ALEXANDER CHENG-KANG GUO (M.D.) – Diagnostic Radiology Physician, NPI 1083703201
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,800 DIAGNOSTIC RADIOLOGY in CA
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Provider Addresses for ALEXANDER CHENG-KANG GUO (M.D.)
Main Street, Placerville, El Dorado County, California, 95667, United States
PLACERVILLE, CA 95667
Phone: (530) 626-1166
Fax: (530) 626-3826
Type: Mailing
Marshall Medical Center, 1100, Marshall Way, Placerville, El Dorado County, California, 95667, United States
PLACERVILLE, CA 95667
Phone: (530) 626-1166
Fax: (530) 626-3826
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $87.
Total Amount is formed as General ($87) + Research ($0) + Ownership ($0) = $87.
Last reported payment date: 2023-09-07 • Largest payer in this snapshot: Cook Medical LLC ($87).
Total Amount
$87
General + Research + Ownership
Payments
1
Total payment records
General Amount
$87
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Cook Medical LLC | $87 |
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: 2006-02-21
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 |
|---|---|---|---|---|
| I20060221000519 | I | Diagnostic Radiology | CA | 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 |
|---|---|---|---|---|
| 77063 | Screening 3d breast mammography | 416 | 416 | $0 |
| 77067 | Screening mammography | 416 | 416 | $0 |
| 71045 | X-ray of chest, 1 view | 385 | 298 | $0 |
| 70450 | Ct scan head or brain without contrast | 290 | 269 | $0 |
| 77080 | Dxa bone density measurement of hip, pelvis, spine | 247 | 247 | $0 |
Insurance plans in this area (ZIP 95667)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | CA | 71010 | X-ray of chest, 1 view, front | 834 | 464 |
| DIAGNOSTIC RADIOLOGY | CA | 71250 | CT scan chest | 64 | 61 |
| DIAGNOSTIC RADIOLOGY | CA | 73110 | X-ray of wrist, minimum of 3 views | 65 | 61 |
| DIAGNOSTIC RADIOLOGY | CA | 73140 | X-ray of fingers, minimum of 2 views | 24 | 21 |
| DIAGNOSTIC RADIOLOGY | CA | 73562 | X-ray of knee, 3 views | 62 | 45 |
| DIAGNOSTIC RADIOLOGY | CA | 73630 | X-ray of foot, minimum of 3 views | 132 | 117 |
| DIAGNOSTIC RADIOLOGY | CA | 74177 | CT scan of abdomen and pelvis with contrast | 282 | 269 |
| DIAGNOSTIC RADIOLOGY | CA | 76942 | Ultrasonic guidance imaging supervision and interpretation for insertion of needle | 23 | 23 |
| DIAGNOSTIC RADIOLOGY | CA | 77012 | Radiological supervision and interpretation of CT guidance for needle insertion | 22 | 22 |
| DIAGNOSTIC RADIOLOGY | CA | 78815 | Nuclear medicine study with CT imaging skull base to mid-thigh | 88 | 80 |
| DIAGNOSTIC RADIOLOGY | CA | 93922 | Ultrasound study of arteries of both arms and legs | 67 | 66 |
| DIAGNOSTIC RADIOLOGY | CA | 93926 | Ultrasound study of arteries and arterial grafts of one leg or limited | 12 | 11 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | MO | |
| Diagnostic Radiology, Interventional Radiology, Nuclear Medicine | CA | |
| Diagnostic Radiology | NY | |
| Diagnostic Radiology | CA |
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