JAMES MALLEIS (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1255836847
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
573 PATHOLOGY in MI
Provider Addresses for JAMES MALLEIS (MD)
35 MICHIGAN ST NE STE 6330
GRAND RAPIDS, MI 495032530
Phone: (800) 475-6236
Type: Location
1959 NE Pacific St
Seattle, WA 981950001
Phone: (206) 543-1140
Type: Location
1959 NE PACIFIC ST BOX 357470
SEATTLE, WA 981950001
Phone: (206) 543-1140
Fax: (206) 543-3644
Type: Mailing
University of Washington Medical Center - Montlake, 1959, Northeast Pacific Street, University District, Seattle, King County, Washington, 98195, United States
SEATTLE, WA 981950001
Phone: (206) 543-1140
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $29.
Total Amount is formed as General ($29) + Research ($0) + Ownership ($0) = $29.
Last reported payment date: 2024-05-16 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($29).
Total Amount
$29
General + Research + Ownership
Payments
1
Total payment records
General Amount
$29
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $29 |
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: 2023-07-05
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 |
|---|---|---|---|---|
| I20230705002596 | I | Pathology | MI | 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 |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 316 | 173 | $0 |
| 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 71 | 36 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 39 | 14 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 32 | 24 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 15 | 15 | $0 |
Insurance plans in this area (ZIP 49503)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | MI | |
| P A T H O L O G Y | MI | |
| P A T H O L O G Y | MI | |
| P A T H O L O G Y | VT | |
| P A T H O L O G Y | MI | |
| P A T H O L O G Y | MI | |
| P A T H O L O G Y | NY | |
| P A T H O L O G Y | MI | |
| P A T H O L O G Y | MI | |
| P A T H O L O G Y | OH |
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