Dr. James J. Nemec, MD
- Medicare services, 2024
- 946
- Medicare patients, 2024
- 359
- Hospital affiliations
- 3
- Industry payments
- $548
- Medical group
- 1
- Practice address
- 1120 South Utica Avenue, Tulsa, OK 74104
- Practice phone
- Call (918) 579-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nemec'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. James J. Nemec is a cardiologist in Tulsa, Oklahoma
Dr. Nemec practices at Hillcrest Medical Center in Tulsa, Oklahoma, part of Ardent Health.
Dr. Nemec's NPI, 1457321341, was assigned on January 24, 2006. Dr. Nemec graduated from Creighton University School of Medicine in 1984. Dr. Nemec holds Oklahoma license 18855.
- NPI
- 1457321341NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870666449
- NPI enumeration date
- January 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (918) 579-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James J. Nemec practices at Hillcrest Medical Center in Tulsa, Oklahoma
Dr. Nemec's primary practice is Hillcrest Medical Center, at 1120 South Utica Avenue, Tulsa, OK 74104 in Tulsa County. The practice phone is (918) 579-1000.
- Hillcrest Medical Center1120 South Utica Avenue, Tulsa, OK 74104 · Tulsa CountyPhone(918) 579-1000
Source: Dmand AI Affiliation Data
Dr. James J. Nemec is affiliated with 4 sites of care and 1 medical group
Dr. Nemec's primary practice is Hillcrest Medical Center in Tulsa, Oklahoma, part of Ardent Health. Dr. Nemec is also affiliated with Hillcrest Hospital South. The medical group on file is Oklahoma Heart Institute. Dmand AI also links Dr. Nemec to 1 more hospital and 1 group practice or clinic, 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. James J. Nemec's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nemec practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hillcrest Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James J. Nemec is one of 186 cardiologists in Oklahoma
Cardiovascular disease is Dr. Nemec's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Nemec is licensed in Oklahoma.
Specialties and state licenses
- Cardiovascular disease, OklahomaPrimary
Cardiologists near Dr. Nemec
Counts of cardiologists 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. James J. Nemec billed Medicare for 946 services in 2024
CMS data shows 946 Medicare services from Dr. Nemec across 4 procedure codes in 2024, for 359 Medicare patients. Medicare paid $23,933 for them.
Dr. Nemec's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 8202024: 60027%
- Imaging
- 2023: 4792024: 34628%
Where Dr. Nemec's Medicare services took place, 2024
- In an office65769%
- In a facility28931%
Dr. Nemec compared with the Oklahoma median for cardiologists, 2024
- Dr. Nemec
- Oklahoma median
- Medicare services
- 946vs 2,25158% below
- Medicare patients
- 359vs 1,06466% below
Medians across 176 cardiologists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Nemec'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. Nemec and other cardiologists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James J. Nemec treated 359 Medicare patients in 2024, average age 74
CMS counts 359 Medicare patients who saw Dr. Nemec in 2024. The largest group is 75 to 84, with 165 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.71, 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. Nemec's median patient age at 72, with 42% women.
Dr. Nemec's Medicare patients by age, 2024
Dr. Nemec's Medicare patients by sex, 2024
- Women17348%
- Men18652%
Chronic conditions among Dr. Nemec's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease72%
- Arthritis53%
- Heart failure42%
- Chronic kidney disease41%
- Diabetes41%
- Atrial fibrillation36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nemec's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. James J. Nemec takes part in Medicare
Dr. Nemec 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. James J. Nemec received $548 in industry payments from 2016 to 2025
CMS Open Payments shows 25 general payments to Dr. Nemec from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abiomed paid the most, $228.
General payments to Dr. Nemec by program year, 2016 to 2025
Companies that paid Dr. Nemec 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. James J. Nemec graduated from Creighton University School of Medicine
Dr. Nemec graduated from Creighton University School of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James J. Nemec'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) |
| 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) |
| 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. James J. Nemec
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. James J. Nemec's NPI number?
Dr. James J. Nemec's NPI number is 1457321341. It was assigned on January 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James J. Nemec?
Dr. James J. Nemec is a cardiologist in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. James J. Nemec practice?
Dr. Nemec practices at 1120 South Utica Avenue, Tulsa, OK 74104. Dr. Nemec's primary practice is Hillcrest Medical Center in Tulsa, Oklahoma, part of Ardent Health. Dmand AI also links Dr. Nemec to 1 hospital and 1 group practice or clinic.
What is Dr. James J. Nemec's office phone number?
The practice phone on file for Dr. Nemec is (918) 579-1000.
What is Dr. James J. Nemec's medical license number?
Dr. Nemec holds Oklahoma license 18855.
Which hospitals is Dr. James J. Nemec affiliated with?
Dr. Nemec practices at Hillcrest Medical Center in Tulsa, Oklahoma. Dr. Nemec is also affiliated with Hillcrest Hospital South. Dmand AI links Dr. Nemec to 1 more hospital.
What medical group is Dr. James J. Nemec part of?
Dr. Nemec is linked to Oklahoma Heart Institute.
Does Dr. James J. Nemec accept Medicare?
Yes. CMS data shows Dr. Nemec billed Medicare for 946 services in 2024, and Dr. Nemec accepts Medicare assignment.
How many Medicare patients does Dr. James J. Nemec see?
CMS counts 359 Medicare patients who saw Dr. Nemec in 2024, with an average age of 74.
What services does Dr. James J. Nemec bill to Medicare?
In 2024, Dr. Nemec's most billed Medicare services were nuclear medicine (78452), heart test or procedure (93018) and heart test or procedure (93016).
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Where did Dr. James J. Nemec go to medical school?
Dr. Nemec graduated from Creighton University School of Medicine in 1984.
Has Dr. James J. Nemec received payments from drug or device companies?
CMS Open Payments shows $548 in general payments to Dr. Nemec from 8 companies from 2016 to 2025. The largest total came from Abiomed.
How long has Dr. James J. Nemec been practicing?
Dr. Nemec graduated from medical school in 1984, 42 years ago.
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