Registry data as of Aug 27, 2026

Alla Liberstein, M.D.

Internal Medicine Physician · Porterville, CA

Alla Liberstein, M.D. is an internal medicine physician with a practice address in Porterville, California, and NPI 1164613899, issued on Aug 7, 2007. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1164613899
Name
Alla Liberstein
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
560 W Putnam Ave, Porterville, CA 93257
Phone
(559) 854-7001
Enumerated
Aug 7, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 560 W Putnam Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Syed Hasnain, M.D.Ophthalmology Physician1821040759
  2. Martha Prudencio, DDSDentist1528124187
  3. Ramasamy Seralathan, M.D.,Surgery Physician1174533319
  4. Oscar Velasco, MDFamily Medicine Physician1689778235
  5. Brian Williams, PA-CPhysician Assistant1598701914

Verify Alla Liberstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

24% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,123 Medicare Part D claims for 162 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 323 claims were for opioids.

  1. Alla Liberstein2,123
  2. Specialty average2,785

Most prescribed

  1. Hydrocodone-Acetaminophen194 claims
  2. Alprazolam85 claims
  3. Gabapentin53 claims
  4. Dilt-Xr52 claims
  5. Levothyroxine Sodium39 claims
  6. Amlodipine Besylate38 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $60.18

3 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alla Liberstein$60.18
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Complete Care Community Health Center, IncLos Angeles, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

27 internal medicine physician records list a Porterville practice address

They are 27 of the 795 NPPES records with a Porterville practice address, and 20,403 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Alla Liberstein, M.D.'s NPI number?

Alla Liberstein, M.D.'s National Provider Identifier (NPI) is 1164613899, issued on Aug 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alla Liberstein, M.D. located?

The NPPES record lists a practice address at 560 W Putnam Ave, Porterville, CA, 93257. Phone: (559) 854-7001. Providers update this record themselves, so call before visiting.

How can I verify Alla Liberstein, M.D.'s license?

Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alla Liberstein, M.D. prescribe under Medicare Part D?

In 2024, Alla Liberstein, M.D. had 2,123 Medicare Part D claims for 162 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.