DOUGLAS D YUN (MD) – Cardiovascular Disease Physician, NPI 1487611679
Cardiovascular Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,010 CARDIOVASCULAR DISEASE (CARDIOLOGY) in CA
Loading map...
Provider Addresses for DOUGLAS D YUN (MD)
55, East California Boulevard, Madison Heights, Pasadena, Los Angeles County, California, 91105, United States
3RD FLOOR
PASADENA, CA 911053944
Phone: (626) 793-1227
Fax: (626) 793-3794
Type: Mailing
West Huntington Drive, Arcadia, Los Angeles County, California, 91006, United States
SUITE 500
ARCADIA, CA 91007
Phone: (626) 294-4888
Fax: (626) 294-4880
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 70 Open Payments records for all available years, with a total value of $1,989.
Total Amount is formed as General ($1,989) + Research ($0) + Ownership ($0) = $1,989.
Last reported payment date: 2024-11-15 • Largest payer in this snapshot: Boehringer Ingelheim Pharmaceuticals, Inc. ($224).
Total Amount
$1,989
General + Research + Ownership
Payments
70
Total payment records
General Amount
$1,989
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-15
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: 2008-12-11
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 |
|---|---|---|---|---|
| I20081211000159 | I | Cardiovascular Disease (Cardiology) | 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 | 850 | 280 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 732 | 291 | $0 |
| 99454 | Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 487 | 79 | $0 |
| 99457 | Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 458 | 75 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 429 | 169 | $0 |
Insurance plans in this area (ZIP 91105)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 92928 | Catheter insertion of stents in major coronary artery or branch, accessed through the skin | 13 | 12 |
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 915 | 737 |
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 93280 | Evaluation, testing, and programming adjustment of permanent dual lead pacemaker system with physician analysis, review, and report | 16 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology) | CA | |
| Cardiovascular Disease (Cardiology) | CA | |
| Cardiovascular Disease (Cardiology) | CA | |
| Cardiovascular Disease (Cardiology) | CA | |
| - | CA | |
| Cardiovascular Disease (Cardiology) | CA |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.