Marc Oliver Siegel, MD
Infectious Disease Physician · Washington, DC
Marc Oliver Siegel, MD is an infectious disease physician with a practice address in Washington, District of Columbia, and NPI 1306866140, issued on Jul 21, 2006. Check the license (District of Columbia MD32009, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Marc Oliver Siegel
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- MD32009 DC
Self-reported in NPPES; status is on the state search - Practice location
- 2150 Pennsylvania Ave NW, Washington, DC 20037
- Phone
- (202) 741-2234
- Enumerated
- Jul 21, 2006
- Record last updated
- May 22, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (202) 741-2241
- Medicare enrollment
- Enrolled (PECOS I20090901000265); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1998
- Entity
- Type 1 · individual
Also registered at 2150 Pennsylvania Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmad AalamStudent in an Organized Health Care Education/Training Program1851786909
- Nawaf Abaalkhail, MDCritical Care Medicine (Internal Medicine) Physician1104246958
- Theophilus Abah, MDAnesthesiology Physician1245810696
- Yoosif Abdalla, MDNephrology Physician1679851760
- Rim Abdallah, M.D.Student in an Organized Health Care Education/Training Program1962896886
- Rami AbdulbakiAnatomic Pathology & Clinical Pathology Physician1851950109
Verify Marc Oliver Siegel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD32009Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average infectious disease physician in 2024
1,057 Medicare Part D claims for 115 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 62% of claims.
Most prescribed
- Biktarvy235 claims
- Juluca129 claims
- Dovato92 claims
- Amlodipine Besylate47 claims
- Atorvastatin Calcium40 claims
- Tivicay39 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: $2,830.47
17 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 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
- Medical Faculty Associates, IncWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Infectious Disease Physician providers in District of Columbia
There are 110 infectious disease physician records in District of Columbia.
All 110 in District of Columbia → Every provider in Washington →
Other infectious disease physician records in District of Columbia
- Stephen Abbott, MDWashington, DC1437280450
- Danielle Adams, PA-CWashington, DC1649993270
- Ziad Akl, M.D.Washington, DC1053324301
- Hana Akselrod, MD, MPHWashington, DC1295171353
- Sarah Ali, MDWashington, DC1083848766
- Sarah Alsamarai, MDWashington, DC1902254287
- Gabrielle Aquino, MDWashington, DC1548848575
- Naomi Aronson, M.D.Washington, DC1487680591
- Gayle Balba, M.D.Washington, DC1073570354
- Ronald Beaulieu, MDWashington, DC1508252057
Common questions
What is Marc Oliver Siegel, MD's NPI number?
Marc Oliver Siegel, MD's National Provider Identifier (NPI) is 1306866140, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc Oliver Siegel, MD located?
The NPPES record lists a practice address at 2150 Pennsylvania Ave NW, Washington, DC, 20037. Phone: (202) 741-2234. Providers update this record themselves, so call before visiting.
How can I verify Marc Oliver Siegel, MD's license?
NPPES lists District of Columbia license number MD32009, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc Oliver Siegel, MD prescribe under Medicare Part D?
In 2024, Marc Oliver Siegel, MD had 1,057 Medicare Part D claims for 115 beneficiaries; the average among infectious disease physician prescribers was 689. 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.