Alla Liberstein, M.D.
NPI 1164613899 · Internal Medicine Physician · Porterville, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alla Liberstein, M.D. is a Internal Medicine Physician provider in Porterville, CA (NPI 1164613899).
Provider details
- NPI number
- 1164613899
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A100462 (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
18 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 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 194 | 44 |
| Alprazolam | 85 | 21 |
| Gabapentin | 53 | 20 |
| Diltiazem Hclbrand: Dilt-Xr | 52 | — |
| Levothyroxine Sodium | 39 | 18 |
| Amlodipine Besylate | 38 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$60 across 3 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
- 2007-08-07
- Last updated
- 2019-08-20
Frequently asked questions
- What is Alla Liberstein's NPI number?
- Alla Liberstein's National Provider Identifier (NPI) is 1164613899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alla Liberstein's specialty?
- Alla Liberstein is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alla Liberstein located?
- Alla Liberstein's practice location on file with NPPES is 560 W Putnam Ave, Porterville, CA 93257-3269.
- What is Alla Liberstein's phone number?
- The practice phone number listed in the NPPES registry for Alla Liberstein is (559) 854-7001.
- Does Alla Liberstein accept Medicare?
- Alla Liberstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alla Liberstein's NPI active?
- Yes — Alla Liberstein's NPI (1164613899) is active in the NPPES registry as of the last update on 2019-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.