MS. MARY ANN HOLEM (FNP-BC) – Family Nurse Practitioner, NPI 1972897791
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
11,632 NURSE PRACTITIONER in IL
Provider Addresses for MS. MARY ANN HOLEM (FNP-BC)
360 STATION DR
CRYSTAL LAKE, IL 600147978
Phone: (815) 338-6600
Fax: (815) 455-8044
Type: Mailing
2520 Elisha Ave
Zion, IL 600992676
Phone: (847) 872-4561
Type: Location
1925 Huntley Rd
West Dundee, IL 601189301
Phone: (815) 338-6600
Fax: (847) 426-5162
Type: Location
2507 N Richmond Rd
McHenry, IL 600515407
Phone: (815) 338-6600
Fax: (815) 385-3255
Type: Location
10350 Haligus Rd
Huntley, IL 601429545
Phone: (815) 338-6600
Fax: (847) 802-7112
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $203.
Total Amount is formed as General ($203) + Research ($0) + Ownership ($0) = $203.
Last reported payment date: 2024-11-06 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($203).
Total Amount
$203
General + Research + Ownership
Payments
2
Total payment records
General Amount
$203
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $203 |
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: 2012-02-20
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 |
|---|---|---|---|---|
| I20120220000445 | I | Nurse Practitioner | 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 |
|---|---|---|---|---|
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 65 | 65 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 48 | 44 | $0 |
Insurance plans in this area (ZIP 60014)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | LA | |
| Family Practice | MI | |
| Emergency Medicine | IL | |
| Emergency Medicine | IL | |
| - | IL | |
| Emergency Medicine | IN | |
| Emergency Medicine, Family Practice | MI | |
| Internal Medicine | IL | |
| Family Practice | IL | |
| Nurse Practitioner | IL |
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