Mariah Ondeck
Internal Medicine Physician · Cleveland, OH
Mariah Ondeck is an internal medicine physician with a practice address in Cleveland, Ohio, and NPI 1508445842, issued on Apr 5, 2021. Check the license (Ohio 35.151096, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Mariah Ondeck
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35.151096 OH
Self-reported in NPPES; status is on the state search - Practice location
- 9500 Euclid Ave # NA-23, Cleveland, OH 44195
- Phone
- (216) 444-2200
- Enumerated
- Apr 5, 2021
- Record last updated
- May 21, 2024
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 9500 Euclid Ave # NA-23
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mariah Ondeck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.151096Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
359 Medicare Part D claims for 74 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium37 claims
- Pantoprazole Sodium17 claims
- Mirtazapine13 claims
- Amlodipine Besylate12 claims
- Hydrochlorothiazide12 claims
- Lisinopril12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Mariah Ondeck among 5,277 internal medicine physician records in Ohio
Mariah Ondeck is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
897 internal medicine physician records list a practice address in Cleveland
They are 897 of the 30,748 NPPES records with a practice address in Cleveland, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Cleveland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dhia Aldoori, MDCleveland, OH 441951619941358
- Elena Borukh, MDCleveland, OH 441951497718480
- Steven Feinleib, MDCleveland, OH 441951033173141
- Brian Harte, M.D.Cleveland, OH 441951871557496
- Stephen Hayden, M.D.Cleveland, OH 441951003870551
- Alan Hull, M.D., PH.D.Cleveland, OH 441951235192964
- J Harry Isaacson, MDCleveland, OH 441951639133192
- Anil Jain, MDCleveland, OH 441951700840287
Common questions
What is Mariah Ondeck's NPI number?
Mariah Ondeck's National Provider Identifier (NPI) is 1508445842, issued on Apr 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mariah Ondeck located?
The NPPES record lists a practice address at 9500 Euclid Ave # NA-23, Cleveland, OH, 44195. Phone: (216) 444-2200. Providers update this record themselves, so call before visiting.
How can I verify Mariah Ondeck's license?
NPPES lists Ohio license number 35.151096, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mariah Ondeck prescribe under Medicare Part D?
In 2024, Mariah Ondeck had 359 Medicare Part D claims for 74 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.