IndividualActive
Marc Leffer, M.D.
NPI 1184610545 · Emergency Medicine Physician · Clinton, MD
Marc Leffer, M.D. is a Emergency Medicine Physician provider in Clinton, MD (NPI 1184610545).
Provider details
- NPI number
- 1184610545
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- D0036538 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
7503 Surratts Rd
Clinton, MD 20735-3358
Phone: (301) 870-7001
Fax: (301) 870-6697
Street-level locationGet directions
Mailing address
7503 Surratts Rd
Clinton, MD 20735-3358
Registry dates
- Enumerated
- 2005-09-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marc Leffer's NPI number?
- Marc Leffer's National Provider Identifier (NPI) is 1184610545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Leffer's specialty?
- Marc Leffer is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Leffer located?
- Marc Leffer's practice location on file with NPPES is 7503 Surratts Rd, Clinton, MD 20735-3358.
- What is Marc Leffer's phone number?
- The practice phone number listed in the NPPES registry for Marc Leffer is (301) 870-7001.
- Is Marc Leffer's NPI active?
- Yes — Marc Leffer's NPI (1184610545) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.