Individual provider

Frederick Stephens, M.D.

Neurological Surgery Physician Medicare enrolled

Frederick Stephens, M.D. is a Neurological Surgery Physician in Tacoma, WA, registered under NPI 1306005988. 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 MADIGAN ARMY MEDICAL CTR 9040 JACSKON AVE, Tacoma, WA 98431. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

MADIGAN ARMY MEDICAL CTR 9040 JACSKON AVE, Tacoma, WA 98431 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
01057415A IN Neurological Surgery Physician primary
C54754 CA Neurological Surgery Physician
MD60302866 WA Neurological Surgery Physician

Licences are recorded in 3 states: IN, CA, WA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Neurosurgery
PAC ID
9133397920

Enrolled in Medicare 4 times, across 4 states:

StateEnrollment IDProvider type
Washington I20130820001110 Practitioner - Neurosurgery
Indiana I20190710000873 Practitioner - Neurology
Pennsylvania I20210811000149 Practitioner - Neurosurgery
Virginia I20250701004297 Practitioner - Neurosurgery

Medicare enrolment is recorded as approved under the provider type Practitioner - Neurosurgery. There are 4 separate enrolment records across 4 states (WA, IN, PA, VA). 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 3 states

This provider holds licences in 3 states: California, Indiana and Washington. The practice address on file is in Tacoma, WA, 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
Licence
C54754
Specialty
Neurological Surgery Physician
Verify with the CA board →
IN Indiana
Licence
01057415A
Specialty
Neurological Surgery Physician
Verify with the IN board →
WA Washington practice address
Licence
MD60302866
Specialty
Neurological Surgery Physician
Verify with the WA 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 Neurological Surgery covers

A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution. NUCC Health Care Provider Taxonomy, code 207T00000X
Allopathic & Osteopathic Physicians Neurological Surgery

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207T00000X Neurological Surgery Physician 01057415A IN primary
207T00000X Neurological Surgery Physician C54754 CA
207T00000X Neurological Surgery Physician MD60302866 WA

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.

NPI1306005988 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJun 9, 2008
Last updatedMar 2, 2023
StatusActive
Sole proprietorYes
CredentialM.D.
Practice address MADIGAN ARMY MEDICAL CTR
9040 JACSKON AVE
Tacoma, WA 98431
(253) 968-1374
The last update on file is Mar 2, 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

1306005988 passes the NPI check digit test The final digit 8 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 3 0 6 0 0 5 9 8
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 3 0 6 0 0 1 9 7

Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8

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 1306005988?
NPI 1306005988 is the National Provider Identifier assigned to Frederick Stephens, M.D. in Tacoma, WA. 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 Neurological Surgery Physician cover?
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and…
How do I contact Frederick Stephens, M.D.?
The phone number on file with NPPES is (253) 968-1374, last updated Mar 2, 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 Frederick Stephens, M.D. 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 1306005988 a valid number?
Yes. 1306005988 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.