TIEN NGUYEN (M.D) – Vascular Surgery Physician, NPI 1013923481
Vascular Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,317 GENERAL SURGERY in CA
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Provider Addresses for TIEN NGUYEN (M.D)
Centennial Plaza, Civic Center, Bakersfield, Kern County, California, United States
BAKERSFIELD, CA 933122011
Phone: (661) 588-1150
Fax: (661) 241-4052
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 48 Open Payments records for all available years, with a total value of $1,003.
Total Amount is formed as General ($1,003) + Research ($0) + Ownership ($0) = $1,003.
Last reported payment date: 2024-12-05 • Largest payer in this snapshot: Smith+Nephew, Inc. ($308).
Total Amount
$1,003
General + Research + Ownership
Payments
48
Total payment records
General Amount
$1,003
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Smith+Nephew, Inc. | $308 |
| Silk Road Medical, Inc. | $165 |
| LeMaitre Vascular, Inc. | $162 |
| Artivion, Inc. | $107 |
| Medtronic, Inc. | $73 |
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: 2011-08-22
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 |
|---|---|---|---|---|
| I20110822000232 | I | Vascular Surgery | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 527 | 286 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 173 | 173 | $0 |
| 99183 | Management of oxygen chamber therapy | 95 | 17 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 84 | 16 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 68 | 64 | $0 |
Insurance plans in this area (ZIP 93312)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Vascular Surgery | CA | |
| Vascular Surgery | NY | |
| Vascular Surgery | CA | |
| Vascular Surgery, General Surgery | CA |
Reviews
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