YIEN CHIONG (M.D) – Endocrinology, Diabetes & Metabolism Physician, NPI 1205068012
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
93 ENDOCRINOLOGY in OR
Provider Addresses for YIEN CHIONG (M.D)
PO BOX 1648
EUGENE, OR 974401648
Phone:
Type: Mailing
1007 HARLOW RD STE 210
SPRINGFIELD, OR 974777126
Phone: (541) 741-0387
Type: Location
600, Country Club Road, Eugene, Lane County, Oregon, 97401, United States
EUGENE, OR 974012240
Phone: (541) 345-0600
Fax: (541) 746-0113
Type: Location
647, Woodcrest Drive, Springfield, Lane County, Oregon, 97477, United States
SPRINGFIELD, OR 974773644
Phone: (317) 966-8019
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2019-08-20
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 |
|---|---|---|---|---|
| I20190820001121 | I | Endocrinology | OR | 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 |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 251 | 148 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 222 | 159 | $0 |
| 83036 | Hemoglobin a1c level | 139 | 82 | $0 |
| 84443 | Blood test, thyroid stimulating hormone (tsh) | 107 | 78 | $0 |
| 95251 | Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 81 | 55 | $0 |
Insurance plans in this area (ZIP 97440)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ENDOCRINOLOGY | CO | 83036 | Hemoglobin A1C level | 304 | 173 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OR | |
| - | OR | |
| Nurse Practitioner | WA | |
| - | OR | |
| Nurse Practitioner | OR | |
| - | OR | |
| - | OR | |
| - | OR | |
| - | OR | |
| - | OR |
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