Walter Tsou, MD, MPH
NPI 1538486733 · Internal Medicine Physician · Philadelphia, PA
Walter Tsou, MD, MPH is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1538486733).
Provider details
- NPI number
- 1538486733
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD-022587E (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
16 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
- 2010-04-27
- Last updated
- 2010-04-27
Frequently asked questions
- What is Walter Tsou's NPI number?
- Walter Tsou's National Provider Identifier (NPI) is 1538486733, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Tsou's specialty?
- Walter Tsou is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Tsou located?
- Walter Tsou's practice location on file with NPPES is 325 E Durham St, Philadelphia, PA 19119-1219.
- What is Walter Tsou's phone number?
- The practice phone number listed in the NPPES registry for Walter Tsou is (215) 242-6272.
- Is Walter Tsou's NPI active?
- Yes — Walter Tsou's NPI (1538486733) is active in the NPPES registry as of the last update on 2010-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.