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DR. THOMAS C RAYSON M.D.
NPI 1649219130
Pathology - Anatomic Pathology & Clinical Pathology in Kailua Kona, HI

Active since June 06, 2006PECOS EnrolledAccepts Medicare Assignment
88.97/100
CMS Quality Rating
75-5915 WALUA RD, KAILUA KONA, HI 96740(808) 796-5624 Get Directions Write a Review

NPPES record last updated: November 15, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 15, 2024, Jul 13, 2022, May 24, 2021 (3 updates tracked since 2021).

About Dr. Thomas C Rayson M.d. NPPES

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

DR. THOMAS C RAYSON M.D. (NPI 1649219130) is an individual anatomic pathology & clinical pathology provider in Kailua Kona, Hawaii, licensed in Wisconsin (34555-20) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1649219130
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameDR. THOMAS C RAYSONCredential: M.D.
Location Address75-5915 WALUA RDKailua Kona, HI 96740-1375
Mailing Address82-5999 Coffee PlCaptain Cook, HI 96704-8258 · (920) 527-8817
Phone(808) 796-5624
Sole ProprietorYes
Medical School CMSUniversity Of South Carolina School Of MedicineGraduated 1992
Enumeration DateJune 6, 2006
Last NPPES UpdateNovember 15, 20243 updates tracked since enumeration
NPPES CertifiedNovember 15, 2024
✔ NPI 1649219130 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Licenses✔ Licensed in WI · 34555-20✔ Licensed in IL · 036172686
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.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 20808 (HI)
Also ListedGeneral PracticeTaxonomy 208D00000X · License MD-20808 (HI), 34555-20 (WI)
75-5915 WALUA RD, Kailua Kona, HI 96740
Open in Google Maps ↗

Secondary Practice Locations 3

Location 170-1019 Haukapila Stkealakelua, HI 96750 · Phone (808) 322-9311
Location 2900 Illinois AveStevens Point, WI 54481-3114 · Phone (715) 346-5000
Location 3300 Randall Rd # LlGeneva, IL 60134-4200 · Phone (630) 208-4201 · Fax (630) 208-3489

Other Identifiers 1

Medicaid32239100WI

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Aspirus Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas C Rayson 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 ID143311456
PECOS Enrollment IDI20241223000241
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.

Medicare Billing Reassignments

5

Medicare enrollment records show Thomas Rayson reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cascade Pathology Services, Corp
2,606 mi
Anatomic Pathology & Clinical Pathology
1225 NE 2ND AVE
Portland, OR 97232
  • Reassigned Medicare billing, Oregon enrollment
  • 27 clinicians in this Medicare group
NPI 1154465656 (503) 413-5049
Northwestern Medical Faculty Foundation
4,196 mi
Multi-Specialty
DEPT 5777
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 4,817 clinicians in this Medicare group
NPI 1346235314 (855) 694-2866
Rwjbh Emergency Medicine Associates, LLC
4,917 mi
Emergency Medicine
3 EXECUTIVE DR, STE 400
Somerset, NJ 08873
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,557 clinicians in this Medicare group
NPI 1912510041 (732) 867-9618
Rutgers Health-Rwj Pediatric Critical Care
4,921 mi
Anesthesiology
125 PATERSON ST STE 5123
New Brunswick, NJ 08901
  • Reassigned Medicare billing, New Jersey enrollment
  • 492 clinicians in this Medicare group
NPI 1063420776 (732) 235-7246
Rwjbh Observation Associates LLC
4,926 mi
Emergency Medicine
94 OLD SHORT HILLS RD
Livingston, NJ 07039
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,913 clinicians in this Medicare group
NPI 1760095806 (888) 724-7123

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
638 services349 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
118 services104 patients
Cell examination of specimen, selective cellular enhancement technique 88112
Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.
66 services56 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
32 services13 patients
Pathology examination of tissue using a microscope, moderately low complexity 88304
A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.
30 services28 patients
Screening cytopathology smears, cervical or vaginal, performed by automated system, with manual rescreening, requiring interpretation by physician G0141
This is a test where cells from the lower region of your body are collected and examined. An automated system initially screens the cells, but they are also manually checked. A doctor must interpret the results. This helps identify any abnormal cell changes early.
26 services26 patients

Hospital Affiliations CMS Care Compare 3

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

Northwestern Medicine Delnor Community Hospital

Acute Care Hospitals · Geneva, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140211
Location300 Randall RdGeneva, IL 60134 · Kane County
Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Robert Wood Johnson University Hospital

Acute Care Hospitals · New Brunswick, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310038
LocationOne Robert Wood Johnson PlaceNew Brunswick, NJ 08901 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96740 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
$136.68 typical visit price
range $60.53 – $180.05
Typical copayment $34.17 (range $15.13 – $45.01)
Most-billed visit code 99204
Established Patient
$105.65 typical visit price
range $20.09 – $147.56
Typical copayment $26.41 (range $5.02 – $36.89)
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.

88.97/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.89
Promoting Interoperability100
Improvement Activities40
Cost69.92

Other Providers at the Same Location NPPES

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

JELSA MARTICIO ISIDRO TRANSPORTATION
Non-emergency Medical Transport (VAN)
75-5915 WALUA RD
KAILUA KONA, HI 96740
Hawaii County (808) 936-6547

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 Thomas Rayson's NPI number?

The NPI number for Thomas Rayson is 1649219130. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Thomas Rayson located?

Thomas Rayson practices at 75-5915 Walua Rd, Kailua Kona, HI 96740. The listed phone number is (808) 796-5624.

What is Thomas Rayson's specialty?

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

Is Thomas Rayson enrolled in Medicare?

Yes. Thomas Rayson 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.

Which organizations bill Medicare for Thomas Rayson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Rayson reassigns Medicare benefits to 5 organizations: Cascade Pathology Services, Corp (Portland, OR), Northwestern Medical Faculty Foundation (Carol Stream, IL), Rwjbh Emergency Medicine Associates, LLC (Somerset, NJ), Rutgers Health-Rwj Pediatric Critical Care (New Brunswick, NJ) and Rwjbh Observation Associates LLC (Livingston, NJ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thomas Rayson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Rayson accept?

Health plans from Aspirus Health Plan list Thomas Rayson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Thomas Rayson affiliated with any hospitals?

According to CMS data, Thomas Rayson is affiliated with Northwestern Medicine Delnor Community Hospital, Northwestern Medicine Central Dupage Hospital and Robert Wood Johnson University Hospital.

When was this NPI record last updated?

The NPPES record for Thomas Rayson was last updated on November 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.