SEAN MICHAEL GALLAGHER – Allergy & Immunology Physician, NPI 1255954368
Allergy & Immunology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
177 ALLERGY/IMMUNOLOGY in MI
Provider Addresses for SEAN MICHAEL GALLAGHER
1500 E MEDICAL CENTER DR SPC 5718
ANN ARBOR, MI 481095718
Phone:
Type: Mailing
1051 N CANTON CENTER RD
CANTON, MI 481875097
Phone: (734) 844-5400
Type: Location
PO BOX 603725
CHARLOTTE, NC 282603725
Phone: (828) 575-2625
Fax: (828) 350-2174
Type: Mailing
4212 OLD WILLIAM PENN HWY
MURRYSVILLE, PA 156681901
Phone: (724) 837-4070
Fax: (724) 837-3316
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: 2025-09-08
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 |
|---|---|---|---|---|
| I20250908004065 | I | Allergy/Immunology | 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 48109)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Allergy/Immunology, Internal Medicine | NC | |
| Allergy/Immunology, Internal Medicine | NC | |
| Nurse Practitioner | NC | |
| Allergy/Immunology, Pediatric Medicine | TN | |
| Allergy/Immunology, Internal Medicine | NC | |
| - | NC | |
| Allergy/Immunology, Pediatric Medicine | VA | |
| A L L E R G Y/ I M M U N O L O G Y | NC | |
| - | VA | |
| A L L E R G Y/ I M M U N O L O G Y | NC |
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