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KATHRYN ASHLEY HAWRYLYSHYN MD
NPI 1144457516
Anesthesiology in Palo Alto, CA

Active since June 12, 2009PECOS EnrolledAccepts Medicare Assignment
795 EL CAMINO REAL, PALO ALTO, CA 94301(650) 853-2894 Get Directions Write a Review

NPPES record last updated: May 29, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 29, 2020, Dec 31, 2015 (2 updates tracked since 2015).

About Kathryn Ashley Hawrylyshyn Md NPPES

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

KATHRYN ASHLEY HAWRYLYSHYN MD (NPI 1144457516) is an individual anesthesiology provider in Palo Alto, California, licensed in California (A113687) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1144457516
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameKATHRYN ASHLEY HAWRYLYSHYNCredential: MD
Location Address795 EL CAMINO REALPalo Alto, CA 94301-2302
Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (650) 853-2894
Phone(650) 853-2894
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateJune 12, 2009
Last NPPES UpdateMay 29, 20202 updates tracked since enumeration
NPPES CertifiedMay 29, 2020
✔ NPI 1144457516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A113687
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
795 EL CAMINO REAL, Palo Alto, CA 94301
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Kathryn Ashley Hawrylyshyn Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3971732694
PECOS Enrollment IDI20140129000891
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.

Medicare Billing Reassignment

Medicare enrollment records show Kathryn Hawrylyshyn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation
Same address
Multi-Specialty
795 EL CAMINO REAL
Palo Alto, CA 94301
NPI 1013950807 (650) 321-4121

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
74 services74 patients

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.

DR. SHIRA BETH LIPTON M.D.
Dermatology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2982
DR. KATHERINE A KWIATKOWSKI MD
Psychiatry & Neurology (Psychiatry)
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2904
MS. HEATHER HUGHES ROSE PT
Physical Therapist
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (707) 280-2417
CRYSTAL TSAI MS, RD
Dietitian, Registered
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2961
RUTH ROTHMAN MD
Dermatology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-4865
WINONA TAN M.D.
Obstetrics & Gynecology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2917
SHERRY HUANG MD
Family Medicine
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2984
DR. JULIA MCKENZIE GABHART M.D.
Pediatrics
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 321-4121

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 Kathryn Hawrylyshyn's NPI number?

The NPI number for Kathryn Hawrylyshyn is 1144457516. It was assigned to this individual provider in the NPPES registry on June 12, 2009.

Where is Kathryn Hawrylyshyn located?

Kathryn Hawrylyshyn practices at 795 El Camino Real, Palo Alto, CA 94301. The listed phone number is (650) 853-2894.

What is Kathryn Hawrylyshyn's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Kathryn Hawrylyshyn enrolled in Medicare?

Yes. Kathryn Hawrylyshyn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Kathryn Hawrylyshyn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Hawrylyshyn reassigns Medicare benefits to Sutter Bay Medical Foundation (Palo Alto, CA). The 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 Kathryn Hawrylyshyn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Kathryn Hawrylyshyn was last updated on May 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.