CALLAN MARCUS (APN) – Nurse Practitioner, NPI 1144692021
Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for CALLAN MARCUS (APN)
3455 Ringsby Ct Ste 102
Denver, CO 802164923
Phone: (303) 500-1518
Fax: (720) 598-0440
Type: Location
1449 N ASHLAND AVE
APT 3R
CHICAGO, IL 606222269
Phone: (913) 481-4201
Type: Mailing
2007 95TH ST
SUITE B
NAPERVILLE, IL 605648459
Phone: (630) 646-6593
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $120.
Total Amount is formed as General ($120) + Research ($0) + Ownership ($0) = $120.
Last reported payment date: 2023-09-12 • Largest payer in this snapshot: Janssen Pharmaceuticals, Inc ($120).
Total Amount
$120
General + Research + Ownership
Payments
1
Total payment records
General Amount
$120
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Pharmaceuticals, Inc | $120 |
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: 2019-01-16
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 |
|---|---|---|---|---|
| I20190116001426 | I | Nurse Practitioner | 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 80216)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | VA | |
| - | VA | |
| - | CO | |
| Nurse Practitioner | CO | |
| - | OK | |
| Nurse Practitioner | OK | |
| Nurse Practitioner | FL | |
| Physician Assistant | CO | |
| - | GA | |
| Nurse Practitioner | OK |
Reviews
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