Dr. William Owen Hartness, MD
- Medicare services, 2020
- 526
- Part D claims, 2020
- 1,072
- Industry payments
- $179
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 222 22nd Ave N, Nashville, TN 37203
- Practice phone
- Call (615) 329-5144
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension Medical Group Saint Thomas - Nashville (222 22nd Ave N)
Primary care practice · Nashville, Tennessee
Find Dr. Hartness' 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. William Owen Hartness is a cardiologist in Nashville, Tennessee
Dr. Hartness practices at Ascension Medical Group Saint Thomas - Nashville (222 22nd Ave N) in Nashville, Tennessee.
Dr. Hartness' NPI, 1679576839, was assigned on May 23, 2005. Dr. Hartness holds Tennessee license 17016.
- NPI
- 1679576839NPI Registry (opens in a new tab)
- NPI enumeration date
- May 23, 2005
- NPI status
- Active
- Practice phone
- (615) 329-5144
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Owen Hartness practices at Ascension Medical Group Saint Thomas - Nashville (222 22nd Ave N) in Nashville, Tennessee
Dr. Hartness' primary practice is Ascension Medical Group Saint Thomas - Nashville (222 22nd Ave N), at 222 22nd Ave N, Nashville, TN 37203. The practice phone is (615) 329-5144.
- Ascension Medical Group Saint Thomas - Nashville (222 22nd Ave N)222 22nd Ave N, Nashville, TN 37203Phone(615) 329-5144
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Owen Hartness is affiliated with 1 site of care and 1 medical group
Dr. Hartness' primary practice is Ascension Medical Group Saint Thomas - Nashville (222 22nd Ave N) in Nashville, Tennessee. The medical group on file is Ascension Saint Thomas Medical Partners.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. William Owen Hartness' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hartness practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Medical Group Saint Thomas - Nashville (222 22nd Ave N) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Owen Hartness is one of 424 cardiologists in Tennessee
Cardiovascular disease is Dr. Hartness' primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Hartness is licensed in Tennessee.
Specialties and state licenses
- Cardiovascular disease, TennesseePrimary
Cardiologists near Dr. Hartness
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. William Owen Hartness billed Medicare for 526 services in 2020
CMS data shows 526 Medicare services from Dr. Hartness across 7 procedure codes in 2020. Medicare paid $21,224 for them.
Dr. Hartness' Medicare services by type, 2019 to 2020
- 2019
- 2020
- Tests and treatments
- 2019: 7692020: 27265%
- Office and hospital visits
- 2019: 6782020: 23965%
- Imaging
- 2019: 612020: 1575%
- Other services
- 2019: 142020: 0100%
Where Dr. Hartness' Medicare services took place, 2020
- In an office37471%
- In a facility15229%
Dr. Hartness compared with the Tennessee median for cardiologists, 2020
- Dr. Hartness
- Tennessee median
- Medicare services
- 526vs 1,79071% below
- Part D claims
- 1,072vs 1,79840% below
Medians across 428 cardiologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Hartness' most billed Medicare procedure codes, 2020
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. Hartness and other cardiologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Owen Hartness' patients have a median age of 77
Across all payers, Dmand AI patient panel data puts Dr. Hartness' median patient age at 77, with 18% women.
Dr. Hartness' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women18%
- Men82%
Source: Dmand AI Patient Panel Data
Dr. William Owen Hartness wrote 1,072 Medicare Part D claims in 2020
In 2020, Dr. Hartness wrote 1,072 Medicare Part D claims. They cover 23 drugs, with $131,398 in total drug cost. In 2019, CMS named 1,546 claims across 28 drugs.
Dr. Hartness' most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 1,5462020: 1,07231%
Drugs named by CMS: 23 in 2020, 28 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William Owen Hartness received $179 in industry payments from 2016 to 2019
CMS Open Payments shows 5 general payments to Dr. Hartness from 3 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $125.
General payments to Dr. Hartness by program year, 2016 to 2019
Companies that paid Dr. Hartness the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Owen Hartness'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. William Owen Hartness
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. William Owen Hartness' NPI number?
Dr. William Owen Hartness' NPI number is 1679576839. It was assigned on May 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William Owen Hartness?
Dr. William Owen Hartness is a cardiologist in Nashville, Tennessee. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. William Owen Hartness practice?
Dr. Hartness practices at 222 22nd Ave N, Nashville, TN 37203. Dr. Hartness' primary practice is Ascension Medical Group Saint Thomas - Nashville (222 22nd Ave N) in Nashville, Tennessee.
What is Dr. William Owen Hartness' office phone number?
The practice phone on file for Dr. Hartness is (615) 329-5144.
What is Dr. William Owen Hartness' medical license number?
Dr. Hartness holds Tennessee license 17016.
What medical group is Dr. William Owen Hartness part of?
Dr. Hartness is linked to Ascension Saint Thomas Medical Partners.
Does Dr. William Owen Hartness accept Medicare?
Yes. CMS data shows Dr. Hartness billed Medicare for 526 services in 2020.
What services does Dr. William Owen Hartness bill to Medicare?
In 2020, Dr. Hartness' most billed Medicare services were office visit, established patient (99214), heart test or procedure (93000) and heart test or procedure (93306).
What drugs does Dr. William Owen Hartness prescribe most?
In 2020 Medicare Part D data, Dr. Hartness' most prescribed drugs by claims were Metoprolol Tartrate, Eliquis and Clopidogrel.
Has Dr. William Owen Hartness received payments from drug or device companies?
CMS Open Payments shows $179 in general payments to Dr. Hartness from 3 companies from 2016 to 2019. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. William Owen Hartness been practicing?
Dr. Hartness' NPI was assigned in 2005.
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