MARTIN F HAMMAR (LISW) – Clinical Social Worker, NPI 1093850034
Clinical Social Worker
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,650 CLINICAL SOCIAL WORKER in OH
Provider Addresses for MARTIN F HAMMAR (LISW)
90 HOSPITAL DR
ATHENS, OH 457012301
Phone: (740) 593-3682
Fax: (740) 594-5642
Type: Mailing
PO BOX 188
CHILLICOTHE, OH 456010188
Phone: (740) 773-4366
Fax: (740) 773-4750
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: 2015-06-09
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 |
|---|---|---|---|---|
| I20150609002288 | I | Clinical Social Worker | 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 |
|---|---|---|---|---|
| 90837 | Psychotherapy, 1 hour | 83 | 13 | $0 |
Insurance plans in this area (ZIP 45701)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | OH | |
| - | OH | |
| Orthopedic Surgery | OH | |
| Family Practice, Emergency Medicine, General Practice | OH | |
| Nurse Practitioner | OH | |
| General Surgery | OH | |
| U R O L O G Y | OH | |
| Mental Health Counselor | OH | |
| - | OH | |
| Nurse Practitioner | OH |
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