KAREN WIEDEMANN ELDIN (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1043266901
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,394 PATHOLOGY in TX
Provider Addresses for KAREN WIEDEMANN ELDIN (MD)
6621 Fannin St
Houston, TX 770302303
Phone: (832) 824-1866
Fax: (832) 825-1032
Type: Location
PO BOX 741169
HOUSTON, TX 772741169
Phone: (832) 824-1866
Fax: (832) 825-1032
Type: Mailing
81 HIGHLAND AVE
SALEM, MA 019702768
Phone: (978) 354-3600
Type: Location
Texas Children's Hospital, 6621, Fannin Street, Texas Medical Center, Houston, Harris County, Texas, 77030, United States
HOUSTON, TX 770302303
Phone: (832) 824-1866
Fax: (832) 825-1032
Type: Location
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: 2022-09-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20060417000519 | I | Pathology | TX | TBD |
| I20220927001717 | I | Pathology | MA | 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 |
|---|---|---|---|---|
| 84165 | Protein measurement, serum | 1,317 | 972 | $0 |
| 86334 | Immunologic analysis technique on serum (immunofixation) | 809 | 645 | $0 |
| 84166 | Protein measurement, body fluid | 277 | 204 | $0 |
| 86335 | Immunologic analysis technique on body fluid, other fluids with concentration | 147 | 98 | $0 |
Insurance plans in this area (ZIP 77030)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | MA | |
| Nurse Practitioner | NY | |
| Diagnostic Radiology | ME | |
| Physician Assistant | MA | |
| Diagnostic Radiology | MI | |
| Diagnostic Radiology | MA | |
| Diagnostic Radiology | OH | |
| P A T H O L O G Y | MA | |
| Family Practice, Osteopathic Manipulative Medicine | MA | |
| Diagnostic Radiology, Interventional Radiology | NY |
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