, Colorado
Dr. Ivanovic practices at Summitstone Health Partners in Fort Collins, Colorado.
Dr. Ivanovic's NPI, 1083669378, was assigned on May 24, 2006. Dr. Ivanovic holds Colorado license DR.0050477.
- NPI
- 1083669378NPI Registry (opens in a new tab)
- NPI enumeration date
- May 24, 2006
- NPI status
- Active
- Practice phone
- (970) 494-4200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Zeljko M. Ivanovic practices at Summitstone Health Partners in Fort Collins, Colorado
Dr. Ivanovic's primary practice is Summitstone Health Partners, at 4102 S Timberline Rd, Fort Collins, CO 80525 in Larimer County. The practice phone is (970) 494-4200.
- Summitstone Health Partners4102 S Timberline Rd, Fort Collins, CO 80525 · Larimer CountyPhone(970) 494-4200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Zeljko M. Ivanovic is affiliated with 1 site of care and 1 medical group
Dr. Ivanovic's primary practice is Summitstone Health Partners in Fort Collins, Colorado. The medical group on file is SummitStone Health Partners.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Zeljko M. Ivanovic's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ivanovic practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Summitstone Health Partners | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zeljko M. Ivanovic is one of 611 psychiatrists in Colorado
Psychiatry is Dr. Ivanovic's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Ivanovic is licensed in Colorado.
Specialties and state licenses
- Psychiatry, ColoradoPrimary
Psychiatrists near Dr. Ivanovic
Counts of psychiatrists 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. Zeljko M. Ivanovic billed Medicare for 17 services in 2022
CMS data shows 17 Medicare services from Dr. Ivanovic across 1 procedure code in 2022, for 24 Medicare patients. Medicare paid $2,714 for them. Every service was in an office.
Dr. Ivanovic's Medicare services by type, 2019 to 2022
- 2019
- 2022
- Tests and treatments
- 2019: 02022: 17
- Office and hospital visits
- 2019: 132022: 0100%
Dr. Ivanovic compared with the Colorado median for psychiatrists, 2022
- Dr. Ivanovic
- Colorado median
- Medicare services
- 17vs 10984% below
- Medicare patients
- 24vs 3837% below
- Part D claims
- 107vs 110Close to median
Medians across 691 psychiatrists in Colorado with Dmand AI profiles that report each measure.
Dr. Ivanovic's most billed Medicare procedure codes, 2022
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. Ivanovic and other psychiatrists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zeljko M. Ivanovic treated 24 Medicare patients in 2024, average age 64
CMS counts 24 Medicare patients who saw Dr. Ivanovic in 2024. 75% of them have mood disorders, and 71% have depression. 46% are also on Medicaid. Their average risk score is 1.90, 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. Ivanovic's median patient age at 44, with 50% women.
Chronic conditions among Dr. Ivanovic's Medicare patients, 2024
- Mood disorders75%
- Depression71%
- Anxiety67%
- High blood pressure63%
- Chronic kidney disease50%
- Arthritis46%
- Ischemic heart disease46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ivanovic's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women50%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zeljko M. Ivanovic wrote 147 Medicare Part D claims in 2024
In 2024, Dr. Ivanovic wrote 147 Medicare Part D claims for 12 patients. 90% of them were for generic drugs. CMS names the drug for 107 of them, across 7 drugs with 11 or more claims each, at $1,923 in total drug cost. In 2023, CMS named 93 claims across 5 drugs.
Dr. Ivanovic's Part D claims by kind of drug, 2024
- Generic133 claims90%
- Brand-name14 claims10%
Dr. Ivanovic'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. Ivanovic's Part D claims, 2024
- Antipsychotics, patients 65 and over27%40 of 147 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: 932024: 10715%
Drugs named by CMS: 7 in 2024, 5 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
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Dr. Zeljko M. Ivanovic received $429 in industry payments from 2016 to 2020
CMS Open Payments shows 9 general payments to Dr. Ivanovic from 5 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Neurocrine BioSciences, Inc. paid the most, $172.
General payments to Dr. Ivanovic by program year, 2016 to 2020
Companies that paid Dr. Ivanovic the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Zeljko M. Ivanovic'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Zeljko M. Ivanovic
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What is Dr. Zeljko M. Ivanovic's NPI number?
Dr. Zeljko M. Ivanovic's NPI number is 1083669378. It was assigned on May 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Zeljko M. Ivanovic?
Dr. Zeljko M. Ivanovic is a psychiatrist in Fort Collins, Colorado. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Zeljko M. Ivanovic practice?
Dr. Ivanovic practices at 4102 S Timberline Rd, Fort Collins, CO 80525. Dr. Ivanovic's primary practice is Summitstone Health Partners in Fort Collins, Colorado.
What is Dr. Zeljko M. Ivanovic's office phone number?
The practice phone on file for Dr. Ivanovic is (970) 494-4200.
What is Dr. Zeljko M. Ivanovic's medical license number?
Dr. Ivanovic holds Colorado license DR.0050477.
What medical group is Dr. Zeljko M. Ivanovic part of?
Dr. Ivanovic is linked to SummitStone Health Partners.
Does Dr. Zeljko M. Ivanovic accept Medicare?
Yes. CMS data shows Dr. Ivanovic billed Medicare for 17 services in 2022.
How many Medicare patients does Dr. Zeljko M. Ivanovic see?
CMS counts 24 Medicare patients who saw Dr. Ivanovic in 2024, with an average age of 64.
What services does Dr. Zeljko M. Ivanovic bill to Medicare?
In 2022, Dr. Ivanovic's most billed Medicare services were psychiatric service (90792).
What drugs does Dr. Zeljko M. Ivanovic prescribe most?
In 2024 Medicare Part D data, Dr. Ivanovic's most prescribed drugs by claims were Lamotrigine, Quetiapine Fumarate and Duloxetine HCl.
Has Dr. Zeljko M. Ivanovic received payments from drug or device companies?
CMS Open Payments shows $429 in general payments to Dr. Ivanovic from 5 companies from 2016 to 2020. The largest total came from Neurocrine BioSciences, Inc.
How long has Dr. Zeljko M. Ivanovic been practicing?
Dr. Ivanovic graduated from medical school in 1992, 34 years ago.
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