Katerina Mary Zakka, MD
Internal Medicine Physician · Los Angeles, CA
Katerina Mary Zakka, MD is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1013544337, issued on Mar 25, 2020. Check the license (California A184972, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katerina Mary Zakka
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A184972 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5971 Venice Blvd, Los Angeles, CA 90034
- Phone
- (323) 857-2000
- Enumerated
- Mar 25, 2020
- Record last updated
- Oct 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20231103001047); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5971 Venice Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katerina Mary Zakka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A184972Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,229 Medicare Part D claims for 380 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 91 claims were for opioids.
Most prescribed
- Atorvastatin Calcium163 claims
- Amlodipine Besylate162 claims
- Losartan Potassium103 claims
- Metformin Hcl81 claims
- Lisinopril76 claims
- Gabapentin68 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 one group practice
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katerina Mary Zakka among 17,696 internal medicine physician records in California
Katerina Mary Zakka, 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 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 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).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
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Common questions
What is Katerina Mary Zakka, MD's NPI number?
Katerina Mary Zakka, MD's National Provider Identifier (NPI) is 1013544337, issued on Mar 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Katerina Mary Zakka, MD located?
The NPPES record lists a practice address at 5971 Venice Blvd, Los Angeles, CA, 90034. Phone: (323) 857-2000. Providers update this record themselves, so call before visiting.
How can I verify Katerina Mary Zakka, MD's license?
NPPES lists California license number A184972, 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 Katerina Mary Zakka, MD prescribe under Medicare Part D?
In 2024, Katerina Mary Zakka, MD had 2,229 Medicare Part D claims for 380 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.