Mark Darnell, MD
Emergency Medicine Physician · Lancaster, OH
Mark Darnell, MD is an emergency medicine physician with a practice address in Lancaster, Ohio, and NPI 1902891088, issued on Sep 15, 2005. Check the license (Ohio 35057532D, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Mark Darnell
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 35057532D OH
Self-reported in NPPES; status is on the state search - Practice location
- 401 N Ewing St, Lancaster, OH 43130
- Phone
- (740) 687-8000
- Enumerated
- Sep 15, 2005
- Record last updated
- Jun 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (740) 687-8939
- Medicaid ID
- 0816237 OH
- Medicare enrollment
- Enrolled (PECOS I20041227000422); accepts Medicare assignment
- Medical or professional school
- West Virginia University School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,002 in Ohio → Look up another NPI →
Also registered at 401 N Ewing St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Salomon Ahumada Sabagh, DOEmergency Medicine Physician1437809720
- Nawal Al-NouriRegistered Dietitian1235517368
- Mhmtjamil Alkhalaf, MDFamily Medicine Physician1407429574
- Todd Armen, MDAnesthesiology Physician1265557680
- Sarah Asbridge, D.O.Emergency Medicine Physician1710297304
- Amanda Baker, CNPAcute Care Nurse Practitioner1205232287
Verify Mark Darnell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35057532DCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average emergency medicine physician in 2024
68 Medicare Part D claims for 50 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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: $33.52
2 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 12,335 providers of this specialty with any payment received $953.79 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
- Emergency Medicine Physicians OF Lancaster LtdLancaster, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Darnell among 3,002 emergency medicine physician records in Ohio
Mark Darnell, MD is one of 3,002 emergency medicine physician records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1987 · median 2013 among the 1,720 with a school on file
- Record last updated2011 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Ohio
There are 3,002 emergency medicine physician records in Ohio.
All 3,002 in Ohio → Every provider in Lancaster → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Salomon Ahumada Sabagh, DOLancaster, OH 431301437809720
- Sarah Asbridge, D.O.Lancaster, OH 431301710297304
- Kevin Bowman, MDLancaster, OH 431301720073125
- Michelle DecosteLancaster, OH 431301083609978
- Robert Dominguez, M.D.Lancaster, OH 431301619965472
- Robert Mervis, DOLancaster, OH 431301346221587
- Charles Pruitt, MDLancaster, OH 431301194706341
- Russell Rudy, MDLancaster, OH 431301790766988
Common questions
What is Mark Darnell, MD's NPI number?
Mark Darnell, MD's National Provider Identifier (NPI) is 1902891088, issued on Sep 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Darnell, MD located?
The NPPES record lists a practice address at 401 N Ewing St, Lancaster, OH, 43130. Phone: (740) 687-8000. Providers update this record themselves, so call before visiting.
How can I verify Mark Darnell, MD's license?
NPPES lists Ohio license number 35057532D, 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 Mark Darnell, MD prescribe under Medicare Part D?
In 2024, Mark Darnell, MD had 68 Medicare Part D claims for 50 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.