NICHOLAS PHILIP KOENIG (MD) – Internal Medicine Physician, NPI 1043870009
Internal Medicine Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
4,186 INTERNAL MEDICINE in MO
Provider Addresses for NICHOLAS PHILIP KOENIG (MD)
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 631101003
Phone: (314) 362-5000
Type: Location
660, South Euclid Avenue, Central West End, City of Saint Louis, Missouri, 63110, United States
SAINT LOUIS, MO 631101010
Phone: (314) 362-5000
Type: Mailing
209 MARTIN LUTHER KING JR WAY
TACOMA, WA 984054265
Phone: (535) 963-3802
Fax: (253) 596-3301
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
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: 2026-01-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20220922003106 | I | Internal Medicine | WA | TBD |
| I20260121001566 | I | Internal Medicine | 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 63110)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | FL | |
| Family Practice | CA | |
| Family Practice | PA | |
| Family Practice | GA | |
| Family Practice | AZ | |
| Family Practice | MN | |
| Emergency Medicine | GA | |
| Family Practice | CA | |
| Family Practice | MO | |
| Geriatric Medicine, Family Practice | TX |
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.