Mara Ernst, DO
Dermatology Physician · Cincinnati, OH
Mara Ernst, DO is a dermatology physician with a practice address in Cincinnati, Ohio, and NPI 1538747753, issued on Mar 30, 2021. Check the license (Ohio 34.016652, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Mara Ernst
- Credential
- DO
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 34.016652 OH
Self-reported in NPPES; status is on the state search - Practice location
- 8240 Northcreek Dr, Cincinnati, OH 45236
- Phone
- (513) 246-7546
- Enumerated
- Mar 30, 2021
- Record last updated
- Aug 21, 2025
- Fax
- (513) 246-5289
- Medicare enrollment
- Enrolled (PECOS I20250904002056); accepts Medicare assignment
- Medical or professional school
- Ohio University, College Of Osteopathic Medicine, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 507 in Ohio → Look up another NPI →
Also registered at 8240 Northcreek Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Heather Bennett, CNPFamily Nurse Practitioner1215448832
- Andrew Blain, DPTPhysical Therapist1346797248
- Taylor BoschPhysical Medicine & Rehabilitation Physician1235750308
- Anantha Brahmamdam, MDInternal Medicine Physician1497702039
- David Broomall, MDDermatology Physician1164469144
- Joy Cheng, M.D.Pediatrics Physician1124550629
Verify Mara Ernst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34.016652Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average dermatology physician in 2024
213 Medicare Part D claims for 46 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Ketoconazole27 claims
- Triamcinolone Acetonide26 claims
- Clobetasol Propionate24 claims
- Doxycycline Monohydrate16 claims
- Tacrolimus16 claims
- Fluocinolone Acetonide15 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.
Industry payments in 2024: $267.66
2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Scientific Affairs, LLC. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Trihealth H LLCCincinnati, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mara Ernst among 507 dermatology physician records in Ohio
Mara Ernst, DO is one of 507 dermatology physician records with a practice address in Ohio. 86% 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 92% of them.
- NPI issued2021 · 92% of these records are older, 4% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2021 · median 2007 among the 376 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Ohio
There are 507 dermatology physician records in Ohio.
All 507 in Ohio → Every provider in Cincinnati → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- David Broomall, MDCincinnati, OH 452361164469144
- Emily Fisher, M.D.Cincinnati, OH 452361578670147
- Jacqueline Fisher, DOCincinnati, OH 452361528401213
- Mona Foad, MDCincinnati, OH 452361316011661
- Rachel Gustin, MDCincinnati, OH 452361790733897
- Matthew Meier, MDCincinnati, OH 452361891914198
- Mona Mislankar, M.D.Cincinnati, OH 452361669714820
- Emily Moosbrugger, MDCincinnati, OH 452361841401254
Common questions
What is Mara Ernst, DO's NPI number?
Mara Ernst, DO's National Provider Identifier (NPI) is 1538747753, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mara Ernst, DO located?
The NPPES record lists a practice address at 8240 Northcreek Dr, Cincinnati, OH, 45236. Phone: (513) 246-7546. Providers update this record themselves, so call before visiting.
How can I verify Mara Ernst, DO's license?
NPPES lists Ohio license number 34.016652, 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 Mara Ernst, DO prescribe under Medicare Part D?
In 2024, Mara Ernst, DO had 213 Medicare Part D claims for 46 beneficiaries; the average among dermatology physician prescribers was 797. 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.