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PETER K. SIEN, MD, INC.
NPI 1063467033
Radiology - Radiation Oncology in Modesto, CA

Active since May 24, 2006
1316 NELSON AVE, MODESTO, CA 95350(209) 575-5870(209) 575-5872 Get Directions Write a Review

NPPES record last updated: May 12, 2015. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Peter K. Sien, Md, Inc. NPPES

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

PETER K. SIEN, MD, INC. (NPI 1063467033) is a healthcare organization registered as a radiation oncology in Modesto, California and active in the NPI registry since May 2006. The organization lists Peter K Sien, Physician Owner, as its authorized official.

NPPES Registry Identity

NPI1063467033
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NamePETER K. SIEN, MD, INC.
Location Address1316 NELSON AVEModesto, CA 95350-5341
Mailing Address1316 Nelson AveModesto, CA 95350-5341 · (209) 575-5870 · Fax (209) 575-5872
Phone(209) 575-5870
Fax(209) 575-5872
Organization SubpartNo
Authorized OfficialPeter K SienPhysician Owner · (209) 575-5870
Enumeration DateMay 24, 2006
Last NPPES UpdateMay 12, 2015
✔ NPI 1063467033 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
License✔ Licensed in CA · G32267
Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

1316 NELSON AVE, Modesto, CA 95350
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Other Identifiers 3

Medicaid00G322670CA
Medicare UPINA45079CA
Medicare PINZZZ30092Z

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

Other Providers at the Same Location NPPES 5

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

HEIDI O'DAY YEE N.P.
Nurse Practitioner (Family)
1316 NELSON AVE
MODESTO, CA 95350
Stanislaus County (209) 575-5870
DR. YU JB ZHANG PHD
Specialist
1316 NELSON AVE
MODESTO, CA 95350
Stanislaus County (209) 575-5870
PRIGGE RADIATION ONCOOLOGY MEDICAL GROUP
Radiology (Radiation Oncology)
1316 NELSON AVE
MODESTO, CA 95350
Stanislaus County (209) 575-5870
GENESISCARE USA OF CALIFORNIA A MEDICAL CORPORATION
Radiology (Radiation Oncology)
1316 NELSON AVE
MODESTO, CA 95350
Stanislaus County (209) 575-5870
DAVID N LOWTHER MD
Radiology (Radiation Oncology)
1316 NELSON AVE, CONTRACTING AND CREDENTIALING DEPT
MODESTO, CA 95350
Stanislaus County (209) 575-5870

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 Peter K. Sien, MD, Inc.'s NPI number?

The NPI number for Peter K. Sien, MD, Inc. is 1063467033. It was assigned to this organization in the NPPES registry on May 24, 2006.

Where is Peter K. Sien, MD, Inc. located?

Peter K. Sien, MD, Inc. is located at 1316 Nelson Ave, Modesto, CA 95350. The listed phone number is (209) 575-5870.

What is Peter K. Sien, MD, Inc.'s specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

When was this NPI record last updated?

The NPPES record for Peter K. Sien, MD, Inc. was last updated on May 12, 2015. NPI Profile syncs with the weekly NPPES data releases published by CMS.