Seif Sleiman, M.D.
Internal Medicine Physician · Woodland Hills, CA
Seif Sleiman, M.D. is an internal medicine physician with a practice address in Woodland Hills, California, and NPI 1255564852, issued on Aug 29, 2009. Check the license (California A118775, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Seif Sleiman
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A118775 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5601 DE Soto Ave, Woodland Hills, CA 91367
- Phone
- (626) 405-3697
- Enumerated
- Aug 29, 2009
- Record last updated
- Oct 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20131015001917); 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 5601 DE Soto Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Houry Abajian, PHARM.D.Pharmacist1235297383
- Cecille Abeleda, RCP, RRTRegistered Respiratory Therapist1316424872
- Sunitha AbrahamCertified Respiratory Therapist1114409679
- Arineh AbramPharmacist1760108401
- Stephano Abusleme, DOStudent in an Organized Health Care Education/Training Program1538747639
- Ani Adamian, PHARM DPharmacist1043841851
Verify Seif Sleiman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118775Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,071 Medicare Part D claims for 251 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 26 claims were for opioids.
Most prescribed
- Omeprazole87 claims
- Furosemide67 claims
- Eliquis42 claims
- Carvedilol38 claims
- Lisinopril37 claims
- Atorvastatin Calcium33 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).
Seif Sleiman among 17,696 internal medicine physician records in California
Seif Sleiman, M.D. 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 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2007 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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).
105 internal medicine physician records list a practice address in Woodland Hills
They are 105 of the 4,455 NPPES records with a practice address in Woodland Hills, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Woodland Hills → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paz Eilat, M.D.Woodland Hills, CA 913671053425108
- Thomas Gruhlke, M.D.Woodland Hills, CA 913671437132438
- Benjamin Hashem, MDWoodland Hills, CA 913671184668154
- Marion Ho, M.D.Woodland Hills, CA 913671003929225
- Allan Kurtz, D.O.Woodland Hills, CA 913671679656946
- Anthony Nguyen, MDWoodland Hills, CA 913671821162736
- Ting Pan, MDWoodland Hills, CA 913671205856986
- Vishal Patel, M.D.Woodland Hills, CA 913671316956337
Common questions
What is Seif Sleiman, M.D.'s NPI number?
Seif Sleiman, M.D.'s National Provider Identifier (NPI) is 1255564852, issued on Aug 29, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Seif Sleiman, M.D. located?
The NPPES record lists a practice address at 5601 DE Soto Ave, Woodland Hills, CA, 91367. Phone: (626) 405-3697. Providers update this record themselves, so call before visiting.
How can I verify Seif Sleiman, M.D.'s license?
NPPES lists California license number A118775, 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 Seif Sleiman, M.D. prescribe under Medicare Part D?
In 2024, Seif Sleiman, M.D. had 1,071 Medicare Part D claims for 251 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.