Shawn Younessi
Internal Medicine Physician · Tarzana, CA
Shawn Younessi is an internal medicine physician with a practice address in Tarzana, California, and NPI 1629503842, issued on Apr 25, 2017. Check the license (California A159934, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shawn Younessi
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A159934 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18840 Ventura Blvd Ste 207, Tarzana, CA 91356
- Phone
- (818) 654-8111
- Enumerated
- Apr 25, 2017
- Record last updated
- Mar 10, 2025
- Fax
- (818) 757-1311
- Medicare enrollment
- Enrolled (PECOS I20250210003499); 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 18840 Ventura Blvd Ste 207
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeremy Schwieger, M.D.Nephrology Physician1164453437
- Paul Sogol, MDEndocrinology, Diabetes & Metabolism Physician1538235718
Verify Shawn Younessi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A159934Check 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
1,086 Medicare Part D claims for 120 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Atorvastatin Calcium91 claims
- Metformin Hcl76 claims
- Jardiance60 claims
- Amlodipine Besylate58 claims
- Ozempic57 claims
- Losartan Potassium52 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: $118.24
6 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Jeremy Schwieger MD A Medical CorporationTarzana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shawn Younessi among 17,696 internal medicine physician records in California
Shawn Younessi 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 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · 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).
41 internal medicine physician records list a practice address in Tarzana
They are 41 of the 2,122 NPPES records with a practice address in Tarzana, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Tarzana → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Abrams, M.D.Tarzana, CA 913561881690865
- Kevin Berger, M.D.Tarzana, CA 913561972522704
- Samuel Elias, M.D.Tarzana, CA 913561982684023
- Azita Fakheri, MDTarzana, CA 913561669410270
- Jeffrey Galpin, M.D.Tarzana, CA 913561386679561
- David Grossman, M.D.Tarzana, CA 913561700843117
- Robert Kayland, M.D.Tarzana, CA 913561871558031
- Gerald Kovar, M.D.Tarzana, CA 913561306883699
Common questions
What is Shawn Younessi's NPI number?
Shawn Younessi's National Provider Identifier (NPI) is 1629503842, issued on Apr 25, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Shawn Younessi located?
The NPPES record lists a practice address at 18840 Ventura Blvd Ste 207, Tarzana, CA, 91356. Phone: (818) 654-8111. Providers update this record themselves, so call before visiting.
How can I verify Shawn Younessi's license?
NPPES lists California license number A159934, 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 Shawn Younessi prescribe under Medicare Part D?
In 2024, Shawn Younessi had 1,086 Medicare Part D claims for 120 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.