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X-RAY MEDICAL GROUP RADIATION ONCOLOGY INC
NPI 1790724565
Radiology - Radiation Oncology in La Mesa, CA

Active since June 06, 2006
5555 GROSSMONT CENTER DR, LA MESA, CA 91942(619) 740-4500(619) 740-8499 Get Directions Write a Review

NPPES record last updated: February 17, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 14, 2022, Feb 26, 2021, Feb 11, 2020 and 1 more (4 updates tracked since 2019).

About X-ray Medical Group Radiation Oncology Inc NPPES

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

X-RAY MEDICAL GROUP RADIATION ONCOLOGY INC (NPI 1790724565) is a healthcare organization registered as a radiation oncology in La Mesa, California and active in the NPI registry since June 2006. The organization maintains 2 additional practice locations and lists Kelly Dewitt, Authorized Official, as its authorized official.

NPPES Registry Identity

NPI1790724565
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NameX-RAY MEDICAL GROUP RADIATION ONCOLOGY INC
Location Address5555 GROSSMONT CENTER DRLa Mesa, CA 91942-3019
Mailing AddressPo Box 509015, Dept 338San Diego, CA 92150-9015
Phone(619) 740-4500
Fax(619) 740-8499
Organization SubpartNo
Authorized OfficialKelly DewittAuthorized Official · (619) 740-4500
Enumeration DateJune 6, 2006
Last NPPES UpdateFebruary 17, 20264 updates tracked since enumeration
NPPES CertifiedFebruary 17, 2026
✔ NPI 1790724565 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
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.
5555 GROSSMONT CENTER DR, La Mesa, CA 91942
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1769 Medical Center CtChula Vista, CA 91911-6602 · Phone (619) 502-5851 · Fax (619) 502-5865
Location 27901 Frost StSan Diego, CA 92123-2701 · Phone (858) 939-5010 · Fax (858) 939-5021

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 MULTIPLE 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)

X-ray Medical Group Radiation Oncology Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to X-Ray Medical Group Radiation Oncology Inc, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 7 within 10 miles. They are listed nearest first.

Clinicians, nearest first (10)

Kelly Dewitt, MD
Radiation Oncology
NPI 1184668741
5555 GROSSMONT CENTER DR
La Mesa, CA 91942
(619) 740-4500
✔ PECOS✔ Accepts MedicareSame address
Sunanda Pejavar, M.D.
Radiation Oncology
NPI 1912232513
5555 GROSSMONT CENTER DR
La Mesa, CA 91942
(619) 740-4500
✔ PECOS✔ Accepts MedicareSame address
Barry Uhl, MD
Radiation Oncology
NPI 1811936693
5555 GROSSMONT CENTER DR
La Mesa, CA 91942
(619) 740-4500
✔ PECOS✔ Accepts MedicareSame address
Lori Coleman, MD
Radiation Oncology
NPI 1053348920
7901 FROST ST
San Diego, CA 92123
(858) 939-5010
✔ PECOS✔ Accepts Medicare8.7 mi
Croix Fossum, M.D.
Radiation Oncology
NPI 1104351006
7901 FROST ST
San Diego, CA 92123
(858) 939-5010
✔ PECOS✔ Accepts Medicare8.7 mi
Siavash Jabbari, MD
Radiation Oncology
NPI 1720314107
7901 FROST ST
San Diego, CA 92123
(858) 939-5010
✔ PECOS✔ Accepts Medicare8.7 mi
Geoffrey Weinstein, MD
Radiation Oncology
NPI 1841233947
3075 HEALTH CENTER DRIVE LEVEL 0
San Diego, CA 92123
(858) 939-5010
✔ PECOS8.7 mi
Andrew Bruggeman, M.D.
Radiation Oncology
NPI 1790049591
769 MEDICAL CENTER CT
Chula Vista, CA 91911
(619) 502-5851
✔ PECOS✔ Accepts Medicare11 mi
Ruben Carmona, MD
Radiation Oncology
NPI 1275929242
769 MEDICAL CENTER CT
Chula Vista, CA 91911
(619) 502-5851
✔ PECOS✔ Accepts Medicare11 mi
Paul Volpp, MD
Radiation Oncology
NPI 1225186232
2125 CITRICADO PKWY, #110 DEPT OF RADIATION ONCOLOGY
Escondido, CA 92029
(760) 739-3371
✔ PECOS✔ Accepts Medicare

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 X-Ray Medical Group Radiation Oncology Inc's NPI number?

The NPI number for X-Ray Medical Group Radiation Oncology Inc is 1790724565. It was assigned to this organization in the NPPES registry on June 6, 2006.

Where is X-Ray Medical Group Radiation Oncology Inc located?

X-Ray Medical Group Radiation Oncology Inc is located at 5555 Grossmont Center Dr, La Mesa, CA 91942. The listed phone number is (619) 740-4500.

What is X-Ray Medical Group Radiation Oncology Inc's specialty?

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

Is X-Ray Medical Group Radiation Oncology Inc enrolled in Medicare?

Yes. X-Ray Medical Group Radiation Oncology Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through X-Ray Medical Group Radiation Oncology Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians, all in Radiation Oncology, reassign their Medicare billing to X-Ray Medical Group Radiation Oncology Inc. 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. Of these, 3 practice at this address and 7 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for X-Ray Medical Group Radiation Oncology Inc was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.