DR. ALLAN NGUYEN (D.O) – Surgery Physician, NPI 1295288769
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
403 CRITICAL CARE (INTENSIVISTS) in CO
Provider Addresses for DR. ALLAN NGUYEN (D.O)
499 E HAMPDEN AVE
#380
ENGLEWOOD, CO 801132780
Phone: (303) 788-5300
Fax: (303) 847-0211
Type: Mailing
12827 W DORADO PL
LITTLETON, CO 801272164
Phone: (714) 478-3734
Type: Mailing
1400 PELHAM PKWY S
BRONX, NY 104611138
Phone: (718) 918-5591
Type: Location
9195 GRANT ST STE 220
THORNTON, CO 802294386
Phone: (720) 439-4278
Type: Mailing
9191 GRANT ST
THORNTON, CO 802294361
Phone: (720) 439-4278
Type: Location
601 E HAMPDEN AVE STE 200
ENGLEWOOD, CO 801132788
Phone: (303) 788-5300
Type: Mailing
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 $6,531.
Total Amount is formed as General ($6,531) + Research ($0) + Ownership ($0) = $6,531.
Last reported payment date: 2024-12-06 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($6,141).
Total Amount
$6,531
General + Research + Ownership
Payments
21
Total payment records
General Amount
$6,531
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $6,141 |
| Boston Scientific Corporation | $165 |
| Medtronic, Inc. | $143 |
| Aroa Biosurgery Incorporated | $50 |
| Celgene Corporation | $17 |
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: 2022-03-28
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 |
|---|---|---|---|---|
| I20220328000573 | I | General Surgery | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 52 | 40 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 19 | 18 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 18 | 16 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 80113)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | CO | |
| General Surgery | MN | |
| General Surgery | MS | |
| General Surgery | CO | |
| General Surgery | MN | |
| General Surgery | CO | |
| General Surgery | MS | |
| General Surgery | CO | |
| General Surgery | TX | |
| General Surgery | CO |
Reviews
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