GWENYTH LYNNE DAY (MD) – Pulmonary Disease Physician, NPI 1609371582
Pulmonary Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,780 PULMONARY DISEASE in CA
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Provider Addresses for GWENYTH LYNNE DAY (MD)
44 NEW HVN
LAGUNA NIGUEL, CA 926772933
Phone:
Type: Mailing
3065 CLERMONT ST
DENVER, CO 802072639
Phone:
Type: Mailing
Ronald Reagan UCLA Medical Center, 757, Westwood Plaza, Westwood, Los Angeles, Los Angeles County, California, 90095, United States
LOS ANGELES, CA 900958358
Phone: (310) 825-9111
Type: Location
PO BOX 110429
AURORA, CO 800420429
Phone:
Type: Mailing
12700 E 19th Ave
Aurora, CO 800452560
Phone: (303) 724-6043
Type: Location
12605 E 16TH AVE
AURORA, CO 800452545
Phone: (720) 848-0000
Type: Location
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: 2022-06-29
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 |
|---|---|---|---|---|
| I20220629003060 | I | Pulmonary Disease | CO | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 92677)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CO | |
| Family Practice | CO | |
| Advanced Heart Failure And Transplant Cardiology, Cardiac Electrophysiology, Cardiovascular Disease (Cardiology), Internal Medicine | CO | |
| Emergency Medicine | CO | |
| Emergency Medicine | CO | |
| - | CO | |
| - | CO | |
| Emergency Medicine | CO | |
| - | CO | |
| - | CO |
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