Individual provider

Selina Clow, NP-C

Family Nurse Practitioner Medicare enrolled

Selina Clow, NP-C is a Family Nurse Practitioner in Arcata, CA, registered under NPI 1821371923. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

The practice address on file is 770 10TH ST, Arcata, CA 95521. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

770 10TH ST, Arcata, CA 95521 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
ARNP9334752 FL Family Nurse Practitioner primary
95012186 CA Family Nurse Practitioner

Licences are recorded in 2 states: FL, CA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
8022278399

Enrolled in Medicare 3 times, across 3 states:

StateEnrollment IDProvider type
Florida I20120323000028 Practitioner - Nurse Practitioner
Texas I20210526002718 Practitioner - Nurse Practitioner
California I20240325000771 Practitioner - Nurse Practitioner

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. There are 3 separate enrolment records across 3 states (FL, TX, CA). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 2 states

This provider holds licences in 2 states: California and Florida. The practice address on file is in Arcata, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

CA California practice address
Licence
95012186
Specialty
Family Nurse Practitioner
Verify with the CA board →
FL Florida
Licence
ARNP9334752
Specialty
Family Nurse Practitioner
Verify with the FL board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Family covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Family

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
363LF0000X Family Nurse Practitioner Family ARNP9334752 FL primary
363LF0000X Family Nurse Practitioner Family 95012186 CA

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.

NPI1821371923 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateSep 25, 2011
Last updatedFeb 4, 2023
StatusActive
Sole proprietorYes
CredentialNP-C
Practice address 770 10TH ST
Arcata, CA 95521
(707) 826-8610
Mailing address 1107 KEY PLZ # 417
Key West, FL 33040
The last update on file is Feb 4, 2023. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1821371923 passes the NPI check digit test The final digit 3 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 8 2 1 3 7 1 9 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 8 4 1 6 7 2 9 4

Sum = 67 · next multiple of 10 = 70 · check digit = 3 · actual last digit = 3

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 1821371923?
NPI 1821371923 is the National Provider Identifier assigned to Selina Clow, NP-C in Arcata, CA. 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 Family cover?
Definition to come...
How do I contact Selina Clow, NP-C?
The phone number on file with NPPES is (707) 826-8610, last updated Feb 4, 2023. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Selina Clow, NP-C accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1821371923 a valid number?
Yes. 1821371923 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.