ELIZABETH MARY KLEIN (M.D.) – Critical Care Medicine (Internal Medicine) Physician, NPI 1396716940
Critical Care Medicine (Internal Medicine) Physician
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NPPES metrics only — not quality of care.
348 PULMONARY DISEASE in WI
Provider Addresses for ELIZABETH MARY KLEIN (M.D.)
14555 W National Ave
New Berlin, WI 531514494
Phone: (844) 284-0381
Fax: (414) 203-3788
Type: Location
850 Busse Hwy
Park Ridge, IL 600682302
Phone: (847) 759-4770
Fax: (847) 759-8824
Type: Location
9201 Waukegan Rd
Morton Grove, IL 60053
Phone: (847) 759-4770
Fax: (847) 759-8824
Type: Location
9555 S 52nd Ave
Oak Lawn, IL 604533054
Phone: (708) 634-0950
Type: Location
29373 NETWORK PL
CHICAGO, IL 606731293
Phone: (847) 390-5900
Type: Mailing
9000 WAUKEGAN RD STE 220
MORTON GROVE, IL 600532130
Phone: (847) 759-4770
Fax: (847) 759-8824
Type: Location
850 BUSSE HWY
PARK RIDGE, IL 600682302
Phone: (847) 759-4770
Fax: (847) 759-8824
Type: Location
Waukegan Road, Morton Grove, Niles Township, Cook County, Illinois, 60029, United States
MORTON GROVE, IL 600532102
Phone: (847) 759-4770
Fax: (847) 759-8824
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $53.
Total Amount is formed as General ($53) + Research ($0) + Ownership ($0) = $53.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: GENZYME CORPORATION ($21).
Total Amount
$53
General + Research + Ownership
Payments
4
Total payment records
General Amount
$53
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GENZYME CORPORATION | $21 |
| Electromed, Inc. | $19 |
| Collegium Pharmaceutical, Inc. | $13 |
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: 2025-10-21
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 |
|---|---|---|---|---|
| I20080428000219 | I | Pulmonary Disease | IL | TBD |
| I20251021002104 | I | Critical Care (Intensivists) | WI | 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 | 347 | 159 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 172 | 122 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 165 | 104 | $0 |
| 99291 | Critical care, first 30-74 minutes | 113 | 57 | $0 |
| 94729 | Test to examine how well the lungs exchange gases | 85 | 85 | $0 |
Insurance plans in this area (ZIP 53151)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| A N E S T H E S I O L O G Y | IL | |
| - | MN | |
| - | IL | |
| - | IL | |
| Rheumatology, Internal Medicine | IL | |
| - | IL | |
| Internal Medicine | IL | |
| P S Y C H I A T R Y | IL | |
| - | IL |
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