1. Home
  2. Directory
  3. California
  4. La Mesa
  5. Emergency Medicine
  6. NPI Profile

JOSEPH WITKIN MD
NPI 1144258963
Emergency Medicine in La Mesa, CA

Active since June 29, 2006
5555 GROSSMONT CENTER DRIVE, LA MESA, CA 91942(619) 644-4401 Get Directions Write a Review

NPPES record last updated: December 15, 2009. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Joseph Witkin Md NPPES

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

JOSEPH WITKIN MD (NPI 1144258963) is an individual emergency medicine provider in La Mesa, California, licensed in California (G32398) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1144258963
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameJOSEPH WITKINCredential: MD
Location Address5555 GROSSMONT CENTER DRIVELa Mesa, CA 91942-3019
Mailing AddressPo Box 12170Westminster, CA 92685-2170 · (877) 818-6102
Phone(619) 644-4401
Sole ProprietorNo
Enumeration DateJune 29, 2006
Last NPPES UpdateDecember 15, 2009
✔ NPI 1144258963 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · G32398
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
5555 GROSSMONT CENTER DRIVE, La Mesa, CA 91942
Open in Google Maps ↗

Other Identifiers 4

Medicare PINWG32398GCA
Medicare UPINA45137
Medicaid00G323980CA
Medicare PINHG32398CA

Other Providers at the Same Location NPPES 7

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

DUSTIN TRONG NGUYEN PHARM.D.
Pharmacist
5555 GROSSMONT CENTER DRIVE, A217
LA MESA, CA 91942
San Diego County (619) 740-4451
HUNG VU MD
Emergency Medicine
5555 GROSSMONT CENTER DRIVE
LA MESA, CA 91942
San Diego County (619) 740-4405
DONALD J BUTERA MD
Emergency Medicine
5555 GROSSMONT CENTER DRIVE
LA MESA, CA 91942
San Diego County (619) 644-4401
KEVIN M. KELLY JR.
Emergency Medicine
5555 GROSSMONT CENTER DRIVE
LA MESA, CA 91942
San Diego County (619) 644-4401
KELLIE FREEBORN NP
Emergency Medicine
5555 GROSSMONT CENTER DRIVE
LA MESA, CA 91942
San Diego County (619) 644-4401
SUSAN VAN NORDHEIM NP
Nurse Practitioner
5555 GROSSMONT CENTER DRIVE
LA MESA, CA 91942
San Diego County (619) 740-6000
WILLIAM J LINNIK MD
Emergency Medicine
5555 GROSSMONT CENTER DRIVE
LA MESA, CA 91942
San Diego County (619) 644-4401

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 Joseph Witkin's NPI number?

The NPI number for Joseph Witkin is 1144258963. It was assigned to this individual provider in the NPPES registry on June 29, 2006.

Where is Joseph Witkin located?

Joseph Witkin practices at 5555 Grossmont Center Drive, La Mesa, CA 91942. The listed phone number is (619) 644-4401.

What is Joseph Witkin's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

When was this NPI record last updated?

The NPPES record for Joseph Witkin was last updated on December 15, 2009. NPI Profile syncs with the weekly NPPES data releases published by CMS.