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HAMILTON TSANG M.D.
NPI 1992062822
Pathology - Anatomic Pathology & Clinical Pathology in Seattle, WA

Active since April 17, 2012PECOS EnrolledAccepts Medicare Assignment
93.09/100
CMS Quality Rating
1959 NE PACIFIC ST, NN603E, SEATTLE, WA 98195(206) 598-0682 Get Directions Write a Review

NPPES record last updated: January 29, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 29, 2026, Oct 18, 2017 (2 updates tracked since 2017).

About Hamilton Tsang M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HAMILTON TSANG M.D. (NPI 1992062822) is an individual anatomic pathology & clinical pathology provider in Seattle, Washington, licensed in Washington (MD60775333) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Ochsner Medical Center Acute, and maintains a secondary practice location in New Orleans.

NPPES Registry Identity

NPI1992062822
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameHAMILTON TSANGCredential: M.D.
Location Address1959 NE PACIFIC ST, NN603ESeattle, WA 98195-4870
Mailing Address1959 Ne Pacific St Box 357110Seattle, WA 98195-7110 · (206) 598-0682
Phone(206) 598-0682
Sole ProprietorYes
Medical School CMSOtherGraduated 2012
Enumeration DateApril 17, 2012
Last NPPES UpdateJanuary 29, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 29, 2026
✔ NPI 1992062822 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Licenses✔ Licensed in WA · MD60775333✔ Licensed in LA · 346347✔ Licensed in CA · A138283
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
1959 NE PACIFIC ST, Seattle, WA 98195
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Secondary Practice Location 1

Location 11514 Jefferson HwyNew Orleans, LA 70121-2429 · Phone (504) 842-4000

Other Identifiers 2

Other1992062822WA · Medicare Pin
Medicaid1992062822WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Hamilton Tsang M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID42582942
PECOS Enrollment IDI20251211004028
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Blood bank physician services for cross match and/or evaluation and written report 86077
Blood bank physician services for cross match involve testing your blood against donor blood to ensure compatibility before a transfusion. The evaluation includes a detailed analysis of your blood type and antibodies. A written report will be provided, summarizing the findings.
38 services34 patients
Blood bank physician services for investigation of transfusion reaction with written report 86078
This service involves a blood bank doctor examining a patient's reaction to a blood transfusion. The doctor will conduct tests to identify the cause and provide a written report detailing the findings and recommendations for future care.
28 services25 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ochsner Medical Center Acute

Acute Care Hospitals · New Orleans, LA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190036
Location1516 Jefferson HwyNew Orleans, LA 70121 · Jefferson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98195 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality73.95
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LEONIE A NEVILLE PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1959 NE PACIFIC ST
SEATTLE, WA 98195
King County (206) 598-4874
ALISA BETH KACHIKIS M.D.
Obstetrics & Gynecology (Maternal & Fetal Medicine)
1959 NE PACIFIC ST, 3RD FLOOR SW 350
SEATTLE, WA 98195
King County (206) 598-4070
MS. MARY PATRICIA DODGE MS, OTR/L
Occupational Therapist
1959 NE PACIFIC ST, MAILBOX 356490
SEATTLE, WA 98195
King County (206) 598-4830
RIKA SHIRAKAWA M.D.
Ophthalmology
1959 NE PACIFIC ST, BOX 365485
SEATTLE, WA 98195
King County (206) 558-9616
VEDA TSOI M.D.
Anesthesiology
1959 NE PACIFIC ST
SEATTLE, WA 98195
King County (801) 556-7628
KATHRYN TAMURA PHARM.D.
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1959 NE PACIFIC ST, BOX 356015
SEATTLE, WA 98195
King County (206) 598-6060
DR. MARK ROBERT, MICHAEL KILGORE M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
1959 NE PACIFIC ST, BOX 356100
SEATTLE, WA 98195
King County (206) 598-1821
DR. SERKAN MEHMET SAHIN M.D.
Hospitalist
1959 NE PACIFIC ST
SEATTLE, WA 98195
King County (206) 543-6420

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hamilton Tsang's NPI number?

The NPI number for Hamilton Tsang is 1992062822. It was assigned to this individual provider in the NPPES registry on April 17, 2012.

Where is Hamilton Tsang located?

Hamilton Tsang practices at 1959 NE Pacific St Nn603e, Seattle, WA 98195. The listed phone number is (206) 598-0682.

What is Hamilton Tsang's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Hamilton Tsang enrolled in Medicare?

Yes. Hamilton Tsang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Hamilton Tsang affiliated with any hospitals?

According to CMS data, Hamilton Tsang is affiliated with Ochsner Medical Center Acute.

When was this NPI record last updated?

The NPPES record for Hamilton Tsang was last updated on January 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.