DR. DAVID KALKSTEIN (MD, PHD) – Psychiatry Physician, NPI 1215923255
Psychiatry Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
149 PSYCHIATRY in DE
Provider Addresses for DR. DAVID KALKSTEIN (MD, PHD)
3411 SILVERSIDE RD
STE 102
WILMINGTON, DE 198104812
Phone: (302) 478-7981
Fax: (302) 478-7393
Type: Location
Residence Inn Rehoboth Beach, 18964, John J Williams Highway, Maplewood, Rehoboth Beach, Sussex County, Delaware, 19971, United States
STE 210
REHOBOTH BEACH, DE 199714474
Phone: (302) 478-7981
Fax: (302) 644-1737
Type: Mailing
1919 CHESTNUT ST
APT 2002
PHILADELPHIA, PA 191033433
Phone: (610) 716-3715
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.
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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: 2010-01-14
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 |
|---|---|---|---|---|
| I20091217000444 | I | Psychiatry | PA | TBD |
| I20100114000433 | I | Psychiatry | DE | 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 |
|---|---|---|---|---|
| Q3014 | Telehealth originating site facility fee | 904 | 191 | $0 |
| 90837 | Psychotherapy, 1 hour | 760 | 115 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 450 | 127 | $0 |
| 90833 | Psychotherapy with evaluation and management visit, 30 minutes | 366 | 97 | $0 |
| 90834 | Psychotherapy, 45 minutes | 257 | 66 | $0 |
Insurance plans in this area (ZIP 19810)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PSYCHIATRY | DE | 90833 | Psychotherapy, 30 minutes with patient and/or family member | 584 | 216 |
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