Di Zhao, M.D
NPI 1922281617 · Nephrology Physician · Tacoma, WA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Di Zhao, M.D is a Nephrology Physician provider in Tacoma, WA (NPI 1922281617).
Provider details
- NPI number
- 1922281617
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- 0000000 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
1,489 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 | 327 | $101 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 278 | $115 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 230 | $75 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 206 | $293 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 99 | $163 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 185 | 55 |
| Amlodipine Besylate | 110 | 37 |
| Hydralazine Hcl | 91 | 32 |
| Dapagliflozin Propanediolbrand: Farxiga | 87 | 11 |
| Losartan Potassium | 84 | 31 |
| Furosemide | 82 | 22 |
| Sevelamer Carbonate | 81 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$37 across 2 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
- 2007-12-17
- Last updated
- 2015-10-19
Frequently asked questions
- What is Di Zhao's NPI number?
- Di Zhao's National Provider Identifier (NPI) is 1922281617, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Di Zhao's specialty?
- Di Zhao is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Di Zhao located?
- Di Zhao's practice location on file with NPPES is 1901 S Union Ave, Tacoma, WA 98405-1702.
- What is Di Zhao's phone number?
- The practice phone number listed in the NPPES registry for Di Zhao is (253) 627-5755.
- Does Di Zhao accept Medicare?
- Di Zhao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Di Zhao's NPI active?
- Yes — Di Zhao's NPI (1922281617) is active in the NPPES registry as of the last update on 2015-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.