MELISSA F HALVORSON (MD) – Obstetrics & Gynecology Physician, NPI 1114994365
Obstetrics & Gynecology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MELISSA F HALVORSON (MD)
1005 S US HIGHWAY 27 STE 100
SAINT JOHNS, MI 488792423
Phone: (989) 224-3000
Fax: (989) 668-0423
Type: Location
Turf Lane, East Lansing, Clinton County, Michigan, 48912, United States
EAST LANSING, MI 488236392
Phone: (517) 484-3000
Fax: (517) 484-6358
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $21.
Total Amount is formed as General ($21) + Research ($0) + Ownership ($0) = $21.
Last reported payment date: 2023-08-22 • Largest payer in this snapshot: Exact Sciences Corporation ($21).
Total Amount
$21
General + Research + Ownership
Payments
1
Total payment records
General Amount
$21
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-08-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Exact Sciences Corporation | $21 |
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: 2004-08-25
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 |
|---|---|---|---|---|
| I20040825001235 | I | Obstetrics/Gynecology | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 36 | 25 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 33 | 23 | $0 |
| G0101 | Cervical or vaginal cancer screening; pelvic and clinical breast examination | 17 | 17 | $0 |
| 81003 | Automated urinalysis test | 16 | 14 | $0 |
| Q0091 | Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 16 | 16 | $0 |
Insurance plans in this area (ZIP 48879)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MI | |
| - | MI | |
| - | MI |
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