DR. SAMUEL CHANG MD
NPI 1952921827
Family Medicine in Northridge, CA

Q: What is Samuel Chang's NPI number?

The NPI number for Samuel Chang is 1952921827. It was assigned to this individual provider in the NPPES registry on April 21, 2020.

Q: What is Samuel Chang's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Samuel Chang was last updated on October 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 21, 2020PECOS EnrolledAccepts Medicare Assignment

18460 ROSCOE BLVD FL 2, NORTHRIDGE, CA 91325(818) 885-5480(818) 993-1917 Get Directions Write a Review

NPPES record last updated: October 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 8, 2025, Aug 31, 2023, Apr 21, 2020 (3 updates tracked since 2020).

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About Dr. Samuel Chang Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SAMUEL CHANG MD (NPI 1952921827) is an individual family medicine provider in Northridge, California, licensed in California (A182920) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2020).

NPPES Registry Identity

NPI1952921827

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. SAMUEL CHANGCredential: MD

Location Address18460 ROSCOE BLVD FL 2Northridge, CA 91325-4107

Mailing Address3400 Data DrRancho Cordova, CA 95670-7956

Phone(818) 885-5480

Fax(818) 993-1917

Sole ProprietorNo

Medical School CMSBoston University School Of MedicineGraduated 2020

Enumeration DateApril 21, 2020

Last NPPES UpdateOctober 8, 20253 updates tracked since enumeration

NPPES CertifiedOctober 8, 2025

✔ NPI 1952921827 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · A182920

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

18460 ROSCOE BLVD FL 2, Northridge, CA 91325

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Samuel Chang Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6507228145

PECOS Enrollment IDI20230815001308

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Samuel Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dignity Health Medical Foundation

0.1 mi

Multi-Specialty

18406 ROSCOE BLVD
Northridge, CA 91325

Reassigned Medicare billing, California enrollment
1,191 clinicians in this Medicare group

NPI 1508222647 (818) 885-5480

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

170 services68 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

151 services47 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

53 services51 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

52 services51 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91325 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. SHERYL ROSENBERG THOUIN R.D., M.P.H., C.D.E

Dietitian, Registered