Marina Liem, MD
NPI 1265412753 · Diagnostic Radiology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marina Liem, MD is a Diagnostic Radiology Physician provider in Philadelphia, PA (NPI 1265412753).
Provider details
- NPI number
- 1265412753
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD042422E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,775 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 1,451 | $9 |
| X-Ray of Chest, 2 Views71046 | 436 | $11 |
| Ct Scan of Blood Vessels and Grafts of Heart With Contrast75574 | 193 | $116 |
| Ct Scan of Chest Without Contrast71250 | 187 | $52 |
| Ct Scan Head Or Brain Without Contrast70450 | 147 | $40 |
| Ct Scan of Blood Vessels of Abdomen and Pelvis With Contrast74174 | 145 | $103 |
| Ct Scan of Heart Structure With Contrast75572 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-19
- Last updated
- 2011-10-05
Frequently asked questions
- What is Marina Liem's NPI number?
- Marina Liem's National Provider Identifier (NPI) is 1265412753, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marina Liem's specialty?
- Marina Liem is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Marina Liem located?
- Marina Liem's practice location on file with NPPES is 3998 Red Lion Rd, Philadelphia, PA 19114-1436.
- What is Marina Liem's phone number?
- The practice phone number listed in the NPPES registry for Marina Liem is (215) 612-4021.
- Does Marina Liem accept Medicare?
- Marina Liem is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marina Liem's NPI active?
- Yes — Marina Liem's NPI (1265412753) is active in the NPPES registry as of the last update on 2011-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.