Dr. Mark D. Gretsinger, MD
- Medicare services, 2016
- 370
- Part D claims, 2016
- 536
- Hospital affiliations
- 1
- Industry payments
- $299
- Medical group
- 1
- Practice address
- 7630 Southern Blvd, Youngstown, OH 44512
- Practice phone
- Call (330) 729-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gretsinger'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 D. Gretsinger is a gastroenterologist in Youngstown, Ohio
Dr. Gretsinger practices at The Surgical Hospital at Southwoods in Youngstown, Ohio, part of The Surgical Hospital at Southwoods.
Dr. Gretsinger's NPI, 1407843758, was assigned on October 3, 2005. Dr. Gretsinger holds Ohio license 35051729G.
- NPI
- 1407843758NPI Registry (opens in a new tab)
- NPI enumeration date
- October 3, 2005
- NPI status
- Active
- Practice phone
- (330) 729-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mark D. Gretsinger practices at The Surgical Hospital at Southwoods in Youngstown, Ohio
Dr. Gretsinger's primary practice is The Surgical Hospital at Southwoods, at 7630 Southern Blvd, Youngstown, OH 44512 in Mahoning County. The practice phone is (330) 729-8000.
- The Surgical Hospital at Southwoods7630 Southern Blvd, Youngstown, OH 44512 · Mahoning CountyPhone(330) 729-8000
Source: Dmand AI Affiliation Data
Dr. Mark D. Gretsinger is affiliated with 2 sites of care and 1 medical group
Dr. Gretsinger's primary practice is The Surgical Hospital at Southwoods in Youngstown, Ohio, part of The Surgical Hospital at Southwoods. Dmand AI also links Dr. Gretsinger to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark D. Gretsinger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gretsinger practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Surgical Hospital at Southwoods | Available with a free account |
| +1 more site and 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 The Surgical Hospital at Southwoods and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark D. Gretsinger is one of 692 gastroenterologists in Ohio
Gastroenterology is Dr. Gretsinger's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Gretsinger is licensed in Ohio.
Specialties and state licenses
- Gastroenterology, OhioPrimary
Gastroenterologists near Dr. Gretsinger
Counts of gastroenterologists 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 D. Gretsinger billed Medicare for 370 services in 2016
CMS data shows 370 Medicare services from Dr. Gretsinger across 13 procedure codes in 2016. Medicare paid $33,364 for them.
Dr. Gretsinger's Medicare services by type, 2016
- Office and hospital visits197
- Surgery161
- Other services12
Where Dr. Gretsinger's Medicare services took place, 2016
- In an office15742%
- In a facility21358%
Dr. Gretsinger compared with the Ohio median for gastroenterologists, 2016
- Dr. Gretsinger
- Ohio median
- Medicare services
- 370vs 4048% below
- Part D claims
- 536vs 40233% above
Medians across 687 gastroenterologists in Ohio with Dmand AI profiles that report each measure.
Dr. Gretsinger's most billed Medicare procedure codes, 2016
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. Gretsinger and other gastroenterologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark D. Gretsinger's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts Dr. Gretsinger's median patient age at 46, with 0% women.
Dr. Gretsinger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Mark D. Gretsinger wrote 536 Medicare Part D claims in 2016
In 2016, Dr. Gretsinger wrote 536 Medicare Part D claims. They cover 14 drugs, with $120,303 in total drug cost.
Dr. Gretsinger's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
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 D. Gretsinger received $299 in industry payments in 2016
CMS Open Payments shows 24 general payments to Dr. Gretsinger from 7 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $115.
Companies that paid Dr. Gretsinger the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark D. Gretsinger'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 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. Mark D. Gretsinger
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 D. Gretsinger's NPI number?
Dr. Mark D. Gretsinger's NPI number is 1407843758. It was assigned on October 3, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark D. Gretsinger?
Dr. Mark D. Gretsinger is a gastroenterologist in Youngstown, Ohio. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Mark D. Gretsinger practice?
Dr. Gretsinger practices at 7630 Southern Blvd, Youngstown, OH 44512. Dr. Gretsinger's primary practice is The Surgical Hospital at Southwoods in Youngstown, Ohio, part of The Surgical Hospital at Southwoods. Dmand AI also links Dr. Gretsinger to 1 group practice or clinic and 1 medical group.
What is Dr. Mark D. Gretsinger's office phone number?
The practice phone on file for Dr. Gretsinger is (330) 729-8000.
What is Dr. Mark D. Gretsinger's medical license number?
Dr. Gretsinger holds Ohio license 35051729G.
Which hospitals is Dr. Mark D. Gretsinger affiliated with?
Dr. Gretsinger practices at The Surgical Hospital at Southwoods in Youngstown, Ohio.
Does Dr. Mark D. Gretsinger accept Medicare?
Yes. CMS data shows Dr. Gretsinger billed Medicare for 370 services in 2016.
What services does Dr. Mark D. Gretsinger bill to Medicare?
In 2016, Dr. Gretsinger's most billed Medicare services were surgery: digestive system (43239), office visit, established patient (99214) and hospital inpatient care (99231).
What drugs does Dr. Mark D. Gretsinger prescribe most?
In 2016 Medicare Part D data, Dr. Gretsinger's most prescribed drugs by claims were Omeprazole, Gavilyte-N and Famotidine.
Has Dr. Mark D. Gretsinger received payments from drug or device companies?
CMS Open Payments shows $299 in general payments to Dr. Gretsinger from 7 companies from 2016 to 2016. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Mark D. Gretsinger been practicing?
Dr. Gretsinger's NPI was assigned in 2005.
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