Charles Peter Tsouvalas, MD
Hospitalist Physician · Los Angeles, CA
Charles Peter Tsouvalas, MD is a hospitalist physician with a practice address in Los Angeles, California, and NPI 1184251357, issued on Mar 26, 2020. Check the license (California A191728, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles Peter Tsouvalas
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A191728 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4733 W Sunset Blvd FL 3, Los Angeles, CA 90027
- Phone
- (227) 574-2273
- Enumerated
- Mar 26, 2020
- Record last updated
- Feb 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20240226004095); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 4733 W Sunset Blvd FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew AbayanStudent in an Organized Health Care Education/Training Program1912589391
- Riad Abdulmoniem, MDStudent in an Organized Health Care Education/Training Program1215730841
- Dishan AbeydeeraStudent in an Organized Health Care Education/Training Program1265291413
- Alyssa AbramStudent in an Organized Health Care Education/Training Program1508626300
- Max Abramson, MDStudent in an Organized Health Care Education/Training Program1093579286
- Shalini Agrawal, DOStudent in an Organized Health Care Education/Training Program1316707888
Verify Charles Peter Tsouvalas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A191728Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average hospitalist physician in 2024
619 Medicare Part D claims for 230 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium33 claims
- Amlodipine Besylate23 claims
- Clopidogrel20 claims
- Furosemide20 claims
- Losartan Potassium20 claims
- Pantoprazole Sodium19 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).
Charles Peter Tsouvalas among 3,099 hospitalist physician records in California
Charles Peter Tsouvalas, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 85% of them.
- NPI issued2020 · 85% of these records are older, 10% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2020 · median 2010 among the 2,505 with a school on file
- Record last updated2024 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Los Angeles → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Victor Chen, M.D.Los Angeles, CA 900271588009583
- Chaddy ElhawaryLos Angeles, CA 900271154715514
- Luis Gomez Villalobos, M.D.Los Angeles, CA 900271205254224
- Josephine Haduong, M.D.Los Angeles, CA 900271780857573
- Sarah Javaherifar, MD, MPHLos Angeles, CA 900271528695939
- Sandra Kang, MDLos Angeles, CA 900271588051635
- Margaret Mou, D.O.Los Angeles, CA 900271679955306
- Angad Rai, M.D.Los Angeles, CA 900271144654880
Common questions
What is Charles Peter Tsouvalas, MD's NPI number?
Charles Peter Tsouvalas, MD's National Provider Identifier (NPI) is 1184251357, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Charles Peter Tsouvalas, MD located?
The NPPES record lists a practice address at 4733 W Sunset Blvd FL 3, Los Angeles, CA, 90027. Phone: (227) 574-2273. Providers update this record themselves, so call before visiting.
How can I verify Charles Peter Tsouvalas, MD's license?
NPPES lists California license number A191728, 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 Charles Peter Tsouvalas, MD prescribe under Medicare Part D?
In 2024, Charles Peter Tsouvalas, MD had 619 Medicare Part D claims for 230 beneficiaries; the average among hospitalist physician prescribers was 521. 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.