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Dr. Mark Sittig, MD
NPI1275951519PAC ID0446589584
- Medicare services, 2024
- 2,081
- Medicare patients, 2024
- 227
- Part D claims, 2024
- 136
- Publications
- 4
- MIPS score, 2024
- 93
- Practice address
- 509 E Bell St, Murfreesboro, TN 37130
- Practice phone
- Call (615) 329-0570
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tennessee Oncology
Murfreesboro, Tennessee
Find Dr. Sittig'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 Sittig is a radiation oncologist in Murfreesboro, Tennessee
Dr. Sittig practices at Tennessee Oncology in Murfreesboro, Tennessee.
Dr. Sittig's NPI, 1275951519, was assigned on April 3, 2014. Dr. Sittig graduated from Tulane University School of Medicine in 2014. Dr. Sittig holds Tennessee license 59257.
NPI and contact details
- NPI
- 1275951519NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446589584
- NPI enumeration date
- April 3, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (615) 329-0570
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Sittig practices at Tennessee Oncology in Murfreesboro, Tennessee
Dr. Sittig's primary practice is Tennessee Oncology, at 509 E Bell St, Murfreesboro, TN 37130 in Rutherford County. The practice phone is (615) 329-0570.
- Tennessee Oncology509 E Bell St, Murfreesboro, TN 37130 · Rutherford CountyPhone(615) 329-0570
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark Sittig is affiliated with 6 sites of care and 3 medical groups
Dr. Sittig's primary practice is Tennessee Oncology in Murfreesboro, Tennessee. Dr. Sittig is also affiliated with Vanderbilt University Medical Center. The medical group on file is Tennessee Oncology. Dmand AI also links Dr. Sittig to 1 more hospital, 3 group practices and clinics and 2 medical groups, each named with a free account.
Tennessee OncologyPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark Sittig's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sittig practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tennessee Oncology | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Sittig is one of 120 radiation oncologists in Tennessee
Radiation oncology is Dr. Sittig's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Sittig is licensed in Tennessee.
Specialties and state licenses
- Radiation oncology, TennesseePrimary
Radiation oncologists near Dr. Sittig
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
120radiation oncologists in Tennessee
4radiation oncologists in Murfreesboro
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Sittig billed Medicare for 2,081 services in 2024
CMS data shows 2,081 Medicare services from Dr. Sittig across 19 procedure codes in 2024, for 227 Medicare patients. Medicare paid $137,561 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20242,081
Medicare patients227
Paid by Medicare$137,561
Procedure codes19
Dr. Sittig's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,4662024: 1,65113%
- Office and hospital visits
- 2023: 1592024: 21837%
- Other services
- 2023: 1902024: 21212%
Dr. Sittig compared with the Tennessee median for radiation oncologists, 2024
- Dr. Sittig
- Tennessee median
- Medicare services
- 2,081vs 1,73820% above
- Medicare patients
- 227vs 2118% above
- Part D claims
- 90vs 5661% above
Medians across 113 radiation oncologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Sittig'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. Sittig and other radiation oncologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Sittig treated 227 Medicare patients in 2024, average age 75
CMS counts 227 Medicare patients who saw Dr. Sittig in 2024. The largest group is 65 to 74, with 105 patients. 75% of them have cancer, and 75% have high blood pressure. Their average risk score is 1.79, 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. Sittig's median patient age at 71, with 40% women.
Medicare patients, 2024227
Average age75
Average risk score1.79
Dr. Sittig's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sittig's Medicare patients by sex, 2024
- Women7734%
- Men15066%
Chronic conditions among Dr. Sittig's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Ischemic heart disease38%
- Diabetes33%
- Chronic kidney disease31%
- COPD30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sittig's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women40%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Sittig wrote 136 Medicare Part D claims in 2024
In 2024, Dr. Sittig wrote 136 Medicare Part D claims for 61 patients. 99% of them were for generic drugs. CMS names the drug for 90 of them, across 4 drugs with 11 or more claims each, at $1,301 in total drug cost. In 2023, CMS named 36 claims across 1 drug.
Part D claims, 2024136
Drugs named by CMS4
Total drug cost$1,301
Part D patients61
Dr. Sittig's Part D claims by kind of drug, 2024
- Generic134 claims99%
- Brand-name and other2 claims1%
Dr. Sittig'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 362024: 90150%
Drugs named by CMS: 4 in 2024, 1 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 Sittig 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. Sittig for performance year 2024, reported as part of a group. Dr. Sittig accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sittig as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Sittig'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
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Dr. Mark Sittig has 4 publications on record
Dmand AI links 4 papers to Dr. Sittig, published from 2015 to 2019. Dr. Sittig's most frequent co-authors are Allen Szu-Hao Ho, MD, Diana Lu, MD and Kevin Scott Scher, MBA, MD.
Papers4
Years published2015 to 2019
Dr. Sittig's papers by year, 2015 to 2019
Dr. Sittig's most frequent co-authors
- Allen Szu-Hao Ho, MD2 shared papers
- Diana Lu, MD2 shared papers
- Kevin Scott Scher, MBA, MD2 shared papers
Recent publications by Dr. Sittig
J La State Med Soc
CarcinomaCarcinoma, PapillaryColonoscopy
See who Dr. Sittig researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sittig works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Sittig received $2,513 in industry payments from 2018 to 2025
CMS Open Payments shows 26 general payments to Dr. Sittig from 17 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $566.
General payments to Dr. Sittig by program year, 2018 to 2025
Companies that paid Dr. Sittig the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Sittig graduated from Tulane University School of Medicine
Dr. Sittig graduated from Tulane University School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Sittig'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) |
| 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) |
| Publications, topics and co-authors | PubMed (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 Sittig
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 Sittig's NPI number?
Dr. Mark Sittig's NPI number is 1275951519. It was assigned on April 3, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Sittig?
Dr. Mark Sittig is a radiation oncologist in Murfreesboro, Tennessee. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Mark Sittig practice?
Dr. Sittig practices at 509 E Bell St, Murfreesboro, TN 37130. Dr. Sittig's primary practice is Tennessee Oncology in Murfreesboro, Tennessee. Dmand AI also links Dr. Sittig to 1 hospital, 3 group practices and clinics and 2 medical groups.
What is Dr. Mark Sittig's office phone number?
The practice phone on file for Dr. Sittig is (615) 329-0570.
What is Dr. Mark Sittig's medical license number?
Dr. Sittig holds Tennessee license 59257.
Which hospitals is Dr. Mark Sittig affiliated with?
Dr. Sittig is affiliated with Vanderbilt University Medical Center. Dmand AI links Dr. Sittig to 1 more hospital.
What medical group is Dr. Mark Sittig part of?
Dr. Sittig is linked to Tennessee Oncology. Dmand AI links Dr. Sittig to 2 more medical groups.
Does Dr. Mark Sittig accept Medicare?
Yes. CMS data shows Dr. Sittig billed Medicare for 2,081 services in 2024, and Dr. Sittig accepts Medicare assignment.
Does Dr. Mark Sittig offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Sittig as offering telehealth services.
What is Dr. Mark Sittig's MIPS score?
Dr. Sittig's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Mark Sittig see?
CMS counts 227 Medicare patients who saw Dr. Sittig in 2024, with an average age of 75.
What services does Dr. Mark Sittig bill to Medicare?
In 2024, Dr. Sittig's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and radiation oncology (77427).
Where did Dr. Mark Sittig go to medical school?
Dr. Sittig graduated from Tulane University School of Medicine in 2014.
What drugs does Dr. Mark Sittig prescribe most?
In 2024 Medicare Part D data, Dr. Sittig's most prescribed drugs by claims were Tamsulosin HCl, Oxybutynin Chloride ER and Gabapentin.
Has Dr. Mark Sittig received payments from drug or device companies?
CMS Open Payments shows $2,513 in general payments to Dr. Sittig from 17 companies from 2018 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Mark Sittig been practicing?
Dr. Sittig graduated from medical school in 2014, 12 years ago.
Does Dr. Mark Sittig do research?
Dmand AI links 4 publications to Dr. Sittig, published from 2015 to 2019.
Who does Dr. Mark Sittig publish with?
Dr. Sittig's most frequent co-authors are Allen Szu-Hao Ho, MD (2 shared papers), Diana Lu, MD (2 shared papers) and Kevin Scott Scher, MBA, MD (2 shared papers).
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