MERIN ELIZABETH MATHEW (D.O.) – Hospitalist Physician, NPI 1114371176
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,392 HOSPITALIST in IL
Provider Addresses for MERIN ELIZABETH MATHEW (D.O.)
2213 CENTRAL ST APT 1N
EVANSTON, IL 602011469
Phone: (716) 406-8186
Type: Mailing
1653 W Congress Pkwy
Chicago, IL 606123833
Phone: (312) 945-5000
Type: Location
Ascension Columbia Saint Mary's Women's Medical Center, 2323, North Lake Drive, The East Side, Milwaukee, Milwaukee County, Wisconsin, 53211, United States
MILWAUKEE, WI 532114508
Phone: (414) 270-4932
Type: Location
2650 RIDGE AVE
EVANSTON, IL 602011700
Phone: (847) 570-1010
Type: Location
2650 RIDGE AVE STE 1223
EVANSTON, IL 602011700
Phone: (847) 570-2040
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $428.
Total Amount is formed as General ($428) + Research ($0) + Ownership ($0) = $428.
Last reported payment date: 2024-08-14 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($191).
Total Amount
$428
General + Research + Ownership
Payments
5
Total payment records
General Amount
$428
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-14
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $191 |
| Alexion Pharmaceuticals, Inc. | $125 |
| ABBVIE INC. | $77 |
| Neurocrine BioSciences Inc. | $35 |
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: 2024-02-14
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 |
|---|---|---|---|---|
| I20190805001663 | I | Internal Medicine | WI | TBD |
| I20240214001686 | I | Hospitalist | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 248 | 83 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 61 | 59 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 54 | 37 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 50 | 23 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 12 | 12 | $0 |
Insurance plans in this area (ZIP 60201)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| N E U R O L O G Y | IL | |
| Hospitalist, Internal Medicine | IL | |
| O P H T H A L M O L O G Y | IL | |
| - | IL | |
| Allergy/Immunology, Internal Medicine | IL | |
| Physician Assistant | IL | |
| Hematology/Oncology, Internal Medicine | MO | |
| Nurse Practitioner | IL | |
| Physician Assistant | IL |
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