Mark Gregory Barton, PA
- Medicare patients, 2024
- 106
- Part D claims, 2024
- 3,279
- Hospital affiliations
- 1
- Industry payments
- $39
- Medical group
- 1
- Practice address
- 1739 Cleveland Road, Wooster, OH 44691
- Practice phone
- Call (330) 262-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Viola Startzman Clinic
Rural Health Clinic - Independent · Wooster, Ohio
Find Mark Barton'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.
Mark Gregory Barton is a physician assistant in Wooster, Ohio
Mark Barton practices at Viola Startzman Clinic in Wooster, Ohio.
Mark Barton's NPI, 1811953417, was assigned on April 22, 2006. Mark Barton holds Ohio license 50.000607.
- NPI
- 1811953417NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567376171
- NPI enumeration date
- April 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (330) 262-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Gregory Barton practices at Viola Startzman Clinic in Wooster, Ohio
Mark Barton's primary practice is Viola Startzman Clinic, at 1739 Cleveland Road, Wooster, OH 44691. The practice phone is (330) 262-2500.
- Viola Startzman Clinic1739 Cleveland Road, Wooster, OH 44691Phone(330) 262-2500
Source: Dmand AI Affiliation Data
Mark Gregory Barton is affiliated with 2 sites of care and 1 medical group
Mark Barton's primary practice is Viola Startzman Clinic in Wooster, Ohio. Mark Barton is also affiliated with Wooster Community Hospital. Dmand AI also links Mark Barton to 1 more medical group, named with a free account. Mark Barton's employer is on file too: a rural health clinic (rhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mark Gregory Barton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Barton practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Viola Startzman Clinic | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark Gregory Barton is one of 4,524 physician assistants in Ohio
Physician assistant is Mark Barton's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Mark Barton is licensed in Ohio.
Specialties and state licenses
- Physician assistant, OhioPrimary
Physician assistants near Mark Barton
Counts of physician assistants 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
Mark Gregory Barton treated 106 Medicare patients in 2024, average age 74
CMS counts 106 Medicare patients who saw Mark Barton in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.18, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mark Barton's median patient age at 53, with 54% women.
Mark Barton's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mark Barton's Medicare patients by sex, 2024
- Women4744%
- Men5956%
Chronic conditions among Mark Barton's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease36%
- Anxiety34%
- Diabetes31%
- Mood disorders30%
- COPD25%
Share of Medicare patients with each condition. A patient can have several.
Mark Barton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark Gregory Barton wrote 3,279 Medicare Part D claims in 2024
In 2024, Mark Barton wrote 3,279 Medicare Part D claims for 380 patients. 88% of them were for generic drugs.
Mark Barton's Part D claims by kind of drug, 2024
- Generic2,892 claims88%
- Brand-name366 claims11%
- Other21 claims1%
Drug classes CMS tracks in Mark Barton's Part D claims, 2024
- Opioids1%41 of 3,279 claims
- Antibiotics1%17 of 3,279 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Mark Gregory Barton takes part in Medicare
Mark Barton 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)
For MedTech and pharma teams
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Mark Gregory Barton received $39 in industry payments in 2025
CMS Open Payments shows 2 general payments to Mark Barton from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Xeris Pharmaceuticals, Inc. paid the most, $21.
Companies that paid Mark Barton the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Mark Gregory Barton'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 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 (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) |
| 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 Mark Gregory Barton
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Gregory Barton's NPI number?
Mark Gregory Barton's NPI number is 1811953417. It was assigned on April 22, 2006, and it is active in the NPI Registry.
What does Mark Gregory Barton specialize in?
Mark Gregory Barton is a physician assistant in Wooster, Ohio. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Mark Gregory Barton practice?
Mark Barton practices at 1739 Cleveland Road, Wooster, OH 44691. Mark Barton's primary practice is Viola Startzman Clinic in Wooster, Ohio. Dmand AI also links Mark Barton to 1 medical group.
What is Mark Gregory Barton's office phone number?
The practice phone on file for Mark Barton is (330) 262-2500.
What is Mark Gregory Barton's medical license number?
Mark Barton holds Ohio license 50.000607.
Which hospitals is Mark Gregory Barton affiliated with?
Mark Barton is affiliated with Wooster Community Hospital.
Does Mark Gregory Barton accept Medicare?
Yes. CMS lists Mark Barton as accepting Medicare assignment.
How many Medicare patients does Mark Gregory Barton see?
CMS counts 106 Medicare patients who saw Mark Barton in 2024, with an average age of 74.
Has Mark Gregory Barton received payments from drug or device companies?
CMS Open Payments shows $39 in general payments to Mark Barton from 2 companies from 2025 to 2025. The largest total came from Xeris Pharmaceuticals, Inc.
How long has Mark Gregory Barton been practicing?
Mark Barton graduated from medical school in 1991, 35 years ago.
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