DR. CALVIN DARNELL JR. LYONS (M.D.) – Colon & Rectal Surgery Physician, NPI 1811149404
Colon & Rectal Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
18 COLORECTAL SURGERY (PROCTOLOGY) in NV
Provider Addresses for DR. CALVIN DARNELL JR. LYONS (M.D.)
2310 Corporate Cir Ste 200
Henderson, NV 890747729
Phone: (702) 735-8000
Fax: (702) 563-2937
Type: Location
2121 E FLAMINGO RD STE 200
LAS VEGAS, NV 891195124
Phone: (702) 685-5668
Fax: (702) 685-0599
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 21 Open Payments records for all available years, with a total value of $2,463.
Total Amount is formed as General ($2,463) + Research ($0) + Ownership ($0) = $2,463.
Last reported payment date: 2024-11-14 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($1,899).
Total Amount
$2,463
General + Research + Ownership
Payments
21
Total payment records
General Amount
$2,463
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-14
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $1,899 |
| Acera Surgical, Inc. | $166 |
| ABBVIE INC. | $125 |
| Braintree Laboratories, Inc. | $82 |
| COLOPLAST CORP | $60 |
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: 2018-02-27
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 |
|---|---|---|---|---|
| I20170713003054 | I | General Surgery | TX | TBD |
| I20180227002057 | I | Colorectal Surgery (Proctology) | NV | 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 | 130 | 86 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 103 | 103 | $0 |
| 45300 | Diagnostic exam of rectum and lower large bowel using an endoscope | 87 | 83 | $0 |
| 46600 | Diagnostic exam of anus using an endoscope | 51 | 40 | $0 |
| 15860 | Injection of agent into vein to assess blood flow of skin graft or flap | 28 | 28 | $0 |
Insurance plans in this area (ZIP 89074)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| U R O L O G Y | NV | |
| Physician Assistant | NV | |
| Physician Assistant | NV | |
| Physician Assistant | CA | |
| U R O L O G Y | NV | |
| - | NV | |
| U R O L O G Y | NV | |
| - | NV | |
| U R O L O G Y | NV | |
| U R O L O G Y | FL |
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