Samuel Chang, MD
Family Medicine Physician · Northridge, CA
Samuel Chang, MD is a family medicine physician with a practice address in Northridge, California, and NPI 1952921827, issued on Apr 21, 2020. Check the license (California A182920, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samuel Chang
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A182920 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18460 Roscoe Blvd FL 2, Northridge, CA 91325
- Phone
- (818) 885-5480
- Enumerated
- Apr 21, 2020
- Record last updated
- Oct 8, 2025
- Fax
- (818) 993-1917
- Medicare enrollment
- Enrolled (PECOS I20230815001308); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 18460 Roscoe Blvd FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Pamela Davis, MDFamily Medicine Physician1386652196
- Eric Gama, M.D.Family Medicine Physician1154862373
- Mandeep Ghuman, MDFamily Medicine Physician1306058151
Verify Samuel Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A182920Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
96 Medicare Part D claims for 38 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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
- Dignity Health Medical FoundationNorthridge, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel Chang among 17,133 family medicine physician records in California
Samuel Chang, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 88% of them.
- NPI issued2020 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
55 family medicine physician records list a practice address in Northridge
They are 55 of the 2,598 NPPES records with a practice address in Northridge, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Northridge → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kathy Cairo, M.D.Northridge, CA 913251699878900
- Fausto Cordero, MDNorthridge, CA 913251124052477
- Pamela Davis, MDNorthridge, CA 913251386652196
- Elizabeth Eddy-Bertrand, MDNorthridge, CA 913251669573218
- Susan Hopkins, MDNorthridge, CA 913251700987369
- Viviana Ionescu-Tiba, MDNorthridge, CA 913251588737720
- Christopher Kuhlman, MDNorthridge, CA 913251629170006
- Hwe-Seung Lee, MDNorthridge, CA 913251083717391
Common questions
What is Samuel Chang, MD's NPI number?
Samuel Chang, MD's National Provider Identifier (NPI) is 1952921827, issued on Apr 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Chang, MD located?
The NPPES record lists a practice address at 18460 Roscoe Blvd FL 2, Northridge, CA, 91325. Phone: (818) 885-5480. Providers update this record themselves, so call before visiting.
How can I verify Samuel Chang, MD's license?
NPPES lists California license number A182920, 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 Samuel Chang, MD prescribe under Medicare Part D?
In 2024, Samuel Chang, MD had 96 Medicare Part D claims for 38 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.