DR. ELENA F FLAGG (M.D.) – Rheumatology Physician, NPI 1174580310
Rheumatology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
177 RHEUMATOLOGY in VA
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Provider Addresses for DR. ELENA F FLAGG (M.D.)
Ivy Rehab for Kids, 457, McLaws Circle, Williamsburg, James City County, Virginia, 23185, United States
WILLIAMSBURG, VA 231856337
Phone: (757) 220-8579
Fax: (757) 345-0936
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 39 Open Payments records for all available years, with a total value of $682.
Total Amount is formed as General ($682) + Research ($0) + Ownership ($0) = $682.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: PFIZER INC. ($176).
Total Amount
$682
General + Research + Ownership
Payments
39
Total payment records
General Amount
$682
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $176 |
| Amgen Inc. | $135 |
| Janssen Biotech, Inc. | $88 |
| AstraZeneca Pharmaceuticals LP | $56 |
| UCB, Inc. | $53 |
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: 2009-11-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20091111000742 | I | Rheumatology | 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 |
|---|---|---|---|---|
| J0717 | Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) | 94,800 | 31 | $0 |
| J3262 | Injection, tocilizumab, 1 mg | 85,920 | 21 | $0 |
| J0129 | Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) | 34,425 | 50 | $0 |
| J1745 | Injection, infliximab, excludes biosimilar, 10 mg | 23,381 | 66 | $0 |
| J0897 | Injection, denosumab, 1 mg | 15,780 | 166 | $0 |
Insurance plans in this area (ZIP 23185)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| RHEUMATOLOGY | VA | 20610 | Aspiration and/or injection of large joint or joint capsule | 357 | 193 |
| RHEUMATOLOGY | VA | 90670 | Pneumococcal vaccine for injection into muscle | 42 | 42 |
| RHEUMATOLOGY | VA | 96375 | Injection of different drug or substance into a vein for therapy, diagnosis, or prevention | 131 | 28 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | VA | |
| Rheumatology, Internal Medicine | VA | |
| Nurse Practitioner | VA | |
| Nurse Practitioner | VA |
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