Mark Lieber, MD
NPI 1467072678 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Lieber, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1467072678).
Provider details
- NPI number
- 1467072678
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A185243 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 44 |
| Atorvastatin Calcium | 27 |
| Sertraline Hcl | 18 |
| Levothyroxine Sodium | 17 |
| Pantoprazole Sodium | 16 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 16 |
| Diclofenac Sodium | 15 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$445 across 16 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-17
- Last updated
- 2023-07-17
- Certified
- 2023-07-17
Frequently asked questions
- What is Mark Lieber's NPI number?
- Mark Lieber's National Provider Identifier (NPI) is 1467072678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lieber's specialty?
- Mark Lieber is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lieber located?
- Mark Lieber's practice location on file with NPPES is 1300 N Mission Rd, Los Angeles, CA 90033-1021.
- What is Mark Lieber's phone number?
- The practice phone number listed in the NPPES registry for Mark Lieber is (323) 409-8255.
- Does Mark Lieber accept Medicare?
- Mark Lieber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Lieber's NPI active?
- Yes — Mark Lieber's NPI (1467072678) is active in the NPPES registry as of the last update on 2023-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.