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DR. RALPH LISSAUR M.D.
NPI 1245287960
Psychiatry & Neurology - Psychiatry in Irvine, CA

Active since May 28, 2006PECOS EnrolledAccepts Medicare Assignment
14252 CULVER DR, A-255, IRVINE, CA 92604(949) 280-9647(949) 581-0911 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Ralph Lissaur M.d. NPPES

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

DR. RALPH LISSAUR M.D. (NPI 1245287960) is an individual psychiatry provider in Irvine, California, licensed in California (A88975) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Arizona College Of Medicine (2003).

NPPES Registry Identity

NPI1245287960
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. RALPH LISSAURCredential: M.D.
Location Address14252 CULVER DR, A-255Irvine, CA 92604-0317
Mailing Address14252 Culver Dr, A-255Irvine, CA 92604-0317 · (949) 280-9647 · Fax (949) 581-0911
Phone(949) 280-9647
Fax(949) 581-0911
Sole ProprietorYes
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2003
Enumeration DateMay 28, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1245287960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A88975
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.
14252 CULVER DR, Irvine, CA 92604
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ralph Lissaur M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1557318870
PECOS Enrollment IDI20050407000879
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 Ralph Lissaur reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of Riverside
16 mi
Community/Behavioral Health
2813 S MAIN ST FL 2
Corona, CA 92882
  • Reassigned Medicare billing, California enrollment
  • 336 clinicians in this Medicare group
NPI 1205090453 (951) 738-2400
Archis Desai MD Inc.
41 mi
Internal Medicine
1030 NEVADA ST STE 101
Redlands, CA 92374
  • Reassigned Medicare billing, California enrollment
  • 6 clinicians in this Medicare group
NPI 1639696412 (909) 966-5500
David Desai MD Inc
41 mi
Psychiatry
1030 NEVADA ST STE 101
Redlands, CA 92374
  • Reassigned Medicare billing, California enrollment
  • 15 clinicians in this Medicare group
NPI 1174901128 (909) 966-5500
County Of Humboldt
601 mi
Community/Behavioral Health
720 WOOD ST
Eureka, CA 95501
  • Reassigned Medicare billing, California enrollment
  • 65 clinicians in this Medicare group
NPI 1033300306 (707) 268-2900

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

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
340 services42 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
72 services24 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
32 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92604 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SPRY TRANSPORT INC
Non-emergency Medical Transport (VAN)
14252 CULVER DR, SUITE # A-253
IRVINE, CA 92604
Orange County (949) 735-4400
ALPHA TRANSPORTATION, LLC
Non-emergency Medical Transport (VAN)
14252 CULVER DR, STE A
IRVINE, CA 92604
Orange County (714) 769-0708

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 Ralph Lissaur's NPI number?

The NPI number for Ralph Lissaur is 1245287960. It was assigned to this individual provider in the NPPES registry on May 28, 2006.

Where is Ralph Lissaur located?

Ralph Lissaur practices at 14252 Culver Dr A-255, Irvine, CA 92604. The listed phone number is (949) 280-9647.

What is Ralph Lissaur's specialty?

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

Is Ralph Lissaur enrolled in Medicare?

Yes. Ralph Lissaur is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Ralph Lissaur's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ralph Lissaur reassigns Medicare benefits to 4 organizations: County Of Riverside (Corona, CA), Archis Desai MD Inc. (Redlands, CA), David Desai MD Inc (Redlands, CA) and County Of Humboldt (Eureka, CA). 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 Ralph Lissaur'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 Ralph Lissaur was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.