DR. MARGARET CHAFFIN SIMAN (M.D.) – Family Medicine Physician, NPI 1225006729
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,174 FAMILY PRACTICE in VA
Provider Addresses for DR. MARGARET CHAFFIN SIMAN (M.D.)
42 LAMBERT ST STE 422
STAUNTON, VA 244012421
Phone: (540) 213-0311
Fax: (540) 213-0122
Type: Mailing
1234, Middlebrook Avenue, City of Staunton, Virginia, 24401, United States
SUITE E
STAUNTON, VA 244014545
Phone: (540) 885-0010
Fax: (540) 213-0122
Type: Location
259, Shirey Road, Staunton, Augusta County, Virginia, 24401, United States
STAUNTON, VA 244015911
Phone: (540) 280-3000
Fax: (540) 213-0122
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 57 Open Payments records for all available years, with a total value of $972.
Total Amount is formed as General ($972) + Research ($0) + Ownership ($0) = $972.
Last reported payment date: 2024-11-07 • Largest payer in this snapshot: PFIZER INC. ($304).
Total Amount
$972
General + Research + Ownership
Payments
57
Total payment records
General Amount
$972
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $304 |
| Lilly USA, LLC | $195 |
| Otsuka America Pharmaceutical, Inc. | $123 |
| ABBVIE INC. | $77 |
| Novartis Pharmaceuticals Corporation | $47 |
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: 2005-09-06
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 |
|---|---|---|---|---|
| I20050906000493 | I | Family Practice | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 65 | 44 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 63 | 44 | $0 |
| G0008 | Administration of influenza virus vaccine | 36 | 36 | $0 |
| 90694 | Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 35 | 35 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 22 | 18 | $0 |
Insurance plans in this area (ZIP 24401)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | VA | 83036 | Hemoglobin A1C level | 20 | 20 |
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