DR. NASSAR FARID KHAN (M.D.) – Hematology (Internal Medicine) Physician, NPI 1396708608
Hematology (Internal Medicine) Physician
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NPPES metrics only — not quality of care.
80 HEMATOLOGY in VA
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Provider Addresses for DR. NASSAR FARID KHAN (M.D.)
2826, Old Lee Highway, Merrifield, Fairfax (city), Virginia, 22031, United States
SUITE 110
FAIRFAX, VA 22031
Phone: (703) 560-8444
Type: Location
8110 GATEHOUSE RD STE 300W
FALLS CHURCH, VA 220421253
Phone: (703) 391-4395
Type: Mailing
2826 Old Lee Hwy
Suite 110
Fairfax, VA 220314323
Phone: (703) 560-8444
Type: Location
8501 Arlington Blvd Ste 340
Fairfax, VA 220314625
Phone: (703) 207-0733
Fax: (703) 207-0736
Type: Location
4320 Seminary Rd
Alexandria, VA 223041535
Phone: (703) 504-3000
Fax: (703) 504-3388
Type: Location
1800 N Beauregard St Ste 350
Alexandria, VA 223111725
Phone: (703) 933-8125
Fax: (703) 933-8216
Type: Location
1800 N Beauregard St Ste 210
Alexandria, VA 223111735
Phone: (703) 933-8125
Fax: (703) 933-8216
Type: Location
3600 Joseph Siewick Dr
Fairfax, VA 220331709
Phone: (703) 391-3600
Fax: (703) 391-3414
Type: Location
44055 Riverside Pkwy Ste 108
Leesburg, VA 201765179
Phone: (703) 858-8600
Fax: (703) 858-8603
Type: Location
3300 Gallows Rd
Falls Church, VA 220423307
Phone: (703) 776-4001
Fax: (703) 776-7113
Type: Location
8081 Innovation Park Dr
Fairfax, VA 220314867
Phone: (571) 472-4724
Fax: (571) 472-0241
Type: Location
3580 JOSEPH SIEWICK DR STE 403
FAIRFAX, VA 220331764
Phone: (703) 391-4395
Fax: (703) 391-4394
Type: Location
PO BOX 37174
BALTIMORE, MD 212973174
Phone: (571) 423-5699
Fax: (571) 423-5698
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $20.
Total Amount is formed as General ($20) + Research ($0) + Ownership ($0) = $20.
Last reported payment date: 2024-02-13 • Largest payer in this snapshot: ABIOMED ($20).
Total Amount
$20
General + Research + Ownership
Payments
1
Total payment records
General Amount
$20
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-02-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABIOMED | $20 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2016-06-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20051012000735 | I | Hematology | DC | TBD |
| I20160607000317 | I | Hematology | VA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 514 | 198 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 49 | 43 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 43 | 26 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 40 | 40 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 16 | 14 | $0 |
Insurance plans in this area (ZIP 22031)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | VA | 96415 | Infusion of chemotherapy into a vein | 104 | 13 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Nephrology | MD | |
| Pulmonary Disease | DC | |
| Internal Medicine | CT | |
| Physician Assistant | MD | |
| Internal Medicine, Critical Care (Intensivists) | MD | |
| H E M A T O L O G Y/ O N C O L O G Y | DC | |
| Internal Medicine, Geriatric Medicine, Infectious Disease | PA | |
| Critical Care (Intensivists), Pulmonary Disease, Critical Care (Intensivists), Internal Medicine, Pulmonary Disease, Sleep Medicine | DC | |
| Nurse Practitioner | MD | |
| Pulmonary Disease, Internal Medicine, Internal Medicine, Critical Care (Intensivists), Pulmonary Disease, Sleep Medicine | MD |
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