WILLIAM LEE ELZI (MD) – Internal Medicine Physician, NPI 1164500245
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,994 INTERNAL MEDICINE in CO
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Provider Addresses for WILLIAM LEE ELZI (MD)
3655, McKinley Avenue, Winchester, Clark County, Nevada, 89121, United States
LAS VEGAS, NV 891214432
Phone: (720) 938-5022
Fax: (303) 215-9263
Type: Mailing
405 COLLIER RANCH RD
STEPHENVILLE, TX 764011988
Phone: (702) 453-3799
Fax: (702) 453-5741
Type: Mailing
St. Thomas More Hospital, 1338, Phay Avenue, Cañon City, Fremont County, Colorado, 81212, United States
CANON CITY, CO 812122302
Phone: (720) 938-5022
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.
This can happen when there are no reportable CMS Open Payments records.
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: 2024-11-22
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 |
|---|---|---|---|---|
| I20110718000706 | I | Internal Medicine | CO | TBD |
| I20241023002812 | I | Internal Medicine | MI | TBD |
| I20241122003393 | I | Internal Medicine | TX | 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 | 295 | 153 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 197 | 192 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 195 | 186 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 132 | 78 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 16 | 13 | $0 |
Insurance plans in this area (ZIP 89121)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CO | 85610 | Blood test, clotting time | 46 | 29 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | NM | |
| Internal Medicine, Emergency Medicine | TX | |
| Physician Assistant | TX | |
| Internal Medicine | TX | |
| Internal Medicine | NC | |
| Internal Medicine | PA | |
| Family Practice, Internal Medicine | TX | |
| Nephrology, Emergency Medicine, Internal Medicine | TX | |
| Nephrology, Internal Medicine | OK | |
| Internal Medicine | NM |
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