Dr. Mark A. Stonehill, MD
- Medicare services, 2024
- 70
- Medicare patients, 2024
- 194
- Hospital affiliations
- 1
- Industry payments
- $798
- Medical groups
- 2
- Practice address
- 401 Matthew Street, Marietta, OH 45750
- Practice phone
- Call (740) 374-1400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stonehill's professional email, personal email and mobile number
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Dr. Mark A. Stonehill is an anesthesiologist in Marietta, Ohio
Dr. Stonehill practices at Marietta Memorial Hospital in Marietta, Ohio, part of Memorial Health System.
Dr. Stonehill's NPI, 1740267335, was assigned on December 27, 2005. Dr. Stonehill graduated from Indiana University School of Medicine in 2001. Dr. Stonehill holds Ohio license 35099209.
- NPI
- 1740267335NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456385954
- NPI enumeration date
- December 27, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (740) 374-1400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark A. Stonehill practices at Marietta Memorial Hospital in Marietta, Ohio
Dr. Stonehill's primary practice is Marietta Memorial Hospital, at 401 Matthew Street, Marietta, OH 45750 in Washington County. The practice phone is (740) 374-1400.
- Marietta Memorial Hospital401 Matthew Street, Marietta, OH 45750 · Washington CountyPhone(740) 374-1400
Source: Dmand AI Affiliation Data
Dr. Mark A. Stonehill is affiliated with 1 site of care and 2 medical groups
Dr. Stonehill's primary practice is Marietta Memorial Hospital in Marietta, Ohio, part of Memorial Health System. The medical group on file is Marietta Memorial Hospital. Dmand AI also links Dr. Stonehill to 1 more medical group, named with a free account. Dr. Stonehill's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark A. Stonehill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stonehill practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marietta Memorial Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Memorial Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark A. Stonehill is one of 1,673 anesthesiologists in Ohio
Anesthesiology is Dr. Stonehill's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Stonehill's licenses on file in 2 states: Ohio and Indiana.
Specialties and state licenses
- Anesthesiology, OhioPrimary
- Indiana license
Anesthesiologists near Dr. Stonehill
Counts of anesthesiologists 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. Mark A. Stonehill billed Medicare for 70 services in 2024
CMS data shows 70 Medicare services from Dr. Stonehill across 3 procedure codes in 2024, for 194 Medicare patients. Medicare paid $3,929 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stonehill's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 3362024: 7079%
Dr. Stonehill compared with the Ohio median for anesthesiologists, 2024
- Dr. Stonehill
- Ohio median
- Medicare services
- 70vs 7810% below
- Medicare patients
- 194vs 14534% above
Medians across 1,609 anesthesiologists in Ohio with Dmand AI profiles that report each measure.
Dr. Stonehill'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. Stonehill?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stonehill and other anesthesiologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark A. Stonehill treated 194 Medicare patients in 2024, average age 72
CMS counts 194 Medicare patients who saw Dr. Stonehill in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.08, 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. Stonehill's median patient age at 31, with 94% women.
Dr. Stonehill's Medicare patients by age, 2024
Dr. Stonehill's Medicare patients by sex, 2024
- Women9851%
- Men9649%
Chronic conditions among Dr. Stonehill's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis69%
- Diabetes47%
- Anxiety44%
- Mood disorders42%
- Ischemic heart disease41%
- Depression40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stonehill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women94%
- Men6%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Mark A. Stonehill takes part in Medicare
Dr. Stonehill 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. Mark A. Stonehill received $798 in industry payments from 2016 to 2025
CMS Open Payments shows 37 general payments to Dr. Stonehill from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $319.
General payments to Dr. Stonehill by program year, 2016 to 2025
Companies that paid Dr. Stonehill 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 A. Stonehill graduated from Indiana University School of Medicine
Dr. Stonehill graduated from Indiana University School of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark A. Stonehill'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. Mark A. Stonehill
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 A. Stonehill's NPI number?
Dr. Mark A. Stonehill's NPI number is 1740267335. It was assigned on December 27, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Stonehill?
Dr. Mark A. Stonehill is an anesthesiologist in Marietta, Ohio. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Mark A. Stonehill practice?
Dr. Stonehill practices at 401 Matthew Street, Marietta, OH 45750. Dr. Stonehill's primary practice is Marietta Memorial Hospital in Marietta, Ohio, part of Memorial Health System. Dmand AI also links Dr. Stonehill to 1 medical group.
What is Dr. Mark A. Stonehill's office phone number?
The practice phone on file for Dr. Stonehill is (740) 374-1400.
What is Dr. Mark A. Stonehill's medical license number?
Dr. Stonehill holds Ohio license 35099209, one of the licenses on file in 2 states.
Which states has Dr. Mark A. Stonehill been licensed in?
Dmand AI has state licenses on file for Dr. Stonehill in Ohio and Indiana.
Which hospitals is Dr. Mark A. Stonehill affiliated with?
Dr. Stonehill practices at Marietta Memorial Hospital in Marietta, Ohio.
What medical group is Dr. Mark A. Stonehill part of?
Dr. Stonehill is linked to Marietta Memorial Hospital. Dmand AI links Dr. Stonehill to 1 more medical group.
Does Dr. Mark A. Stonehill accept Medicare?
Yes. CMS data shows Dr. Stonehill billed Medicare for 70 services in 2024, and Dr. Stonehill accepts Medicare assignment.
How many Medicare patients does Dr. Mark A. Stonehill see?
CMS counts 194 Medicare patients who saw Dr. Stonehill in 2024, with an average age of 72.
Show 4 more questionsShow fewer questions
What services does Dr. Mark A. Stonehill bill to Medicare?
In 2024, Dr. Stonehill's most billed Medicare services were anesthesia (00813), anesthesia (00811) and anesthesia (00731).
Where did Dr. Mark A. Stonehill go to medical school?
Dr. Stonehill graduated from Indiana University School of Medicine in 2001.
Has Dr. Mark A. Stonehill received payments from drug or device companies?
CMS Open Payments shows $798 in general payments to Dr. Stonehill from 9 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Mark A. Stonehill been practicing?
Dr. Stonehill graduated from medical school in 2001, 25 years ago.
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