MRS. SIGRUN HALLMEYER (MD) – Hematology & Oncology Physician, NPI 1164481412
Hematology & Oncology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
727 HEMATOLOGY/ONCOLOGY in IL
Provider Addresses for MRS. SIGRUN HALLMEYER (MD)
29373 NETWORK PL
CHICAGO, IL 606731293
Phone:
Type: Mailing
1700 LUTHER LN # 2200
PARK RIDGE, IL 600681270
Phone: (847) 268-8200
Fax: (847) 318-2905
Type: Location
PO box, Russell Road, Paoli, Tredyffrin Township, Chester County, Pennsylvania, 19301, United States
PARK RIDGE, IL 600680736
Phone: (847) 268-8200
Fax: (847) 410-0051
Type: Mailing
1700, Luther Lane, Butler County, Missouri, 63901, United States
PARK RIDGE, IL 600681270
Phone: (847) 268-8200
Fax: (847) 410-0051
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 15 Open Payments records for all available years, with a total value of $14,261.
Total Amount is formed as General ($14,261) + Research ($0) + Ownership ($0) = $14,261.
Last reported payment date: 2024-12-22 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($8,347).
Total Amount
$14,261
General + Research + Ownership
Payments
15
Total payment records
General Amount
$14,261
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $8,347 |
| Eli Lilly and Company | $1,875 |
| Novartis Pharmaceuticals Corporation | $1,575 |
| ARRAY BIOPHARMA INC | $1,260 |
| Daiichi Sankyo Inc. | $1,138 |
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: 2005-10-18
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 |
|---|---|---|---|---|
| I20051018000494 | I | Hematology/Oncology | 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 | 397 | 194 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 149 | 121 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 105 | 61 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 61 | 35 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 49 | 30 | $0 |
Insurance plans in this area (ZIP 60673)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | IL | 96415 | Infusion of chemotherapy into a vein | 31 | 12 |
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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