Individual provider

Anna Grills, N.P.

Psychiatric/Mental Health Nurse Practitioner Family Nurse Practitioner

Anna Grills, N.P. is a Psychiatric/Mental Health Nurse Practitioner in Kailua, HI, registered under NPI 1649549924. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 970 N KALAHEO AVE # 214, Kailua, HI 96734. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

970 N KALAHEO AVE # 214, Kailua, HI 96734 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
1416 HI Psychiatric/Mental Health Nurse… primary
1416 HI Family Nurse Practitioner

This provider holds licence 1416 issued in HI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)

This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.

What Psychiatric/Mental Health covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0808X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Psychiatric/Mental Health

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363LP0808X Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health 1416 HI primary
363LF0000X Family Nurse Practitioner Family 1416 HI

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1649549924 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateDec 15, 2011
Last updatedFeb 12, 2026
StatusActive
Sole proprietorNo
GenderFemale
CredentialN.P.
Practice address 970 N KALAHEO AVE # 214
Kailua, HI 96734
(805) 242-3408
Mailing address 1154 ULUOPIHI LOOP
Kailua, HI 96734
Other names Anna Holt Former Legal Business Name
This record was updated on Feb 12, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1649549924 passes the NPI check digit test The final digit 4 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 6 4 9 5 4 9 9 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 8 9 1 4 9 9 4

Sum = 76 · next multiple of 10 = 80 · check digit = 4 · actual last digit = 4

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1649549924?
NPI 1649549924 is the National Provider Identifier assigned to Anna Grills, N.P. in Kailua, HI. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Psychiatric/Mental Health cover?
Definition to come...
How do I contact Anna Grills, N.P.?
The phone number on file with NPPES is (805) 242-3408, last updated Feb 12, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Is NPI 1649549924 a valid number?
Yes. 1649549924 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.