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MARK KOESTER RMSK
NPI 1720593098
Radiology - Diagnostic Ultrasound in San Diego, CA

Active since December 08, 2017
6699 ALVARADO RD STE 2302, SAN DIEGO, CA 92120(949) 313-7736(949) 313-7737 Get Directions Write a Review

NPPES record last updated: May 7, 2018. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 7, 2018, Dec 8, 2017 (2 updates tracked since 2017).

About Mark Koester Rmsk NPPES

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

MARK KOESTER RMSK (NPI 1720593098) is an individual diagnostic ultrasound provider in San Diego, California, licensed in California (146834) and active in the NPI registry since December 2017.

NPPES Registry Identity

NPI1720593098
Entity TypeIndividualMale
Primary Taxonomy2085U0001X
Provider Legal NameMARK KOESTERCredential: RMSK
Location Address6699 ALVARADO RD STE 2302San Diego, CA 92120-5241
Mailing AddressPo Box 80218Rancho Santa Margarita, CA 92688-0218 · (949) 313-7736 · Fax (949) 313-7737
Phone(949) 313-7736
Fax(949) 313-7737
Sole ProprietorYes
Enumeration DateDecember 8, 2017
Last NPPES UpdateMay 7, 20182 updates tracked since enumeration
✔ NPI 1720593098 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyRadiology · Diagnostic UltrasoundAllopathic & Osteopathic Physicians
Taxonomy Code2085U0001X
License✔ Licensed in CA · 146834
Definition

A Radiology doctor of Osteopathy that specializes in Diagnostic Ultrasound.

Also ListedSpecialist/Technologist Cardiovascular · SonographyTaxonomy 246XS1301X
Also ListedSpecialist/Technologist, Other · ElectroneurodiagnosticTaxonomy 246ZE0600X
Also ListedRadiologic Technologist · SonographyTaxonomy 2471S1302X
Also ListedRadiologic Technologist · Vascular SonographyTaxonomy 2471V0105X
6699 ALVARADO RD STE 2302, San Diego, CA 92120
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Other Providers at the Same Location NPPES

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

INNOVATIVE ULTRASOUND IMAGING, INC.
Radiologic Technologist (Sonography)
6699 ALVARADO RD STE 2302
SAN DIEGO, CA 92120
San Diego County (949) 313-7736

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 Mark Koester's NPI number?

The NPI number for Mark Koester is 1720593098. It was assigned to this individual provider in the NPPES registry on December 8, 2017.

Where is Mark Koester located?

Mark Koester practices at 6699 Alvarado Rd Ste 2302, San Diego, CA 92120. The listed phone number is (949) 313-7736.

What is Mark Koester's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Ultrasound, with taxonomy code 2085U0001X.

When was this NPI record last updated?

The NPPES record for Mark Koester was last updated on May 7, 2018. NPI Profile syncs with the weekly NPPES data releases published by CMS.