Timothy Day, M.D.
NPI 1912392077 · Internal Medicine Physician · Philadelphia, PA
Timothy Day, M.D. is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1912392077).
Provider details
- NPI number
- 1912392077
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 3400 Spruce StPhiladelphia, PA 19104-4238Phone: (215) 349-5200
Registry dates
- Enumerated
- 2015-04-05
- Last updated
- 2018-06-26
Frequently asked questions
- What is Timothy Day's NPI number?
- Timothy Day's National Provider Identifier (NPI) is 1912392077, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Day's specialty?
- Timothy Day is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Day located?
- Timothy Day's practice location on file with NPPES is 3900 Woodland Ave, Philadelphia, PA 19104.
- What is Timothy Day's phone number?
- The practice phone number listed in the NPPES registry for Timothy Day is (215) 823-5800.
- Is Timothy Day's NPI active?
- Yes — Timothy Day's NPI (1912392077) is active in the NPPES registry as of the last update on 2018-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.