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

HANNA MARIA KNIHTILA MD, PHD
NPI 1619556313
Pediatrics - Pediatric Allergy/Immunology in Palo Alto, CA

Active since April 07, 2021PECOS Enrolled
725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 8, 2026, Apr 7, 2021 (2 updates tracked since 2021).

About Hanna Maria Knihtila Md, Phd NPPES

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

HANNA MARIA KNIHTILA MD, PHD (NPI 1619556313) is an individual pediatric allergy/immunology provider in Palo Alto, California, licensed in California (A195031) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1619556313
Entity TypeIndividualFemale
Primary Taxonomy2080P0201X
Provider Legal NameHANNA MARIA KNIHTILACredential: MD, PHD
Location Address725 WELCH RDPalo Alto, CA 94304-1601
Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000
Sole ProprietorNo
Enumeration DateApril 7, 2021
Last NPPES UpdateOctober 8, 20262 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1619556313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Allergy/ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0201X
License✔ Licensed in CA · A195031
Definition
A pediatrician who specializes in the diagnosis and treatment of allergies, allergic reactions, and immunologic diseases in children.
Also ListedPediatricsTaxonomy 208000000X · License A195031 (CA)
725 WELCH RD, Palo Alto, CA 94304

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hanna Maria Knihtila Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Occupational Therapist (Pediatrics)
725 WELCH RD
PALO ALTO, CA 94304
Nurse Practitioner (Neonatal)
725 WELCH RD
PALO ALTO, CA 94304
Pediatrics
725 WELCH RD
PALO ALTO, CA 94304
Anesthesiology (Pediatric Anesthesiology)
725 WELCH RD
PALO ALTO, CA 94304
Pediatrics (Pediatric Hematology-Oncology)
725 WELCH RD
PALO ALTO, CA 94304
Occupational Therapist
725 WELCH RD
PALO ALTO, CA 94304
Nurse Practitioner
725 WELCH RD
PALO ALTO, CA 94304
Hospitalist
725 WELCH RD
PALO ALTO, CA 94304

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 Hanna Knihtila's NPI number?

The NPI number for Hanna Knihtila is 1619556313. It was assigned to this individual provider in the NPPES registry on April 7, 2021.

Where is Hanna Knihtila located?

Hanna Knihtila practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.

What is Hanna Knihtila's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Allergy/Immunology, with taxonomy code 2080P0201X.

Is Hanna Knihtila enrolled in Medicare?

Yes. Hanna Knihtila is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Hanna Knihtila was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 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.