MRS. MARGARET ISELY DAUPHIN-VAN DYK (M.D.) – Specialist, NPI 1801852926
Specialist
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
8,824 INTERNAL MEDICINE in IL
Provider Addresses for MRS. MARGARET ISELY DAUPHIN-VAN DYK (M.D.)
2800 N SHERIDAN RD STE 406
CHICAGO, IL 606576158
Phone: (312) 201-0044
Fax: (773) 697-4628
Type: Location
2738, Lincoln Street, Central Street Evanston, Evanston, Evanston Township, Cook County, Illinois, 60201, United States
EVANSTON, IL 602012043
Phone: (847) 869-7159
Type: Mailing
Heaven on Seven, 111, North Wabash Avenue, Loop, Chicago, Cook County, Illinois, 60602, United States
SUITE 1212
CHICAGO, IL 606021903
Phone: (312) 201-0044
Fax: (312) 201-9202
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 $37.
Total Amount is formed as General ($37) + Research ($0) + Ownership ($0) = $37.
Last reported payment date: 2024-06-04 • Largest payer in this snapshot: Inspire Medical Systems, Inc. ($22).
Total Amount
$37
General + Research + Ownership
Payments
2
Total payment records
General Amount
$37
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Inspire Medical Systems, Inc. | $22 |
| Hikma Pharmaceuticals USA | $15 |
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: 2004-09-27
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 |
|---|---|---|---|---|
| I20040927001011 | I | Internal Medicine | IL | 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 | 88 | 32 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 55 | 28 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 27 | 17 | $0 |
Insurance plans in this area (ZIP 60657)
Loading plans...
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.