Doctor profile · Federal record

Dr. Sergay Agoff, MD

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Clinical Pathology Physician · Clinical Pathology/Laboratory Medicine Physician · Hospitalist Physician · Anatomic Pathology Physician · Seattle, WA

  • NPI 1457468852
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
325 9Th Ave
Seattle, WA 981042420
(206) 520-5000
Additional location
1550 N 115Th St
Seattle, WA 981338401
Additional location
1959 Ne Pacific St
Seattle, WA 981950001
Mailing address
Po Box 50095
Seattle, WA 981455095

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
January 5, 2026
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Washington #MD00037153

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457468852. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,664
Distinct HCPCS
10
Medicare allowed
$109,959
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 1,020 511 $40
88341 Special stained specimen slides to examine tissue, each additional procedure 424 94 $30
88112 Cell examination of specimen, selective cellular enhancement technique 317 254 $29
88173 Evaluation of fine needle aspirate with interpretation and report 276 125 $75
88342 Special stained specimen slides to examine tissue, initial procedure 143 130 $37
88104 Cell examination of body fluid, smears 81 67 $29
88108 Cell examination of specimen, concentration technique 78 63 $24
88307 Pathology examination of tissue using a microscope, moderately high complexity 76 48 $88
88360 Microscopic genetic analysis of tumor, manual 45 31 $45
88312 Special stained specimen slides to identify organisms including interpretation and report 40 27 $28

In context: peer comparison

Among 33 peers in Seattle Anatomic Pathology & Clinical Pathology Physician, average services per provider: 112. This provider delivers 24× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sergay Agoff's medical specialty?
Dr. Sergay Agoff practices Anatomic Pathology & Clinical Pathology Physician in Seattle, WA.
Where does Dr. Sergay Agoff practice?
Dr. Sergay Agoff practices at 325 9Th Ave, Seattle, WA 981042420. Office phone: 2065205000.
What is Dr. Sergay Agoff's NPI?
Dr. Sergay Agoff's National Provider Identifier (NPI) is 1457468852, issued by NPPES.
Does Dr. Sergay Agoff accept Medicare assignment?
Yes. Dr. Sergay Agoff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sergay Agoff commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Cell examination of specimen, selective cellular enhancement technique (HCPCS 88112). Source: CMS Medicare Physician & Other Practitioners file.