Dr. Mark Jacob Greenhill, DO
- Hospital affiliations
- 5
- Industry payments
- $518
- Medical groups
- 4
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 9500 Euclid Avenue, Cleveland, OH 44195
- Practice phone
- Call (216) 952-9829
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Greenhill'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 Jacob Greenhill is a diagnostic radiologist in Cleveland, Ohio
Dr. Greenhill practices at Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation.
Dr. Greenhill's NPI, 1275096760, was assigned on April 11, 2019. Dr. Greenhill graduated from Arizona College of Osteopathic Medicine Mid Western University in 2019. Dr. Greenhill holds Arizona license 8675.
- NPI
- 1275096760NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991128712
- NPI enumeration date
- April 11, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (216) 952-9829
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Jacob Greenhill practices at Cleveland Clinic Main Campus in Cleveland, Ohio
Dr. Greenhill's primary practice is Cleveland Clinic Main Campus, at 9500 Euclid Avenue, Cleveland, OH 44195 in Cuyahoga County. The practice phone is (216) 952-9829.
- Cleveland Clinic Main Campus9500 Euclid Avenue, Cleveland, OH 44195 · Cuyahoga CountyPhone(216) 952-9829
Source: Dmand AI Affiliation Data
Dr. Mark Jacob Greenhill is affiliated with 7 sites of care and 4 medical groups
Dr. Greenhill's primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. Dr. Greenhill is also affiliated with Medina Hospital. The medical group on file is Cleveland Clinic. Dmand AI also links Dr. Greenhill to 3 more hospitals, 3 medical groups and 2 clinical labs, each named with a free account. Dr. Greenhill'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 Jacob Greenhill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenhill practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cleveland Clinic Main Campus | Available with a free account |
| +6 more sites and 3 medical groups | 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 Cleveland Clinic Foundation and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Jacob Greenhill is one of 1,478 diagnostic radiologists in Ohio
Diagnostic radiology is Dr. Greenhill's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Greenhill is licensed in Arizona.
Specialties and state licenses
- Diagnostic radiology, ArizonaPrimary
Diagnostic radiologists near Dr. Greenhill
Counts of diagnostic radiologists 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 Jacob Greenhill's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Greenhill's median patient age at 61, with 57% women.
Dr. Greenhill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
How Dr. Mark Jacob Greenhill takes part in Medicare
Dr. Greenhill 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)
Dr. Mark Jacob Greenhill received $518 in industry payments from 2022 to 2023
CMS Open Payments shows 10 general payments to Dr. Greenhill from 1 drug or device company from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $518.
General payments to Dr. Greenhill by program year, 2022 to 2023
Companies that paid Dr. Greenhill the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Jacob Greenhill graduated from Arizona College of Osteopathic Medicine Mid Western University
Dr. Greenhill graduated from Arizona College of Osteopathic Medicine Mid Western University in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Jacob Greenhill'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 Data |
| 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 Jacob Greenhill
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 Jacob Greenhill's NPI number?
Dr. Mark Jacob Greenhill's NPI number is 1275096760. It was assigned on April 11, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Jacob Greenhill?
Dr. Mark Jacob Greenhill is a diagnostic radiologist in Cleveland, Ohio. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Mark Jacob Greenhill practice?
Dr. Greenhill practices at 9500 Euclid Avenue, Cleveland, OH 44195. Dr. Greenhill's primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. Dmand AI also links Dr. Greenhill to 3 hospitals, 3 medical groups and 2 clinical labs.
What is Dr. Mark Jacob Greenhill's office phone number?
The practice phone on file for Dr. Greenhill is (216) 952-9829.
What is Dr. Mark Jacob Greenhill's medical license number?
Dr. Greenhill holds Arizona license 8675.
Which hospitals is Dr. Mark Jacob Greenhill affiliated with?
Dr. Greenhill practices at Cleveland Clinic Main Campus in Cleveland, Ohio. Dr. Greenhill is also affiliated with Medina Hospital. Dmand AI links Dr. Greenhill to 3 more hospitals.
What medical group is Dr. Mark Jacob Greenhill part of?
Dr. Greenhill is linked to Cleveland Clinic. Dmand AI links Dr. Greenhill to 3 more medical groups.
Does Dr. Mark Jacob Greenhill accept Medicare?
Yes. CMS lists Dr. Greenhill as accepting Medicare assignment.
Where did Dr. Mark Jacob Greenhill go to medical school?
Dr. Greenhill graduated from Arizona College of Osteopathic Medicine Mid Western University in 2019.
Has Dr. Mark Jacob Greenhill received payments from drug or device companies?
CMS Open Payments shows $518 in general payments to Dr. Greenhill from 1 company from 2022 to 2023. The largest total came from Inari Medical, Inc.
How long has Dr. Mark Jacob Greenhill been practicing?
Dr. Greenhill graduated from medical school in 2019, 7 years ago.
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