NATHAN M LEBAK (MD) – Allergy & Immunology (Internal Medicine) Physician, NPI 1285841155
Allergy & Immunology (Internal Medicine) Physician
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Profile Insights
NPPES metrics only — not quality of care.
97 ALLERGY/IMMUNOLOGY in WI
Provider Addresses for NATHAN M LEBAK (MD)
252 MCHENRY ST STE 8
BURLINGTON, WI 531051828
Phone: (262) 767-6000
Type: Location
PO BOX 735044
CHICAGO, IL 606735044
Phone: (800) 326-2250
Type: Mailing
248 MCHENRY ST
BURLINGTON, WI 531051828
Phone: (262) 767-8000
Type: Location
West Forest Home Avenue, Southgate, Milwaukee, Milwaukee County, Wisconsin, 53215, United States
MILWAUKEE, WI 532152843
Phone: (414) 389-2233
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2008-09-26
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20080926000498 | I | Allergy/Immunology | 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 |
|---|---|---|---|---|
| 95004 | Test for allergy using allergenic extract | 977 | 27 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 313 | 188 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 67 | 57 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 58 | 58 | $0 |
| 94010 | Test to measure expiratory airflow and volume | 21 | 21 | $0 |
Insurance plans in this area (ZIP 53105)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ALLERGY/IMMUNOLOGY | WI | 94060 | Measurement and graphic recording of the amount and speed of breathed air, before and following medication administration | 14 | 14 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | WI | |
| Family Practice | WI | |
| Family Practice | IL | |
| Geriatric Medicine, Internal Medicine | WI | |
| - | WI | |
| - | WI | |
| - | IL | |
| Certified Registered Nurse Anesthetist (Crna) | IL | |
| Family Practice | WI | |
| - | OH |
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