Michael H. Mark, MD
Neurology Physician · Millsboro, DE
Michael H. Mark, MD is a neurology physician with a practice address in Millsboro, Delaware, and NPI 1821082892, issued on Sep 7, 2005. Check the license (Delaware C1-0003541, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Michael H. Mark
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- C1-0003541 DE
Self-reported in NPPES; status is on the state search - Practice location
- 28467 Dupont Blvd, Millsboro, DE 19966
- Phone
- (302) 933-0111
- Enumerated
- Sep 7, 2005
- Record last updated
- Apr 9, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (302) 933-0990
- Medicaid ID
- 0000245501 DE
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 65 in Delaware → Look up another NPI →
Also registered at 28467 Dupont Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael H. Mark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C1-0003541Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average neurology physician in 2024
64 Medicare Part D claims for 20 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Primidone11 claims
- Topiramate11 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.
Michael H. Mark among 65 neurology physician records in Delaware
Michael H. Mark, MD is one of 65 neurology physician records with a practice address in Delaware. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2013 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Delaware
There are 65 neurology physician records in Delaware.
All 65 in Delaware → Every provider in Millsboro → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Lawrence Kemp, M.D.Millsboro, DE 199661619916855
- Jay Dave, D.O.Milford, DE 199631215159488
- Raid Kofahi, MDMilford, DE 199631770580094
- Gina Alderson, MDSeaford, DE 199731619032752
- Bruce Dopler, MDSeaford, DE 199731992860027
- Raju Maharjan, M.D.Seaford, DE 199731033367578
- Paul Peet, M.D.Lewes, DE 199581235151507
- William Thomas, M.D.Lewes, DE 199581700825569
Common questions
What is Michael H. Mark, MD's NPI number?
Michael H. Mark, MD's National Provider Identifier (NPI) is 1821082892, issued on Sep 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael H. Mark, MD located?
The NPPES record lists a practice address at 28467 Dupont Blvd, Millsboro, DE, 19966. Phone: (302) 933-0111. Providers update this record themselves, so call before visiting.
How can I verify Michael H. Mark, MD's license?
NPPES lists Delaware license number C1-0003541, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael H. Mark, MD prescribe under Medicare Part D?
In 2024, Michael H. Mark, MD had 64 Medicare Part D claims for 20 beneficiaries; the average among neurology physician prescribers was 1,370. 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.