MRS. KATHRYN MARIE CAPPELL (MD) – Hematology (Internal Medicine) Physician, NPI 1366785255
Hematology (Internal Medicine) Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MRS. KATHRYN MARIE CAPPELL (MD)
4320 Seminary Rd
Alexandria, VA 223041535
Phone: (703) 504-3000
Fax: (703) 504-3388
Type: Location
3300 Gallows Rd
Falls Church, VA 220423307
Phone: (703) 776-4001
Fax: (703) 776-7113
Type: Location
300 PASTEUR DR
LANE 154
STANFORD, CA 943055133
Phone: (650) 723-6661
Type: Mailing
PO BOX 37174
BALTIMORE, MD 212973174
Phone: (571) 423-5699
Fax: (571) 423-5698
Type: Mailing
300 Pasteur Dr
Lane 154
Stanford, CA 943055133
Phone: (650) 723-6661
Type: Location
44045 Riverside Pkwy
Leesburg, VA 201765101
Phone: (703) 858-6000
Fax: (703) 858-6900
Type: Location
3600 Joseph Siewick Dr
Fairfax, VA 220331709
Phone: (703) 391-3600
Fax: (703) 391-3414
Type: Location
8081 INNOVATION PARK DR
FAIRFAX, VA 220314867
Phone: (571) 472-4724
Fax: (571) 472-0241
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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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: 2021-09-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20180111000562 | I | Hematology/Oncology | DC | TBD |
| I20180116000299 | I | Hospitalist | MD | TBD |
| I20210901001893 | I | Hematology/Oncology | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 23 | 13 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 17 | 11 | $0 |
Insurance plans in this area (ZIP 22304)
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