Don Chang, M.D.
NPI 1619101805 · Nephrology Physician · Roseville, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Don Chang, M.D. is a Nephrology Physician provider in Roseville, CA (NPI 1619101805).
Provider details
- NPI number
- 1619101805
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A107520 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,283 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 624 | $105 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 395 | $120 |
| Follow-Up Inpatient Consultation, Complex, Physicians Typically Spend 35 Minutes Communicating With the Patient Via TelehealthG0408 | 77 | $103 |
| Critical Care, First 30-74 Minutes99291 | 68 | $213 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 67 | $228 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 193 | 67 |
| Amlodipine Besylate | 162 | 69 |
| Carvedilol | 139 | 56 |
| Lisinopril | 118 | 42 |
| Furosemide | 113 | 37 |
| Losartan Potassium | 102 | 39 |
| Hydrochlorothiazide | 70 | 23 |
| Spironolactone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$252 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-05-04
- Last updated
- 2013-08-26
Frequently asked questions
- What is Don Chang's NPI number?
- Don Chang's National Provider Identifier (NPI) is 1619101805, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Don Chang's specialty?
- Don Chang is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Don Chang located?
- Don Chang's practice location on file with NPPES is 151 N Sunrise Ave, Roseville, CA 95661-2924.
- What is Don Chang's phone number?
- The practice phone number listed in the NPPES registry for Don Chang is (916) 789-1505.
- Does Don Chang accept Medicare?
- Don Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Don Chang's NPI active?
- Yes — Don Chang's NPI (1619101805) is active in the NPPES registry as of the last update on 2013-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.