Individual provider

Michele Cathey, FNP

Acute Care Nurse Practitioner Medicare enrolled

Michele Cathey, FNP is an Acute Care Nurse Practitioner in San Francisco, CA, registered under NPI 1649261223.

Getting there

The practice address on file is 333 1ST ST STE A, San Francisco, CA 94105. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

333 1ST ST STE A, San Francisco, CA 94105 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
APRN11003503 FL Acute Care Nurse Practitioner
097006277N1 OR Acute Care Nurse Practitioner
95020407 CA Acute Care Nurse Practitioner primary
271036 AZ Acute Care Nurse Practitioner

Licences are recorded in 4 states: FL, OR, CA, AZ. 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
1254359276

Enrolled in Medicare 3 times, across 3 states:

StateEnrollment IDProvider type
Oregon I20051108001081 Practitioner - Nurse Practitioner
California I20241028000296 Practitioner - Nurse Practitioner
Florida I20251111003571 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 (OR, CA, FL). 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 4 states

This provider holds licences in 4 states: Arizona, California, Florida and Oregon. The practice address on file is in San Francisco, 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.

AZ Arizona
Licence
271036
Specialty
Acute Care Nurse Practitioner
Verify with the AZ board →
CA California practice address
Licence
95020407
Specialty
Acute Care Nurse Practitioner
Verify with the CA board →
FL Florida
Licence
APRN11003503
Specialty
Acute Care Nurse Practitioner
Verify with the FL board →
OR Oregon
Licence
097006277N1
Specialty
Acute Care Nurse Practitioner
Verify with the OR 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 Acute Care covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LA2100X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Acute Care

All registered taxonomy codes

This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363LA2100X Acute Care Nurse Practitioner Acute Care APRN11003503 FL
363LA2100X Acute Care Nurse Practitioner Acute Care 097006277N1 OR
363LA2100X Acute Care Nurse Practitioner Acute Care 95020407 CA primary
363LA2100X Acute Care Nurse Practitioner Acute Care 271036 AZ

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.

NPI1649261223 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateNov 2, 2005
Last updatedMar 16, 2026
StatusActive
Sole proprietorNo
GenderFemale
CredentialFNP
Practice address 333 1ST ST STE A
San Francisco, CA 94105
(888) 803-3370
Mailing address 11376 SE LINWOOD AVE
Milwaukie, OR 97222
Other identifiers 097006277N1 · Other (OR)
273828 · Medicaid (OR)
NP95020407 · Other (CA)
This record was updated on Mar 16, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1649261223 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 6 4 9 2 6 1 2 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 8 9 4 6 2 2 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 1649261223?
NPI 1649261223 is the National Provider Identifier assigned to Michele Cathey, FNP in San Francisco, 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 Acute Care cover?
Definition to come...
How do I contact Michele Cathey, FNP?
The phone number on file with NPPES is (888) 803-3370, last updated Mar 16, 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.
Does Michele Cathey, FNP 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 1649261223 a valid number?
Yes. 1649261223 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.