Gregory Wang, MD
NPI 1871778068 · Nephrology Physician · Fairfax, VA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Wang, MD is a Nephrology Physician provider in Fairfax, VA (NPI 1871778068).
Provider details
- NPI number
- 1871778068
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101242854 (VA)
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
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
2,703 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,014 | $79 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 583 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 443 | $95 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 202 | $335 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 143 | $175 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 156 | 42 |
| Furosemide | 138 | 44 |
| Amlodipine Besylate | 116 | 31 |
| Calcitriol | 78 | 29 |
| Atorvastatin Calcium | 55 | 16 |
| Prednisone | 55 | 19 |
| Allopurinol | 51 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$341 across 13 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
- 2008-01-07
- Last updated
- 2016-08-11
Frequently asked questions
- What is Gregory Wang's NPI number?
- Gregory Wang's National Provider Identifier (NPI) is 1871778068, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Wang's specialty?
- Gregory Wang is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Wang located?
- Gregory Wang's practice location on file with NPPES is 13135 Lee Jackson Memorial Hwy, Fairfax, VA 22033-1907.
- What is Gregory Wang's phone number?
- The practice phone number listed in the NPPES registry for Gregory Wang is (703) 961-0488.
- Does Gregory Wang accept Medicare?
- Gregory Wang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Wang's NPI active?
- Yes — Gregory Wang's NPI (1871778068) is active in the NPPES registry as of the last update on 2016-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.