Valiant Tan, MD
NPI 1154326718 · Specialist · Chesapeake, VA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Valiant Tan, MD is a Specialist provider in Chesapeake, VA (NPI 1154326718).
Provider details
- NPI number
- 1154326718
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101058223 (VA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 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
12,825 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) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 3,425 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,327 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 1,149 | $10 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 709 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 429 | $123 |
| Ferritin (blood Protein) Level82728 | 414 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 69 | 22 |
| Oxycodone Hcl | 56 | 31 |
| Ondansetron Hcl | 54 | 33 |
| Lenalidomide | 51 | — |
| Hydroxyurea | 45 | 11 |
| Tamoxifen Citrate | 43 | 15 |
| Potassium Chloride | 39 | — |
| Apixabanbrand: Eliquis |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$770 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
- 2005-06-20
- Last updated
- 2011-04-14
Frequently asked questions
- What is Valiant Tan's NPI number?
- Valiant Tan's National Provider Identifier (NPI) is 1154326718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Valiant Tan's specialty?
- Valiant Tan is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Valiant Tan located?
- Valiant Tan's practice location on file with NPPES is 725 Volvo Pkwy, Chesapeake, VA 23320-1602.
- What is Valiant Tan's phone number?
- The practice phone number listed in the NPPES registry for Valiant Tan is (757) 549-4403.
- Does Valiant Tan accept Medicare?
- Valiant Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Valiant Tan's NPI active?
- Yes — Valiant Tan's NPI (1154326718) is active in the NPPES registry as of the last update on 2011-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.