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HEATHER ANN DAY APNP
NPI 1265767487
Nurse Practitioner - Family in Centralia, WA

Active since October 06, 2009PECOS EnrolledAccepts Medicare Assignment
1800 COOKS HILL RD STE G, CENTRALIA, WA 98531(360) 736-3042(360) 736-2967 Get Directions Write a Review

NPPES record last updated: June 16, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Heather Ann Day Apnp NPPES

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

HEATHER ANN DAY APNP (NPI 1265767487) is an individual family provider in Centralia, Washington, licensed in Washington (AP60466571) and active in the NPI registry since October 2009. She is enrolled in Medicare PECOS, is affiliated with Providence Centralia Hospital, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1265767487
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameHEATHER ANN DAYCredential: APNP
Location Address1800 COOKS HILL RD STE GCentralia, WA 98531-9162
Mailing Address2690 Ne Kresky AveChehalis, WA 98532-2412 · (360) 330-9595 · Fax (360) 330-9560
Phone(360) 736-3042
Fax(360) 736-2967
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateOctober 6, 2009
Last NPPES UpdateJune 16, 2025
NPPES CertifiedJune 16, 2025
✔ NPI 1265767487 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in WA · AP60466571
1800 COOKS HILL RD STE G, Centralia, WA 98531
Open in Google Maps ↗

Other Names 1

Former Name (1)Heather A Lassila Arnp

Other Identifiers 1

Medicaid2037352WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Heather Ann Day Apnp 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 ID7113064940
PECOS Enrollment IDI20140818002092
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.

Areas of Expertise CMS Part B claims 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
48 services48 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
40 services38 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence Centralia Hospital

Acute Care Hospitals · Centralia, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number500019
Location914 S Scheuber RoadCentralia, WA 98531 · Lewis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98531 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

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

MICHELLE STOVER ARNP
Nurse Practitioner (Family)
1800 COOKS HILL RD STE G
CENTRALIA, WA 98531
Lewis County (360) 736-3042
AMY M MILLS RN
Registered Nurse
1800 COOKS HILL RD STE G
CENTRALIA, WA 98531
Lewis County (360) 736-3042
AUSTIN JAMES CHAMBERLAIN PA-C
Physician Assistant
1800 COOKS HILL RD STE G
CENTRALIA, WA 98531
Lewis County (360) 736-3042
GLENN SONS JR. PA-C
Physician Assistant
1800 COOKS HILL RD STE G
CENTRALIA, WA 98531
Lewis County (360) 736-3042
LEWIS COUNTY COMMUNITY HEALTH SERVICES
Pharmacy
1800 COOKS HILL RD STE G
CENTRALIA, WA 98531
Lewis County (360) 996-3673
MRS. NICOLE MARIE ALLEN ARNP
Nurse Practitioner (Family)
1800 COOKS HILL RD STE G
CENTRALIA, WA 98531
Lewis County (360) 736-3042

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 Heather Day's NPI number?

The NPI number for Heather Day is 1265767487. It was assigned to this individual provider in the NPPES registry on October 6, 2009. The provider is also known as Heather A Lassila Arnp.

Where is Heather Day located?

Heather Day practices at 1800 Cooks Hill Rd Ste G, Centralia, WA 98531. The listed phone number is (360) 736-3042.

What is Heather Day's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Heather Day enrolled in Medicare?

Yes. Heather Day 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.

What insurance does Heather Day accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Heather Day as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Heather Day affiliated with any hospitals?

According to CMS data, Heather Day is affiliated with Providence Centralia Hospital.

When was this NPI record last updated?

The NPPES record for Heather Day was last updated on June 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.