$1,268 in research paymentsPancreatic NeoplasmsPancreatic DiseasesAbemaciclibCapecitabineGemcitabine
Dr. Mark S. Womack IV, MD
NPI1689887788PAC ID8729130208
- Medicare services, 2024
- 89,401
- Medicare patients, 2024
- 746
- Part D claims, 2024
- 2,136
- Clinical trials
- 2
- MIPS score, 2024
- 93
- Practice address
- 975 E 3rd St, Chattanooga, TN 37403
- Practice phone
- Call (423) 778-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Womack'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. Mark S. Womack IV is a hematologist and oncologist in Chattanooga, Tennessee
Dr. Womack practices at Erlanger Baroness Hospital in Chattanooga, Tennessee, part of Erlanger Health.
Dr. Womack's NPI, 1689887788, was assigned on May 7, 2007. Dr. Womack graduated from University of Tennessee, Hsc, College of Medicine in 2005. Dr. Womack holds Tennessee license MD0000047306.
NPI and contact details
- NPI
- 1689887788NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729130208
- NPI enumeration date
- May 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (423) 778-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark S. Womack IV practices at Erlanger Baroness Hospital in Chattanooga, Tennessee
Dr. Womack's primary practice is Erlanger Baroness Hospital, at 975 E 3rd St, Chattanooga, TN 37403 in Hamilton County. The practice phone is (423) 778-7000.
- Erlanger Baroness Hospital975 E 3rd St, Chattanooga, TN 37403 · Hamilton CountyPhone(423) 778-7000
Source: Dmand AI Affiliation Data
Dr. Mark S. Womack IV is affiliated with 7 sites of care and 2 medical groups
Dr. Womack's primary practice is Erlanger Baroness Hospital in Chattanooga, Tennessee, part of Erlanger Health. Dr. Womack is also affiliated with CommonSpirit - Memorial Hospital - Chattanooga. The medical group on file is Tennessee Oncology. Dmand AI also links Dr. Womack to 1 more hospital, 2 group practices and clinics, 1 community health center, 1 home health agency and 1 medical group, each named with a free account.
CommonSpirit - Memorial Hospital - ChattanoogaTennessee Oncology1 hospitalName with a free account2 group practices and clinicsNames with a free account1 community health centerName with a free account1 home health agencyName with a free account1 medical groupName with a free account
See all 9 affiliations for Dr. WomackSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark S. Womack IV's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Womack practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Erlanger Baroness Hospital | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Womack practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Erlanger Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark S. Womack IV is one of 271 hematologists and oncologists in Tennessee
Hematology and oncology is Dr. Womack's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Womack is licensed in Tennessee.
Specialties and state licenses
- Hematology and oncology, TennesseePrimary
Hematologists and oncologists near Dr. Womack
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
271hematologists and oncologists in Tennessee35hematologists and oncologists in Chattanooga7hematologists and oncologists at Erlanger Baroness Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark S. Womack IV billed Medicare for 89,401 services in 2024
CMS data shows 89,401 Medicare services from Dr. Womack across 72 procedure codes in 2024, for 746 Medicare patients. Medicare paid $1,253,091 for them.
Medicare services, 202489,401
Medicare patients746
Paid by Medicare$1.3M
Procedure codes72
Dr. Womack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 141,3172024: 75,95046%
- Lab and pathology
- 2023: 7,8592024: 6,97311%
- Tests and treatments
- 2023: 2,6052024: 2,5014%
- Surgery
- 2023: 1,8242024: 1,64210%
- Office and hospital visits
- 2023: 1,6732024: 1,48611%
- Other services
- 2023: 4032024: 849111%
Where Dr. Womack's Medicare services took place, 2024
- In an office89,219100%
- In a facility1820%
Dr. Womack compared with the Tennessee median for hematologists and oncologists, 2024
- Dr. Womack
- Tennessee median
- Medicare services
- 89,401vs 818109.3 times
- Medicare patients
- 746vs 2872.6 times
- Part D claims
- 1,797vs 5083.5 times
Medians across 259 hematologists and oncologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Womack'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.
Need commercial claims for Dr. Womack?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Womack and other hematologists and oncologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark S. Womack IV treated 746 Medicare patients in 2024, average age 75
CMS counts 746 Medicare patients who saw Dr. Womack in 2024. The largest group is 65 to 74, with 298 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 2.00, 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. Womack's median patient age at 66, with 58% women.
Medicare patients, 2024746
Average age75
Average risk score2.00
Also on Medicaid10%
Dr. Womack's Medicare patients by age, 2024
Dr. Womack's Medicare patients by sex, 2024
- Women39052%
- Men35648%
Chronic conditions among Dr. Womack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Cancer44%
- Ischemic heart disease42%
- Chronic kidney disease40%
- Diabetes34%
- Anxiety31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Womack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark S. Womack IV wrote 2,136 Medicare Part D claims in 2024
In 2024, Dr. Womack wrote 2,136 Medicare Part D claims for 371 patients. 70% of them were for generic drugs. CMS names the drug for 1,797 of them, across 48 drugs with 11 or more claims each, at $5,678,648 in total drug cost. In 2023, CMS named 1,727 claims across 46 drugs.
Part D claims, 20242,136
Drugs named by CMS48
Total drug cost$5.7M
Part D patients371
Dr. Womack's Part D claims by kind of drug, 2024
- Generic1,499 claims70%
- Brand-name and other637 claims30%
Dr. Womack'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. Womack's Part D claims, 2024
- Opioids9%186 of 2,136 claims
- Antibiotics3%62 of 2,136 claims
- Antipsychotics, patients 65 and over1%16 of 2,136 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: 1,7272024: 1,7974%
Drugs named by CMS: 48 in 2024, 46 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. Mark S. Womack IV scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Womack for performance year 2024, reported as part of a group. Dr. Womack accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Womack's MIPS scores, performance year 2024
- 93of 100Final score
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Find hematologists and oncologists like Dr. Womack by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Mark S. Womack IV has worked on 2 clinical trials
Dmand AI links Dr. Womack to 2 clinical trials. Conditions studied include Pancreatic Neoplasms and Pancreatic Diseases. Eli Lilly and Company sponsors the most, 2. Open Payments lists research payments to Dr. Womack that name 2 trials.
Conditions in Dr. Womack's trials
- Pancreatic Neoplasms
- Pancreatic Diseases
Investigators on the most trials with Dr. Womack
- Johanna Bendell, MD2 shared trials
- Asim M. Ali, MD1 shared trial
- Sukeshi Patel Arora, MD1 shared trial
Recent clinical trials with Dr. Womack
$24,612 in research paymentsPancreatic NeoplasmsPancreatic DiseasesGemcitabineNab-paclitaxelOlaratumab
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark S. Womack IV received $3,569 in industry payments from 2016 to 2025
CMS Open Payments shows 213 general payments to Dr. Womack from 37 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Amgen Inc. paid the most, $510. It also lists 7 research payments totaling $35,609 from 2016 to 2020, naming 2 clinical trials.
General payments to Dr. Womack by program year, 2016 to 2025
General payments to Dr. Womack by kind, 2016 to 2025
$3.6Kin total
- Food and beverage$3,26792%
- Education$3028%
Companies that paid Dr. Womack 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. Mark S. Womack IV graduated from University of Tennessee, Hsc, College of Medicine
Dr. Womack graduated from University of Tennessee, Hsc, College of Medicine in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark S. Womack IV'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Mark S. Womack IV
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. Mark S. Womack IV's NPI number?
Dr. Mark S. Womack IV's NPI number is 1689887788. It was assigned on May 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark S. Womack IV?
Dr. Mark S. Womack IV is a hematologist and oncologist in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Mark S. Womack IV practice?
Dr. Womack practices at 975 E 3rd St, Chattanooga, TN 37403. Dr. Womack's primary practice is Erlanger Baroness Hospital in Chattanooga, Tennessee, part of Erlanger Health. Dmand AI also links Dr. Womack to 1 hospital, 2 group practices and clinics, 1 community health center, 1 home health agency and 1 medical group.
What is Dr. Mark S. Womack IV's office phone number?
The practice phone on file for Dr. Womack is (423) 778-7000.
What is Dr. Mark S. Womack IV's medical license number?
Dr. Womack holds Tennessee license MD0000047306.
Which hospitals is Dr. Mark S. Womack IV affiliated with?
Dr. Womack practices at Erlanger Baroness Hospital in Chattanooga, Tennessee. Dr. Womack is also affiliated with CommonSpirit - Memorial Hospital - Chattanooga. Dmand AI links Dr. Womack to 1 more hospital.
What medical group is Dr. Mark S. Womack IV part of?
Dr. Womack is linked to Tennessee Oncology. Dmand AI links Dr. Womack to 1 more medical group.
Does Dr. Mark S. Womack IV accept Medicare?
Yes. CMS data shows Dr. Womack billed Medicare for 89,401 services in 2024, and Dr. Womack accepts Medicare assignment.
What is Dr. Mark S. Womack IV's MIPS score?
Dr. Womack's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mark S. Womack IV see?
CMS counts 746 Medicare patients who saw Dr. Womack in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Mark S. Womack IV bill to Medicare?
In 2024, Dr. Womack's most billed Medicare services were injected or infused drug (J9263), injected or infused drug (J0881) and injected or infused drug (J9144).
Where did Dr. Mark S. Womack IV go to medical school?
Dr. Womack graduated from University of Tennessee, Hsc, College of Medicine in 2005.
What drugs does Dr. Mark S. Womack IV prescribe most?
In 2024 Medicare Part D data, Dr. Womack's most prescribed drugs by claims were Prednisone, Abiraterone Acetate and Prochlorperazine Maleate.
Has Dr. Mark S. Womack IV received payments from drug or device companies?
CMS Open Payments shows $3,569 in general payments to Dr. Womack from 37 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Mark S. Womack IV been practicing?
Dr. Womack graduated from medical school in 2005, 21 years ago.
Does Dr. Mark S. Womack IV do research?
Dr. Womack has worked on 2 clinical trials.
Selling to hematology and oncology practices?
See hematologists and oncologists in Tennessee by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card