Dr. Nizar Ottoman, MD
- Medicare services, 2024
- 611
- Medicare patients, 2024
- 241
- Part D claims, 2024
- 334
- Hospital affiliations
- 5
- Industry payments
- $458
- Practice address
- 1221 Whipple St, Eau Claire, WI 54703
- Practice phone
- Call (715) 838-3311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ottoman'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. Nizar Ottoman is a hospitalist in Eau Claire, Wisconsin
Dr. Ottoman practices at Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin, part of Mayo Clinic.
Dr. Ottoman's NPI, 1366546475, was assigned on September 11, 2006. Dr. Ottoman holds Wisconsin license 47172.
- NPI
- 1366546475NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2769451293
- NPI enumeration date
- September 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (715) 838-3311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nizar Ottoman practices at Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin
Dr. Ottoman's primary practice is Mayo Clinic Health System in Eau Claire, at 1221 Whipple St, Eau Claire, WI 54703 in Eau Claire County. The practice phone is (715) 838-3311.
- Mayo Clinic Health System in Eau Claire1221 Whipple St, Eau Claire, WI 54703 · Eau Claire CountyPhone(715) 838-3311
Source: Dmand AI Affiliation Data
Dr. Nizar Ottoman is affiliated with 7 sites of care and 4 medical groups
Dr. Ottoman's primary practice is Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin, part of Mayo Clinic. Dr. Ottoman is also affiliated with Mayo Clinic Health System in Menomonie. The medical group on file is Marshfield Clinic Health System. Dmand AI also links Dr. Ottoman to 3 more hospitals, 3 medical groups, 1 group practice or clinic and 1 hospice, 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. Nizar Ottoman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ottoman practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Health System in Eau Claire | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nizar Ottoman is one of 773 hospitalists in Wisconsin
Hospitalist is Dr. Ottoman's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Ottoman is licensed in Wisconsin.
Specialties and state licenses
- Hospitalist, WisconsinPrimary
Hospitalists near Dr. Ottoman
Counts of hospitalists 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. Nizar Ottoman billed Medicare for 611 services in 2024
CMS data shows 611 Medicare services from Dr. Ottoman across 7 procedure codes in 2024, for 241 Medicare patients. Medicare paid $48,279 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ottoman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5772024: 6116%
Dr. Ottoman compared with the Wisconsin median for hospitalists, 2024
- Dr. Ottoman
- Wisconsin median
- Medicare services
- 611vs 35771% above
- Medicare patients
- 241vs 16546% above
- Part D claims
- 110vs 7841% above
Medians across 743 hospitalists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Ottoman'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nizar Ottoman treated 241 Medicare patients in 2024, average age 76
CMS counts 241 Medicare patients who saw Dr. Ottoman in 2024. The largest group is 75 to 84, with 79 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 2.52, 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. Ottoman's median patient age at 76, with 50% women.
Dr. Ottoman's Medicare patients by age, 2024
Dr. Ottoman's Medicare patients by sex, 2024
- Women11146%
- Men13054%
Chronic conditions among Dr. Ottoman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease57%
- Heart failure53%
- Anxiety48%
- Atrial fibrillation47%
- Diabetes47%
- Mood disorders47%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ottoman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
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. Nizar Ottoman wrote 334 Medicare Part D claims in 2024
In 2024, Dr. Ottoman wrote 334 Medicare Part D claims for 84 patients. 90% of them were for generic drugs. CMS names the drug for 110 of them, across 8 drugs with 11 or more claims each, at $9,553 in total drug cost. In 2023, CMS named 255 claims across 16 drugs.
Dr. Ottoman's Part D claims by kind of drug, 2024
- Generic302 claims90%
- Brand-name and other32 claims10%
Dr. Ottoman'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. Ottoman's Part D claims, 2024
- Opioids4%12 of 334 claims
- Antibiotics6%21 of 334 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: 2552024: 11057%
Drugs named by CMS: 8 in 2024, 16 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
How Dr. Nizar Ottoman takes part in Medicare
Dr. Ottoman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nizar Ottoman received $458 in industry payments from 2020 to 2022
CMS Open Payments shows 31 general payments to Dr. Ottoman from 13 drug and device companies from 2020 to 2022. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $72.
General payments to Dr. Ottoman by program year, 2020 to 2022
Companies that paid Dr. Ottoman the most, 2020 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nizar Ottoman'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) |
| 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. Nizar Ottoman
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. Nizar Ottoman's NPI number?
Dr. Nizar Ottoman's NPI number is 1366546475. It was assigned on September 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nizar Ottoman?
Dr. Nizar Ottoman is a hospitalist in Eau Claire, Wisconsin. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Nizar Ottoman practice?
Dr. Ottoman practices at 1221 Whipple St, Eau Claire, WI 54703. Dr. Ottoman's primary practice is Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin, part of Mayo Clinic. Dmand AI also links Dr. Ottoman to 3 hospitals, 3 medical groups, 1 group practice or clinic and 1 hospice.
What is Dr. Nizar Ottoman's office phone number?
The practice phone on file for Dr. Ottoman is (715) 838-3311.
What is Dr. Nizar Ottoman's medical license number?
Dr. Ottoman holds Wisconsin license 47172.
Which hospitals is Dr. Nizar Ottoman affiliated with?
Dr. Ottoman practices at Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin. Dr. Ottoman is also affiliated with Mayo Clinic Health System in Menomonie. Dmand AI links Dr. Ottoman to 3 more hospitals.
What medical group is Dr. Nizar Ottoman part of?
Dr. Ottoman is linked to Marshfield Clinic Health System. Dmand AI links Dr. Ottoman to 3 more medical groups.
Does Dr. Nizar Ottoman accept Medicare?
Yes. CMS data shows Dr. Ottoman billed Medicare for 611 services in 2024, and Dr. Ottoman accepts Medicare assignment.
How many Medicare patients does Dr. Nizar Ottoman see?
CMS counts 241 Medicare patients who saw Dr. Ottoman in 2024, with an average age of 76.
What services does Dr. Nizar Ottoman bill to Medicare?
In 2024, Dr. Ottoman's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
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What drugs does Dr. Nizar Ottoman prescribe most?
In 2024 Medicare Part D data, Dr. Ottoman's most prescribed drugs by claims were Metoprolol Tartrate, Furosemide and Atorvastatin Calcium.
Has Dr. Nizar Ottoman received payments from drug or device companies?
CMS Open Payments shows $458 in general payments to Dr. Ottoman from 13 companies from 2020 to 2022. The largest total came from Abbvie Inc.
How long has Dr. Nizar Ottoman been practicing?
Dr. Ottoman graduated from medical school in 1996, 30 years ago.
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