Marc Howard Siegelbaum, MD
Urology Physician · Towson, MD
Marc Howard Siegelbaum, MD is a urology physician with a practice address in Towson, Maryland, and NPI 1578547287, issued on Dec 6, 2005. Check the license (Maryland D0028348, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Marc Howard Siegelbaum
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License number
- D0028348 MD
Self-reported in NPPES; status is on the state search - Practice location
- 7505 Osler Dr, Towson, MD 21204
- Phone
- (410) 296-0167
- Enumerated
- Dec 6, 2005
- Record last updated
- Jun 13, 2025
- Fax
- (410) 296-0099
- Medicaid ID
- 211501800 MD
- Medicare enrollment
- Enrolled (PECOS I20040719001293); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1982
- Entity
- Type 1 · individual
Also registered at 7505 Osler Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kam Chan, PHARMD.Pharmacist1598137044
Verify Marc Howard Siegelbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0028348Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average urology physician in 2024
1,421 Medicare Part D claims for 419 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 24 claims were for opioids.
Most prescribed
- Tamsulosin Hcl316 claims
- Oxybutynin Chloride Er208 claims
- Ciprofloxacin Hcl147 claims
- Sulfamethoxazole-Trimethoprim87 claims
- Myrbetriq74 claims
- Gemtesa69 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: $1,426.45
59 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 9,340 providers of this specialty with any payment received $3,800.04 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
- Chesapeake Urology Associates LLCColumbia, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Urology Physician providers in Maryland
There are 311 urology physician records in Maryland.
Other urology physician records in Maryland
- Leslie Abramowitz, M.D.Baltimore, MD1255388690
- Harbhajan Ajrawat, MDGreenbelt, MD1205883881
- Christen Alevizatos, M.D.Baltimore, MD1154376325
- Harold Alfert, M.D.Baltimore, MD1316901903
- Mohamad Allaf, M.D.Baltimore, MD1619912243
- Matthew Allaway, DOCumberland, MD1386750057
- Jordan Angell, MDWestminster, MD1306021076
- Marc Applestein, M.D.Columbia, MD1679511620
- Natalia Arias Villela, MDTowson, MD1699279927
- Barry Aron, MDRockville, MD1760495261
Common questions
What is Marc Howard Siegelbaum, MD's NPI number?
Marc Howard Siegelbaum, MD's National Provider Identifier (NPI) is 1578547287, issued on Dec 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marc Howard Siegelbaum, MD located?
The NPPES record lists a practice address at 7505 Osler Dr, Towson, MD, 21204. Phone: (410) 296-0167. Providers update this record themselves, so call before visiting.
How can I verify Marc Howard Siegelbaum, MD's license?
NPPES lists Maryland license number D0028348, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc Howard Siegelbaum, MD prescribe under Medicare Part D?
In 2024, Marc Howard Siegelbaum, MD had 1,421 Medicare Part D claims for 419 beneficiaries; the average among urology physician prescribers was 1,340. 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.