IndividualActive
Mark Liu
NPI 1902203995 · Pharmacist · Philadelphia, PA
Mark Liu is a Pharmacist provider in Philadelphia, PA (NPI 1902203995).
Provider details
- NPI number
- 1902203995
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- RP444068 (PA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(79/100 index)
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
100% 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
1550 Pratt St
Philadelphia, PA 19124
Phone: (267) 686-8800
Fax: (267) 686-8745
Street-level locationGet directions
Mailing address
1550 Pratt St
Philadelphia, PA 19124-1923
Additional practice locations (1)
- 338 E Allegheny AvePhiladelphia, PA 19134-2321Phone: (215) 634-4397
Registry dates
- Enumerated
- 2014-11-19
- Last updated
- 2025-06-27
- Certified
- 2025-06-27
Frequently asked questions
- What is Mark Liu's NPI number?
- Mark Liu's National Provider Identifier (NPI) is 1902203995, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Liu's specialty?
- Mark Liu is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Mark Liu located?
- Mark Liu's practice location on file with NPPES is 1550 Pratt St, Philadelphia, PA 19124.
- What is Mark Liu's phone number?
- The practice phone number listed in the NPPES registry for Mark Liu is (267) 686-8800.
- Is Mark Liu's NPI active?
- Yes — Mark Liu's NPI (1902203995) is active in the NPPES registry as of the last update on 2025-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.