GLENDA GRACE CALLENDER (MD) – Surgical Oncology Physician, NPI 1952599441
Surgical Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
525 GENERAL SURGERY in CT
Provider Addresses for GLENDA GRACE CALLENDER (MD)
330 Cedar St # St130
New Haven, CT 065103218
Phone: (203) 737-2036
Fax: (203) 785-2498
Type: Location
PO BOX 208062
330 CEDAR ST, FMB 130
NEW HAVEN, CT 065208062
Phone: (203) 737-2036
Fax: (203) 785-2498
Type: Mailing
Scovill Street, Exchange Place, Waterbury, New Haven County, Connecticut, 06706, United States
WATERBURY, CT 067061127
Phone: (203) 709-6871
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $83.
Total Amount is formed as General ($83) + Research ($0) + Ownership ($0) = $83.
Last reported payment date: 2023-11-20 • Largest payer in this snapshot: Corcept Therapeutics ($61).
Total Amount
$83
General + Research + Ownership
Payments
2
Total payment records
General Amount
$83
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-11-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Corcept Therapeutics | $61 |
| W. L. Gore & Associates, Inc. | $22 |
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: 2013-05-24
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 |
|---|---|---|---|---|
| I20130524000143 | I | General Surgery | 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 |
|---|---|---|---|---|
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 71 | 71 | $0 |
| 31575 | Diagnostic exam of voice box using a flexible endoscope | 63 | 63 | $0 |
| 60500 | Removal or exploration of parathyroid glands | 37 | 37 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 18 | 18 | $0 |
Insurance plans in this area (ZIP 06510)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CT | |
| Nurse Practitioner | CT | |
| Nurse Practitioner | CT | |
| - | CT | |
| - | CT | |
| - | CT | |
| Internal Medicine | CT | |
| Internal Medicine | CT | |
| Nurse Practitioner | CT | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology) | CT |
Reviews
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