Marc Siegel, MD
NPI 1306866140 · Infectious Disease Physician · Washington, DC
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Siegel, MD is a Infectious Disease Physician provider in Washington, DC (NPI 1306866140).
Provider details
- NPI number
- 1306866140
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD32009 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
532 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 172 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 107 | $140 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 79 | $137 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 54 | $18 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 28 | $53 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 235 | 32 |
| Dolutegravir/Rilpivirinebrand: Juluca | 129 | 14 |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 92 | 12 |
| Amlodipine Besylate | 47 | — |
| Atorvastatin Calcium | 40 | 11 |
| Dolutegravir Sodiumbrand: Tivicay | 39 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,830 across 17 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2009-05-22
Frequently asked questions
- What is Marc Siegel's NPI number?
- Marc Siegel's National Provider Identifier (NPI) is 1306866140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Siegel's specialty?
- Marc Siegel is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Siegel located?
- Marc Siegel's practice location on file with NPPES is 2150 Pennsylvania Ave Nw, Washington, DC 20037-3201.
- What is Marc Siegel's phone number?
- The practice phone number listed in the NPPES registry for Marc Siegel is (202) 741-2234.
- Does Marc Siegel accept Medicare?
- Marc Siegel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Siegel's NPI active?
- Yes — Marc Siegel's NPI (1306866140) is active in the NPPES registry as of the last update on 2009-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.