Louis Demaria, MD
NPI 1508919721 · Geriatric Medicine (Family Medicine) Physician · Philadelphia, PA
Louis Demaria, MD is a Geriatric Medicine (Family Medicine) Physician provider in Philadelphia, PA (NPI 1508919721).
Provider details
- NPI number
- 1508919721
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD 035736E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2007-01-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Louis Demaria's NPI number?
- Louis Demaria's National Provider Identifier (NPI) is 1508919721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Demaria's specialty?
- Louis Demaria is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Demaria located?
- Louis Demaria's practice location on file with NPPES is 1901 Market St, Philadelphia, PA 19103-1400.
- What is Louis Demaria's phone number?
- The practice phone number listed in the NPPES registry for Louis Demaria is (215) 241-2846.
- Is Louis Demaria's NPI active?
- Yes — Louis Demaria's NPI (1508919721) 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.