Liana Michelle Atallah, MD
Internal Medicine Physician · Panorama City, CA
Liana Michelle Atallah, MD is an internal medicine physician with a practice address in Panorama City, California, and NPI 1659860229, issued on May 9, 2018. Check the license (California A189919, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Liana Michelle Atallah
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A189919 CA
Self-reported in NPPES; status is on the state search - Practice location
- 13652 Cantara St, Panorama City, CA 91402
- Phone
- (833) 574-2273
- Enumerated
- May 9, 2018
- Record last updated
- Nov 10, 2025
- Medicare enrollment
- Enrolled (PECOS I20230926003578); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 13652 Cantara St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Liana Michelle Atallah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A189919Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
238 Medicare Part D claims for 43 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Vancomycin Hcl33 claims
- Ceftriaxone29 claims
- Cresemba24 claims
- Sulfamethoxazole-Trimethoprim23 claims
- Amoxicillin22 claims
- Daptomycin14 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.
Bills Medicare through 2 group practices
- Southern California Permanente Medical GroupPanorama City, CA
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Liana Michelle Atallah among 17,696 internal medicine physician records in California
Liana Michelle Atallah, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
113 internal medicine physician records list a practice address in Panorama City
They are 113 of the 1,412 NPPES records with a practice address in Panorama City, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Panorama City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carrie Algozine, DOPanorama City, CA 914021134290067
- Joselito Babaran, MDPanorama City, CA 914021225072564
- Loren Chen, M.D.Panorama City, CA 914021972581643
- Shehnaz Habib, M.D.Panorama City, CA 914021215039631
- Ridhika Kapur, MDPanorama City, CA 914021396838728
- Cyrus Lavian, M.D.Panorama City, CA 914021548283526
- Joann Mendoza, MDPanorama City, CA 914021114010543
- Alan Pollack, MDPanorama City, CA 914021477624401
Common questions
What is Liana Michelle Atallah, MD's NPI number?
Liana Michelle Atallah, MD's National Provider Identifier (NPI) is 1659860229, issued on May 9, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Liana Michelle Atallah, MD located?
The NPPES record lists a practice address at 13652 Cantara St, Panorama City, CA, 91402. Phone: (833) 574-2273. Providers update this record themselves, so call before visiting.
How can I verify Liana Michelle Atallah, MD's license?
NPPES lists California license number A189919, as entered by the provider. 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 Liana Michelle Atallah, MD prescribe under Medicare Part D?
In 2024, Liana Michelle Atallah, MD had 238 Medicare Part D claims for 43 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.