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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. KAITLIN CLAIRE MACHINA MD
NPI 1104611581
Emergency Medicine in Palo Alto, CA

Active since April 14, 2025
1199 WELCH RD, PALO ALTO, CA 94304(650) 723-5111 Get Directions Write a Review

NPPES record last updated: August 16, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 16, 2026, Jul 25, 2026 (2 updates tracked since 2026).

About Dr. Kaitlin Claire Machina Md NPPES

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

DR. KAITLIN CLAIRE MACHINA MD (NPI 1104611581) is an individual emergency medicine provider in Palo Alto, California, licensed in California (PTL19204) and active in the NPI registry since April 2025.

NPPES Registry Identity

NPI1104611581
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. KAITLIN CLAIRE MACHINACredential: MD
Location Address1199 WELCH RDPalo Alto, CA 94304-1905
Mailing Address900 Welch Rd Ste 350Palo Alto, CA 94304-1807
Phone(650) 723-5111
Sole ProprietorNo
Enumeration DateApril 14, 2025
Last NPPES UpdateAugust 16, 20262 updates tracked since enumeration
NPPES CertifiedAugust 16, 2026
✔ NPI 1104611581 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 · PTL19204
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.
1199 WELCH RD, Palo Alto, CA 94304
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Other Providers at the Same Location NPPES 20

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

ELISSA MAUCK KLEIN MD
Student in an Organized Health Care Education/Training Program
1199 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-5111
BROCK ALLEN BURNETT
Student in an Organized Health Care Education/Training Program
1199 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-5111
STEPHEN HOEFLER
Registered Nurse
1199 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-5111
SUMMER GHAITH MD, JD
Emergency Medicine
1199 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-5111
CONRAD WILLIAM SAFRANEK MD
Student in an Organized Health Care Education/Training Program
1199 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-0121
DR. SAMMY MEHTAR MD, MS
Emergency Medicine
1199 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-6576
ERICA NICOLE SILVA
Student in an Organized Health Care Education/Training Program
1199 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-5111
RYAN AUSTIN LACINSKI
Student in an Organized Health Care Education/Training Program
1199 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-5111

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 Kaitlin Machina's NPI number?

The NPI number for Kaitlin Machina is 1104611581. It was assigned to this individual provider in the NPPES registry on April 14, 2025.

Where is Kaitlin Machina located?

Kaitlin Machina practices at 1199 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 723-5111.

What is Kaitlin Machina'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 Kaitlin Machina was last updated on August 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 days 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.