DR. MARY ELIZABETH DIAMOND (D.O.) – Child & Adolescent Psychiatry Physician, NPI 1962617837
Child & Adolescent Psychiatry Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,871 PSYCHIATRY in PA
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Provider Addresses for DR. MARY ELIZABETH DIAMOND (D.O.)
41, Paoli Plaza, Paoli, Tredyffrin Township, Chester County, Pennsylvania, 19301, United States
SUITE D1
PAOLI, PA 193011367
Phone: (610) 296-9238
Fax: (610) 296-9239
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)
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: 2025-10-23
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 |
|---|---|---|---|---|
| I20180521001313 | I | Psychiatry | DE | TBD |
| I20251023000018 | I | Psychiatry | PA | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 19301)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | DE | |
| P S Y C H I A T R Y | DE | |
| Nurse Practitioner | MD | |
| Nurse Practitioner | DE |
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