Sam Chitsaz, M.D.
Cardiovascular Disease Physician · Antioch, CA
Sam Chitsaz, M.D. is a cardiovascular disease physician with a practice address in Antioch, California, and NPI 1821364084, issued on Mar 31, 2012. Check the license (California A153515, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sam Chitsaz
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- A153515 CA
R6761 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4053 Lone Tree Way Ste 200, Antioch, CA 94531
- Phone
- (925) 776-7725
- Enumerated
- Mar 31, 2012
- Record last updated
- Oct 23, 2025
- Fax
- (510) 506-7728
- Medicare enrollment
- Enrolled (PECOS I20211117000473); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 4053 Lone Tree Way Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Edward Youn, DPMFoot & Ankle Surgery Podiatrist1235472754
Verify Sam Chitsaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A153515Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,431 Medicare Part D claims for 282 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Atorvastatin Calcium187 claims
- Metoprolol Succinate162 claims
- Eliquis140 claims
- Carvedilol132 claims
- Lisinopril84 claims
- Amlodipine Besylate74 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: $55.65
1 payment: food and beverage; the largest payer was Kestra Medical Technology Services, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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 2 group practices
- Pittsburg-Antioch Medical Group A Professional CorporationPittsburg, CA
- Sutter Bay Medical FoundationCastro Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sam Chitsaz among 2,574 cardiovascular disease physician records in California
Sam Chitsaz, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 79% of them.
- NPI issued2012 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2007 · median 1999 among the 1,742 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Antioch → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Ashul Govil, M.D.Antioch, CA 945311316189053
- Kamran Hassan, M.DAntioch, CA 945311659667178
- Grace LiuAntioch, CA 945311013379882
- Jeffrey Breneisen, MDFairfield, CA 945331629058615
- Gurinder Dhillon, MDFairfield, CA 945331669490454
- Milind Dhond, M. D.Fairfield, CA 945331972500676
- Cyrus Mancherje, M.D.Fairfield, CA 945331659398543
- Ho-Hin Choy, M.D.Fairfield, CA 945341083008262
Common questions
What is Sam Chitsaz, M.D.'s NPI number?
Sam Chitsaz, M.D.'s National Provider Identifier (NPI) is 1821364084, issued on Mar 31, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Sam Chitsaz, M.D. located?
The NPPES record lists a practice address at 4053 Lone Tree Way Ste 200, Antioch, CA, 94531. Phone: (925) 776-7725. Providers update this record themselves, so call before visiting.
How can I verify Sam Chitsaz, M.D.'s license?
NPPES lists California license number A153515, 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 Sam Chitsaz, M.D. prescribe under Medicare Part D?
In 2024, Sam Chitsaz, M.D. had 1,431 Medicare Part D claims for 282 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.