JOHN Y PENG (MD) – Internal Medicine Physician, NPI 1669485447
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,058 INTERNAL MEDICINE in WA
Loading map...
Provider Addresses for JOHN Y PENG (MD)
Virginia Mason Hospital & Seattle Medical Center, 1100, 9th Avenue, Central Business District, First Hill, Seattle, King County, Washington, 98101, United States
SEATTLE, WA 981012756
Phone: (206) 515-5811
Type: Mailing
19116, 33rd Avenue West, Lynnwood, Snohomish County, Washington, 98036, United States
LYNNWOOD, WA 980364706
Phone: (425) 771-7500
Fax: (425) 712-7903
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $137.
Total Amount is formed as General ($137) + Research ($0) + Ownership ($0) = $137.
Last reported payment date: 2024-11-11 • Largest payer in this snapshot: Phathom Pharmaceuticals, Inc. ($121).
Total Amount
$137
General + Research + Ownership
Payments
2
Total payment records
General Amount
$137
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Phathom Pharmaceuticals, Inc. | $121 |
| Janssen Pharmaceuticals, Inc | $16 |
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: 2005-03-03
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 |
|---|---|---|---|---|
| I20050303000348 | I | Internal Medicine | WA | 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 | 459 | 308 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 323 | 260 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 214 | 214 | $0 |
| 99211 | Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 129 | 81 | $0 |
| 85610 | Blood test, clotting time | 105 | 58 | $0 |
Insurance plans in this area (ZIP 98101)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | MA | |
| Internal Medicine | VA | |
| Family Practice | GA | |
| Orthopedic Surgery | IL | |
| - | NC | |
| - | TX | |
| Internal Medicine | MA | |
| Family Practice | OR | |
| Nurse Practitioner | WA | |
| Internal Medicine | MA |
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.