DR. DEBBIE HAYMOWATTEE HALLAK (DO) – Internal Medicine Physician, NPI 1154493971
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,218 INTERNAL MEDICINE in MI
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Provider Addresses for DR. DEBBIE HAYMOWATTEE HALLAK (DO)
PO BOX 327
CHARLOTTE, MI 48813
Phone: (517) 543-7800
Fax: (517) 543-7900
Type: Mailing
616, Meijer Street, Charlotte, Eaton County, Michigan, 48813, United States
CHARLOTTE, MI 48813
Phone: (517) 543-7800
Fax: (517) 543-7900
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 18 Open Payments records for all available years, with a total value of $342.
Total Amount is formed as General ($342) + Research ($0) + Ownership ($0) = $342.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: ABBVIE INC. ($90).
Total Amount
$342
General + Research + Ownership
Payments
18
Total payment records
General Amount
$342
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $90 |
| GlaxoSmithKline, LLC. | $80 |
| Novo Nordisk Inc | $79 |
| Merck Sharp & Dohme LLC | $23 |
| Averitas Pharma Inc. | $23 |
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: 2006-01-09
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 |
|---|---|---|---|---|
| I20060109000868 | I | Internal Medicine | MI | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 145 | 72 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 115 | 101 | $0 |
| 99497 | Advance care planning, first 30 minutes | 108 | 95 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 93 | 88 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 88 | 58 | $0 |
Insurance plans in this area (ZIP 48813)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | ID | |
| Nurse Practitioner | MI | |
| Nurse Practitioner | MI | |
| A N E S T H E S I O L O G Y | MI | |
| Nurse Practitioner | MI | |
| Certified Registered Nurse Anesthetist (Crna) | MI | |
| - | MI | |
| Osteopathic Manipulative Medicine | MI | |
| Physician Assistant | OH | |
| Clinical Social Worker | MI |
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