MS. DIANNE M MAWHIRTER (CNP) – Family Nurse Practitioner, NPI 1942314414
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
14,984 NURSE PRACTITIONER in OH
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Provider Addresses for MS. DIANNE M MAWHIRTER (CNP)
PO BOX 378
SANDUSKY, OH 448710378
Phone: (419) 609-1112
Fax: (419) 609-1123
Type: Mailing
44, Executive Drive, Norwalk, Huron County, Ohio, 44857, United States
NORWALK, OH 448579566
Phone: (419) 668-4851
Fax: (419) 663-5146
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 33 Open Payments records for all available years, with a total value of $669.
Total Amount is formed as General ($669) + Research ($0) + Ownership ($0) = $669.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: ABBVIE INC. ($161).
Total Amount
$669
General + Research + Ownership
Payments
33
Total payment records
General Amount
$669
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $161 |
| Novo Nordisk Inc | $55 |
| Alphatec Spine, Inc | $49 |
| PFIZER INC. | $48 |
| Astellas Pharma US Inc | $44 |
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: 2004-05-25
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 |
|---|---|---|---|---|
| I20040525001476 | I | Nurse Practitioner | OH | 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 | 106 | 57 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 38 | 38 | $0 |
| 83036 | Hemoglobin a1c level | 21 | 13 | $0 |
| G0008 | Administration of influenza virus vaccine | 17 | 17 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 14 | 12 | $0 |
Insurance plans in this area (ZIP 44871)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NURSE PRACTITIONER | OH | 83036 | Hemoglobin A1C level | 17 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | OH | |
| Family Practice | OH | |
| - | OH | |
| - | OH | |
| Family Practice | OH | |
| Family Practice | OH | |
| - | OH | |
| - | OH | |
| Family Practice | OH | |
| Internal Medicine | OH |
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