Nassar Khan, M.D.
NPI 1396708608 · Hematology (Internal Medicine) Physician · Fairfax, VA
Enrolled with Medicare as Practitioner - Hematology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nassar Khan, M.D. is a Hematology (Internal Medicine) Physician provider in Fairfax, VA (NPI 1396708608).
Provider details
- NPI number
- 1396708608
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101053383 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
10 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Spironolactone | 16 |
| Rivaroxabanbrand: Xarelto | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
Additional practice locations (9)
- 1800 N Beauregard St Ste 350Alexandria, VA 22311-1725Phone: (703) 933-8125Fax: (703) 933-8216
- 1800 N Beauregard St Ste 210Alexandria, VA 22311-1735Phone: (703) 933-8125Fax: (703) 933-8216
- 4320 Seminary RdAlexandria, VA 22304-1535Phone: (703) 504-3000Fax: (703) 504-3388
- 3600 Joseph Siewick DrFairfax, VA 22033-1709Phone: (703) 391-3600Fax: (703) 391-3414
- 2826 Old Lee HwySuite 110Fairfax, VA 22031-4323Phone: (703) 560-8444
- 8501 Arlington Blvd Ste 340Fairfax, VA 22031-4625Phone: (703) 207-0733Fax: (703) 207-0736
- 8081 Innovation Park DrFairfax, VA 22031-4867Phone: (571) 472-4724Fax: (571) 472-0241
- 3300 Gallows RdFalls Church, VA 22042-3307Phone: (703) 776-4001
Registry dates
- Enumerated
- 2006-04-08
- Last updated
- 2021-12-14
- Certified
- 2021-12-14
Frequently asked questions
- What is Nassar Khan's NPI number?
- Nassar Khan's National Provider Identifier (NPI) is 1396708608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nassar Khan's specialty?
- Nassar Khan is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Nassar Khan located?
- Nassar Khan's practice location on file with NPPES is 3580 Joseph Siewick Dr Ste 403, Fairfax, VA 22033-1764.
- What is Nassar Khan's phone number?
- The practice phone number listed in the NPPES registry for Nassar Khan is (703) 391-4395.
- Does Nassar Khan accept Medicare?
- Nassar Khan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nassar Khan's NPI active?
- Yes — Nassar Khan's NPI (1396708608) is active in the NPPES registry as of the last update on 2021-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.