DR. REX CHANG MANAYAN (M.D.) – Vascular Surgery Physician, NPI 1649278599
Vascular Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
103 VASCULAR SURGERY in CO
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Provider Addresses for DR. REX CHANG MANAYAN (M.D.)
3810 NORTHDALE BLVD STE 150
TAMPA, FL 336241871
Phone: (813) 961-1331
Fax: (888) 850-8316
Type: Mailing
71780 SAN JACINTO DR BLDG I
RANCHO MIRAGE, CA 922705516
Phone: (760) 568-3461
Fax: (760) 423-6273
Type: Mailing
South Holly Circle, Centennial, Arapahoe County, Colorado, 801111, United States
CENTENNIAL, CO 801126267
Phone: (800) 991-6117
Fax: (888) 812-8191
Type: Location
3820 NORTHDALE BLVD STE 201
TAMPA, FL 336241893
Phone: (813) 961-1331
Fax: (888) 850-8316
Type: Mailing
13555 W MCDOWELL RD STE 210
GOODYEAR, AZ 853952628
Phone: (800) 991-6117
Fax: (888) 812-8191
Type: Location
3333 CONCOURS STE 100
ONTARIO, CA 917644875
Phone: (909) 481-3242
Fax: (909) 481-3243
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 17 Open Payments records for all available years, with a total value of $439.
Total Amount is formed as General ($439) + Research ($0) + Ownership ($0) = $439.
Last reported payment date: 2024-06-24 • Largest payer in this snapshot: Tactile Systems Technology Inc ($207).
Total Amount
$439
General + Research + Ownership
Payments
17
Total payment records
General Amount
$439
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-24
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2026-01-20
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 |
|---|---|---|---|---|
| I20201118001156 | I | General Surgery | UT | TBD |
| I20220809001147 | I | General Surgery | AZ | TBD |
| I20260120001075 | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 580 | 141 | $0 |
| 93971 | Ultrasound study of one arm or leg veins with compression and maneuvers | 562 | 124 | $0 |
| 36482 | Chemical destruction of first incompetent vein of arm or leg using imaging guidance | 439 | 109 | $0 |
| 93970 | Ultrasound study of arm or leg veins with compression and maneuvers | 230 | 148 | $0 |
| 36465 | Injection of chemical agent into single incompetent vein of leg using ultrasound guidance | 170 | 82 | $0 |
Insurance plans in this area (ZIP 33624)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GENERAL SURGERY | TX | 45378 | Diagnostic examination of large bowel using an endoscope | 11 | 11 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Vascular Surgery, Cardiovascular Disease (Cardiology) | CA | |
| Vascular Surgery | MO | |
| Vascular Surgery | CA | |
| Vascular Surgery, General Surgery | CA |
Reviews
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