Dr. Mark Christopher Zemanek, DO
- Part D claims, 2024
- 326
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2022
- 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. Zemanek'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 Christopher Zemanek is an internal medicine in Cleveland, Ohio
Dr. Zemanek practices at Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation.
Dr. Zemanek's NPI, 1154065886, was assigned on April 27, 2022. Dr. Zemanek graduated from Ohio University, College of Osteopathic Medicine in 2022. Dr. Zemanek holds Ohio license 34.018274.
- NPI
- 1154065886NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527446723
- NPI enumeration date
- April 27, 2022
- 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
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Christopher Zemanek practices at Cleveland Clinic Main Campus in Cleveland, Ohio
Dr. Zemanek'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 Christopher Zemanek is affiliated with 4 sites of care and 1 medical group
Dr. Zemanek's primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. The medical group on file is Cleveland Clinic. Dmand AI also links Dr. Zemanek to 2 more clinical labs and 1 group practice or clinic, each named with a free account. Dr. Zemanek'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 Christopher Zemanek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zemanek practices, 4 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 |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Christopher Zemanek's specialty is physician nutrition specialist
Physician nutrition specialist is Dr. Zemanek's primary specialty in the NPI Registry, under taxonomy code 207RP1002X. Dr. Zemanek is licensed in Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Christopher Zemanek's patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Dr. Zemanek's median patient age at 56, with 56% women.
Dr. Zemanek's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women56%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Mark Christopher Zemanek wrote 326 Medicare Part D claims in 2024
In 2024, Dr. Zemanek wrote 326 Medicare Part D claims for 93 patients. 79% of them were for generic drugs. CMS names the drug for 97 of them, across 6 drugs with 11 or more claims each, at $814 in total drug cost.
Dr. Zemanek's Part D claims by kind of drug, 2024
- Generic257 claims79%
- Brand-name and other69 claims21%
Dr. Zemanek'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.
Drug classes CMS tracks in Dr. Zemanek's Part D claims, 2024
- Antibiotics8%25 of 326 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Dr. Mark Christopher Zemanek takes part in Medicare
Dr. Zemanek 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 Christopher Zemanek graduated from Ohio University, College of Osteopathic Medicine
Dr. Zemanek graduated from Ohio University, College of Osteopathic Medicine in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Christopher Zemanek'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 |
| 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark Christopher Zemanek
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 Christopher Zemanek's NPI number?
Dr. Mark Christopher Zemanek's NPI number is 1154065886. It was assigned on April 27, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Christopher Zemanek?
Dr. Mark Christopher Zemanek is an internal medicine in Cleveland, Ohio. The primary specialty in the NPI Registry is Internal Medicine (taxonomy code 207RP1002X).
Where does Dr. Mark Christopher Zemanek practice?
Dr. Zemanek practices at 9500 Euclid Avenue, Cleveland, OH 44195. Dr. Zemanek's primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. Dmand AI also links Dr. Zemanek to 2 clinical labs and 1 group practice or clinic.
What is Dr. Mark Christopher Zemanek's office phone number?
The practice phone on file for Dr. Zemanek is (216) 952-9829.
What is Dr. Mark Christopher Zemanek's medical license number?
Dr. Zemanek holds Ohio license 34.018274, one of 2 state licenses on file.
Which hospitals is Dr. Mark Christopher Zemanek affiliated with?
Dr. Zemanek practices at Cleveland Clinic Main Campus in Cleveland, Ohio.
What medical group is Dr. Mark Christopher Zemanek part of?
Dr. Zemanek is linked to Cleveland Clinic.
Does Dr. Mark Christopher Zemanek accept Medicare?
Yes. CMS lists Dr. Zemanek as accepting Medicare assignment.
Where did Dr. Mark Christopher Zemanek go to medical school?
Dr. Zemanek graduated from Ohio University, College of Osteopathic Medicine in 2022.
What drugs does Dr. Mark Christopher Zemanek prescribe most?
In 2024 Medicare Part D data, Dr. Zemanek's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
How long has Dr. Mark Christopher Zemanek been practicing?
Dr. Zemanek graduated from medical school in 2022, 4 years ago.
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