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MATTHEW KILTHAU M.D.
NPI 1831456151
Psychiatry & Neurology - Psychiatry in San Luis Obispo, CA

Active since April 12, 2012PECOS Enrolled
956 WALNUT ST STE 200E, SAN LUIS OBISPO, CA 93401(805) 203-6474(877) 219-0743 Get Directions Write a Review

NPPES record last updated: February 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 18, 2019, Apr 3, 2019 (2 updates tracked since 2019).

About Matthew Kilthau M.d. NPPES

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

MATTHEW KILTHAU M.D. (NPI 1831456151) is an individual psychiatry provider in San Luis Obispo, California, licensed in California (A146050) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS and maintains a secondary practice location in Atascadero.

NPPES Registry Identity

NPI1831456151
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameMATTHEW KILTHAUCredential: M.D.
Location Address956 WALNUT ST STE 200ESan Luis Obispo, CA 93401-1707
Mailing Address956 Walnut St Ste 200eSan Luis Obispo, CA 93401-1707 · (805) 203-6474 · Fax (877) 219-0743
Phone(805) 203-6474
Fax(877) 219-0743
Sole ProprietorNo
Enumeration DateApril 12, 2012
Last NPPES UpdateFebruary 23, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 23, 2026
✔ NPI 1831456151 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in CA · A146050✔ Licensed in NY · 276841
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
956 WALNUT ST STE 200E, San Luis Obispo, CA 93401
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Secondary Practice Location 1

Location 110333 El Camino RealAtascadero, CA 93422-5808 · Phone (805) 468-2188

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Matthew Kilthau M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

4

Medicare enrollment records show Matthew Kilthau reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Matthew Kilthau MD Medical Corporation
Same address
Psychiatry
956 WALNUT ST STE 200
San Luis Obispo, CA 93401
  • Reassigned Medicare billing, California enrollment
NPI 1457867053 (805) 203-6474
Department Of State Hospitals
12 mi
Psychiatric Hospital
10333 EL CAMINO REAL
Atascadero, CA 93422
  • Reassigned Medicare billing, California enrollment
  • 755 clinicians in this Medicare group
NPI 1174573802 (805) 468-2000
The Unity Hospital Of Rochester
2,339 mi
Clinical Medical Laboratory
160 ELMGROVE PARK
Rochester, NY 14624
  • Reassigned Medicare billing, New York enrollment
  • 1,442 clinicians in this Medicare group
NPI 1720471246 (585) 426-1234
Blanton-Peale Institute
2,544 mi
Mental Health
7 WEST 30TH STREET, 9TH FLOOR
New York City, NY 10001
  • Reassigned Medicare billing, New York enrollment
  • 24 clinicians in this Medicare group
NPI 1225195787 (212) 725-7850

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93401 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
$178.89 typical visit price
range $59.84 – $178.89
Typical copayment $44.72 (range $14.96 – $44.72)
Most-billed visit code 99205
Established Patient
$74.24 typical visit price
range $19.70 – $146.55
Typical copayment $18.56 (range $4.92 – $36.63)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Matthew Kilthau's NPI number?

The NPI number for Matthew Kilthau is 1831456151. It was assigned to this individual provider in the NPPES registry on April 12, 2012.

Where is Matthew Kilthau located?

Matthew Kilthau practices at 956 Walnut St Ste 200E, San Luis Obispo, CA 93401. The listed phone number is (805) 203-6474.

What is Matthew Kilthau's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Matthew Kilthau enrolled in Medicare?

Yes. Matthew Kilthau is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Matthew Kilthau's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Kilthau reassigns Medicare benefits to 4 organizations: Matthew Kilthau MD Medical Corporation (San Luis Obispo, CA), Department Of State Hospitals (Atascadero, CA), The Unity Hospital Of Rochester (Rochester, NY) and Blanton-Peale Institute (New York City, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Kilthau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Matthew Kilthau was last updated on February 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.