SERGAY NICHOLAS AGOFF (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1457468852
Anatomic Pathology & Clinical Pathology Physician
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NPPES metrics only — not quality of care.
369 PATHOLOGY in WA
Provider Addresses for SERGAY NICHOLAS AGOFF (MD)
1550 N 115th St
Seattle, WA 981338401
Phone: (206) 520-5000
Type: Location
1959 NE PACIFIC ST
Seattle, WA 981950001
Phone: (206) 520-5000
Type: Location
PO BOX 50095
SEATTLE, WA 981455095
Phone:
Type: Mailing
325 9TH AVE
SEATTLE, WA 981042420
Phone: (206) 520-5000
Type: Location
1100 OLIVE WAY MSC M4-PA
SEATTLE, WA 981011873
Phone:
Type: Mailing
Virginia Mason Hospital & Seattle Medical Center, 1100, 9th Avenue, Central Business District, First Hill, Seattle, King County, Washington, 98101, United States
SEATTLE, WA 981012756
Phone: (206) 223-6600
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
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Open Payments (CMS)
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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: 2004-06-02
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 |
|---|---|---|---|---|
| I20040602001664 | I | Pathology | WA | 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 | 1,020 | 511 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 424 | 94 | $0 |
| 88112 | Cell examination of specimen, selective cellular enhancement technique | 317 | 254 | $0 |
| 88173 | Evaluation of fine needle aspirate with interpretation and report | 276 | 125 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 143 | 130 | $0 |
Insurance plans in this area (ZIP 98133)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PATHOLOGY | WA | 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 19 | 18 |
| PATHOLOGY | WA | 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 77 | 51 |
| PATHOLOGY | WA | 88312 | Special stained specimen slides to identify organisms including interpretation and report | 22 | 13 |
| PATHOLOGY | WA | 88342 | Tissue or cell analysis by immunologic technique | 97 | 84 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Critical Care (Intensivists) | WA | |
| Gastroenterology, Internal Medicine | WA | |
| - | WA | |
| - | WA | |
| D E R M A T O L O G Y | WA | |
| - | WA | |
| Internal Medicine | WA | |
| - | WA | |
| Internal Medicine, Hematology/Oncology | WA | |
| - | WA |
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