Mei-Hwa Firestone, MD
NPI 1699909093 · Hematology & Oncology Physician · Leesburg, VA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mei-Hwa Firestone, MD is a Hematology & Oncology Physician provider in Leesburg, VA (NPI 1699909093).
Provider details
- NPI number
- 1699909093
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 0101251718 (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
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
2,765 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 | 612 | $127 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 589 | $15 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 478 | $8 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 293 | $128 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 204 | $14 |
| Administration of Additional New Drug Or Substance Into Vein, 1 Hour Or Less96417 | 154 |
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 |
|---|---|---|
| Anastrozole | 305 | 84 |
| Apixabanbrand: Eliquis | 78 | 17 |
| Letrozole | 42 | — |
| Palbociclibbrand: Ibrance | 35 | — |
| Ondansetron Hcl | 33 | 12 |
| Rivaroxabanbrand: Xarelto | 29 | — |
| Levothyroxine Sodium | 29 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 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
- 2009-05-13
- Last updated
- 2023-09-29
- Certified
- 2023-09-29
Frequently asked questions
- What is Mei-Hwa Firestone's NPI number?
- Mei-Hwa Firestone's National Provider Identifier (NPI) is 1699909093, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mei-Hwa Firestone's specialty?
- Mei-Hwa Firestone is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mei-Hwa Firestone located?
- Mei-Hwa Firestone's practice location on file with NPPES is 19500 Sandridge Way, Suite 450, Leesburg, VA 20176-3467.
- What is Mei-Hwa Firestone's phone number?
- The practice phone number listed in the NPPES registry for Mei-Hwa Firestone is (703) 656-9805.
- Does Mei-Hwa Firestone accept Medicare?
- Mei-Hwa Firestone is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mei-Hwa Firestone's NPI active?
- Yes — Mei-Hwa Firestone's NPI (1699909093) is active in the NPPES registry as of the last update on 2023-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.