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CELLNETIX PATHOLOGY, PLLC
NPI 1598624207
Pathology - Anatomic Pathology & Clinical Pathology in Tucson, AZ

Active since January 19, 2026
1601 W SAINT MARYS RD, TUCSON, AZ 85745(253) 678-1357 Get Directions Write a Review

NPPES record last updated: February 26, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Cellnetix Pathology, Pllc NPPES

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

CELLNETIX PATHOLOGY, PLLC (NPI 1598624207) is a healthcare organization registered as an anatomic pathology & clinical pathology in Tucson, Arizona and active in the NPI registry since January 2026. The organization lists Byron Kaerstner, Cao, as its authorized official.

NPPES Registry Identity

NPI1598624207
Entity TypeOrganization
Primary Taxonomy207ZP0102X
Legal Business NameCELLNETIX PATHOLOGY, PLLC
Location Address1601 W SAINT MARYS RDTucson, AZ 85745-2623
Mailing Address12501 E Marginal Way S Ste 200Tukwila, WA 98168-5163 · (206) 575-6050
Phone(253) 678-1357
Organization SubpartNo
Authorized OfficialByron KaerstnerCao · (253) 678-1357
Enumeration DateJanuary 19, 2026
Last NPPES UpdateFebruary 26, 2026
NPPES CertifiedFebruary 26, 2026
✔ NPI 1598624207 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
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.
1601 W SAINT MARYS RD, Tucson, AZ 85745
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Other Identifiers 1

Medicaid1000170WA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cellnetix Pathology, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

19

Medicare enrollment records show 19 clinicians reassign Medicare billing to Cellnetix Pathology, PLLC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (19)

Eric Nguyen
Pathology
NPI 1487113791
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 353-1613
✔ PECOS✔ Accepts Medicare753 mi
William Simonson, MD PHD
Pathology
NPI 1306080262
315 MARTIN LUTHER KING JR WAY WESTERN WASHINGTON PATHOLOGY
Tacoma, WA 98405
(253) 403-1043
✔ PECOS✔ Accepts Medicare1,200 mi
Peter Benda, MD
Pathology
NPI 1740262807
12501 E MARGINAL WAY S STE 200
Tukwila, WA 98168
(844) 344-4209
✔ PECOS✔ Accepts Medicare1,209 mi
Dominique Coco, M.D.
Pathology
NPI 1467501908
12501 E MARGINAL WAY S STE 200
Tukwila, WA 98168
(206) 576-6050
✔ PECOS✔ Accepts Medicare1,209 mi
Chad Ellermeier, M.D.
Pathology
NPI 1720306012
12501 E MARGINAL WAY S STE 200
Tukwila, WA 98168
(206) 576-6050
✔ PECOS✔ Accepts Medicare1,209 mi
Kevin Long, M.D.
Pathology
NPI 1689747776
12501 E MARGINAL WAY S STE 200
Tukwila, WA 98168
(206) 576-6050
✔ PECOS✔ Accepts Medicare1,209 mi
Michael Peterson, M.D.
Pathology
NPI 1700087376
12501 E MARGINAL WAY S STE 200
Tukwila, WA 98168
(844) 344-4209
✔ PECOS✔ Accepts Medicare1,209 mi
Sandra White, M.D.
Pathology
NPI 1689866501
12501 E MARGINAL WAY S STE 200
Tukwila, WA 98168
(844) 344-4209
✔ PECOS✔ Accepts Medicare1,209 mi
Mingkui Chen, M.D., PH.D.
Pathology
NPI 1912122409
12501 E MARGINAL WAY S STE 200
Tukwila, WA 98168
(206) 576-6053
✔ PECOS✔ Accepts Medicare1,209 mi
Jessica Rogers, MD
Pathology
NPI 1487940540
12501 E MARGINAL WAY S STE 200
Tukwila, WA 98168
(844) 344-4209
✔ PECOS✔ Accepts Medicare1,209 mi
Shane Anderson, MD PHD
Pathology
NPI 1952383432
1001 SW KLICKITAT WAY 205
Seattle, WA 98134
(206) 622-7747
✔ PECOS✔ Accepts Medicare1,215 mi
Kenneth Meckler, MD
Pathology
NPI 1174505226
1001 KLICKITAT WAY SW #205
Seattle, WA 98134
(206) 622-7747
✔ PECOS✔ Accepts Medicare1,215 mi
Tracey Harbert, M.D.
Pathology
NPI 1215165394
1124 COLUMBIA ST SUITE 200
Seattle, WA 98104
(206) 576-6050
✔ PECOS✔ Accepts Medicare1,217 mi
Paul Edmonson, M.D., PH.D.
Pathology
NPI 1699729699
2111 N. NORTHGATE WAY #201
Seattle, WA 98133
(206) 365-5171
✔ PECOS✔ Accepts Medicare1,223 mi
Timothy Wade, MD
Pathology
NPI 1427115369
1800 NW MYHRE RD
Silverdale, WA 98383
(564) 240-0222
✔ PECOS✔ Accepts Medicare1,229 mi
Xiaotun Zhang, M.D.
Pathology
NPI 1518346857
3901 HOYT AVE
Everett, WA 98201
(425) 339-4246
✔ PECOS✔ Accepts Medicare1,235 mi
Barry Kahn, MD
Pathology
NPI 1124097233
1321 COLBY AVENUE
Everett, WA 98206
(425) 261-2000
✔ PECOS✔ Accepts Medicare1,237 mi
Francois Cady, MD
Pathology
NPI 1962423038
200 1ST ST SW
Rochester, MN 55905
(507) 284-2511
✔ PECOS✔ Accepts Medicare1,291 mi
Aaron Wagner, MD
Pathology
NPI 1447401096
87 W JERSEY ST SUITE 1
Orlando, FL 32806
(407) 422-1377
✔ PECOS✔ Accepts Medicare1,782 mi

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

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 Cellnetix Pathology, PLLC's NPI number?

The NPI number for Cellnetix Pathology, PLLC is 1598624207. It was assigned to this organization in the NPPES registry on January 19, 2026.

Where is Cellnetix Pathology, PLLC located?

Cellnetix Pathology, PLLC is located at 1601 W Saint Marys Rd, Tucson, AZ 85745. The listed phone number is (253) 678-1357.

What is Cellnetix Pathology, PLLC's specialty?

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

Is Cellnetix Pathology, PLLC enrolled in Medicare?

Yes. Cellnetix Pathology, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Cellnetix Pathology, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 19 clinicians, all in Pathology, reassign their Medicare billing to Cellnetix Pathology, PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Cellnetix Pathology, PLLC was last updated on February 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.