NIKOLAOS DIAKOS (M.D.) – Interventional Cardiology Physician, NPI 1659791507
Interventional Cardiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
62 INTERVENTIONAL CARDIOLOGY in UT
Provider Addresses for NIKOLAOS DIAKOS (M.D.)
30 North 1900 East, 4C116 SOM
Salt Lake City, UT 84132
Phone: (801) 581-7899
Type: Location
800 Washington St
Boston, MA 021111552
Phone: (617) 636-8137
Type: Location
1005E THIRD AVENUE
SLC, UT 84103
Phone: (801) 819-2083
Type: Mailing
800 WASHINGTON ST
BOSTON, MA 021111552
Phone: (617) 636-8137
Type: Location
6624 FANNIN ST
SUITE 2600
HOUSTON, TX 770302338
Phone: (713) 790-9401
Fax: (713) 790-0353
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 122 Open Payments records for all available years, with a total value of $2,793.
Total Amount is formed as General ($2,793) + Research ($0) + Ownership ($0) = $2,793.
Last reported payment date: 2024-12-27 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($342).
Total Amount
$2,793
General + Research + Ownership
Payments
122
Total payment records
General Amount
$2,793
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novartis Pharmaceuticals Corporation | $342 |
| CVRx, Inc. | $235 |
| Abbott Laboratories | $205 |
| PFIZER INC. | $148 |
| iRhythm Technologies, Inc. | $133 |
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: 2022-11-08
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 |
|---|---|---|---|---|
| I20221108001396 | I | Interventional Cardiology | TX | 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 | 133 | 50 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 121 | 50 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 84 | 58 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 62 | 45 | $0 |
| 93750 | Evaluation of lower heart chamber assist device | 48 | 14 | $0 |
Insurance plans in this area (ZIP 84132)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| Clinical Psychologist | TX | |
| Diagnostic Radiology | VA | |
| U R O L O G Y | TX | |
| - | TX | |
| - | TX | |
| General Surgery | AZ | |
| H E M A T O L O G Y/ O N C O L O G Y | TX | |
| Hematology, Internal Medicine | WA | |
| O P H T H A L M O L O G Y | TX |
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