MARY KATHERINE MORRISON – Physician Assistant, NPI 1386263010
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,243 PHYSICIAN ASSISTANT in CT
Provider Addresses for MARY KATHERINE MORRISON
11 FOX HOLLOW RD
OLD SAYBROOK, CT 064751077
Phone: (860) 391-3045
Type: Location
1 LONG WHARF DR STE 302
NEW HAVEN, CT 065115593
Phone: (203) 777-7500
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 16 Open Payments records for all available years, with a total value of $336.
Total Amount is formed as General ($336) + Research ($0) + Ownership ($0) = $336.
Last reported payment date: 2024-12-09 • Largest payer in this snapshot: GENZYME CORPORATION ($116).
Total Amount
$336
General + Research + Ownership
Payments
16
Total payment records
General Amount
$336
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GENZYME CORPORATION | $116 |
| GlaxoSmithKline, LLC. | $109 |
| Regeneron Healthcare Solutions, Inc. | $89 |
| Medtronic, 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: 2021-05-06
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 |
|---|---|---|---|---|
| I20210506002172 | I | Physician Assistant | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 303 | 192 | $0 |
| 69210 | Removal of impacted ear wax | 168 | 119 | $0 |
| 92567 | Test to assess middle ear function | 145 | 121 | $0 |
| 92557 | Comprehensive hearing and speech recognition test | 134 | 116 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 75 | 75 | $0 |
Insurance plans in this area (ZIP 06475)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O T O L A R Y N G O L O G Y | CT | |
| Physician Assistant | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| - | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| O T O L A R Y N G O L O G Y | CT |
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