Daniel Paul Markmann, M.D.
Specialist · Ellicott City, MD
Daniel Paul Markmann, M.D. is a specialist with a practice address in Ellicott City, Maryland, and NPI 1790827004, issued on Feb 13, 2007. Check the license (Maryland D42642, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Daniel Paul Markmann
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- D42642 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2850 N Ridge RD, Ellicott City, MD 21043
- Phone
- (410) 465-3600
- Enumerated
- Feb 13, 2007
- Record last updated
- Aug 11, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (410) 465-3960
- Entity
- Type 1 · individual
8 nearest specialist records → All 938 in Maryland → Look up another NPI →
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Verify Daniel Paul Markmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license D42642Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average specialist in 2024
15 Medicare Part D claims, against an average of 1,380 among the 8,233 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.
Daniel Paul Markmann among 938 specialist records in Maryland
Daniel Paul Markmann, M.D. is one of 938 specialist records with a practice address in Maryland. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 61% of them.
- NPI issued2007 · 61% of these records are older, 28% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileNo · 23% of these records are
- Record last updated2009 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 specialist records list a practice address in Ellicott City
They are 18 of the 1,648 NPPES records with a practice address in Ellicott City, and 938 specialist records in Maryland.
All 938 in Maryland → Every provider in Ellicott City → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Laurie Alcock, LMTEllicott City, MD 210431982049714
- Julie Deshong, OTR/LEllicott City, MD 210431316125636
- Carol Miller, OTR/LEllicott City, MD 210431619249398
- Jeannette Nussbaum, R.N.Ellicott City, MD 210431215257159
- Mohan Amlani, M.D.Ellicott City, MD 210421720068968
- Heather Amos, CMTEllicott City, MD 210421437374733
- John Casey, CMTEllicott City, MD 210421043427560
- Imtiaz Chowdhry, M.D.Columbia, MD 210441699741439
Common questions
What is Daniel Paul Markmann, M.D.'s NPI number?
Daniel Paul Markmann, M.D.'s National Provider Identifier (NPI) is 1790827004, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Paul Markmann, M.D. located?
The NPPES record lists a practice address at 2850 N Ridge RD, Ellicott City, MD, 21043. Phone: (410) 465-3600. Providers update this record themselves, so call before visiting.
How can I verify Daniel Paul Markmann, M.D.'s license?
NPPES lists Maryland license number D42642, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Daniel Paul Markmann, M.D. prescribe under Medicare Part D?
In 2024, Daniel Paul Markmann, M.D. had 15 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.