SEAN PATRICK CALLAHAN (M.D.) – Family Medicine Physician, NPI 1194811828
Family Medicine Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
4,431 FAMILY PRACTICE in OH
Provider Addresses for SEAN PATRICK CALLAHAN (M.D.)
11697 W STATE ROUTE 163
OAK HARBOR, OH 43449
Phone: (419) 898-0993
Fax: (419) 898-2444
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 104 Open Payments records for all available years, with a total value of $1,935.
Total Amount is formed as General ($1,935) + Research ($0) + Ownership ($0) = $1,935.
Last reported payment date: 2024-12-05 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($310).
Total Amount
$1,935
General + Research + Ownership
Payments
104
Total payment records
General Amount
$1,935
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $310 |
| ABBVIE INC. | $259 |
| Novo Nordisk Inc | $147 |
| Amgen Inc. | $127 |
| Lilly USA, LLC | $72 |
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: 2007-01-09
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 |
|---|---|---|---|---|
| I20070109000498 | I | Family Practice | 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 | 618 | 162 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 166 | 89 | $0 |
| 83036 | Hemoglobin a1c level | 97 | 42 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 41 | 38 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 39 | 22 | $0 |
Insurance plans in this area (ZIP 43449)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | OH | 83036 | Hemoglobin A1C level | 85 | 49 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OH | |
| - | OH | |
| General Practice | OH | |
| Internal Medicine | OH | |
| Family Practice | OH | |
| - | OH | |
| General Surgery | OH | |
| Family Practice | OH | |
| Family Practice | OH | |
| Nurse Practitioner | OH |
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