JOHN H SUN (MD) – Surgery Physician, NPI 1003865023
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
28 COLORECTAL SURGERY (PROCTOLOGY) in CO
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Provider Addresses for JOHN H SUN (MD)
Directions Parker Endocrinology, 9397, Crown Crest Boulevard, Parker, Douglas County, Colorado, 80138, United States
SUITE 201
PARKER, CO 801388575
Phone: (303) 320-0699
Fax: (303) 320-0897
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 4 Open Payments records for all available years, with a total value of $183.
Total Amount is formed as General ($183) + Research ($0) + Ownership ($0) = $183.
Last reported payment date: 2023-04-25 • Largest payer in this snapshot: Boston Scientific Corporation ($169).
Total Amount
$183
General + Research + Ownership
Payments
4
Total payment records
General Amount
$183
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-04-25
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $169 |
| Medtronic, Inc. | $14 |
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: 2005-01-20
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 |
|---|---|---|---|---|
| I20050120000984 | I | Colorectal Surgery (Proctology) | CO | 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 |
|---|---|---|---|---|
| 45380 | Biopsy of large bowel using a flexible endoscope | 132 | 132 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 82 | 82 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 44 | 40 | $0 |
| 46600 | Diagnostic exam of anus using an endoscope | 40 | 39 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 31 | 31 | $0 |
Insurance plans in this area (ZIP 80138)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CO | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CO | |
| Nurse Practitioner | CO | |
| Internal Medicine | CO | |
| Physician Assistant | CO | |
| Family Practice | CO | |
| Physician Assistant | CO | |
| - | CO | |
| Internal Medicine | CO | |
| N E U R O L O G Y | CO |
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