DR. IAN D KLEINHEN (M.D.) – Internal Medicine Physician, NPI 1013916808
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,448 INTERNAL MEDICINE in CT
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Provider Addresses for DR. IAN D KLEINHEN (M.D.)
74, Mack Street, Windsor, Hartford County, Connecticut, 06095, United States
STE 1
WINDSOR, CT 060952759
Phone: (860) 298-8830
Fax: (860) 298-9929
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 21 Open Payments records for all available years, with a total value of $660.
Total Amount is formed as General ($660) + Research ($0) + Ownership ($0) = $660.
Last reported payment date: 2024-10-31 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($305).
Total Amount
$660
General + Research + Ownership
Payments
21
Total payment records
General Amount
$660
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $305 |
| Amgen Inc. | $102 |
| Exact Sciences Corporation | $41 |
| Baxter Healthcare | $27 |
| GlaxoSmithKline, LLC. | $26 |
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: 2005-12-09
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 |
|---|---|---|---|---|
| I20051209000199 | I | Internal Medicine | CT | 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 | 170 | 85 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 112 | 59 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 81 | 81 | $0 |
| 99497 | Advance care planning, first 30 minutes | 74 | 74 | $0 |
| 90694 | Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 39 | 39 | $0 |
Insurance plans in this area (ZIP 06095)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physical Therapist In Private Practice | CT | |
| Physical Therapist In Private Practice | CT | |
| Family Practice | CT | |
| Physical Therapist In Private Practice | CT | |
| Occupational Therapist In Private Practice | NY | |
| Internal Medicine | CT | |
| Physical Therapist In Private Practice | CT | |
| Nurse Practitioner | CT | |
| Physical Therapist In Private Practice | CT | |
| Physical Therapist In Private Practice | MA |
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