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DR. LOUISA RUTH STEIGER M.D.
NPI 1417106204
Psychiatry & Neurology - Psychiatry in San Diego, CA

Active since September 16, 2008PECOS EnrolledAccepts Medicare Assignment
200 W ARBOR DR, SAN DIEGO, CA 92103(619) 543-3995 Get Directions Write a Review

NPPES record last updated: July 1, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 1, 2025, Nov 21, 2017 (2 updates tracked since 2017).

About Dr. Louisa Ruth Steiger M.d. NPPES

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

DR. LOUISA RUTH STEIGER M.D. (NPI 1417106204) is an individual psychiatry provider in San Diego, California, licensed in California (A111677) and active in the NPI registry since September 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1417106204
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. LOUISA RUTH STEIGERCredential: M.D.
Location Address200 W ARBOR DRSan Diego, CA 92103-9000
Mailing AddressPo Box 232410San Diego, CA 92193-2410
Phone(619) 543-3995
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateSeptember 16, 2008
Last NPPES UpdateJuly 1, 20252 updates tracked since enumeration
NPPES CertifiedJuly 1, 2025
✔ NPI 1417106204 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 · A111677
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.
200 W ARBOR DR, San Diego, CA 92103
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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. Louisa Ruth Steiger 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 ID3274788211
PECOS Enrollment IDI20130225000185
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

3

Medicare enrollment records show Louisa Steiger reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California
0.1 mi
Plastic Surgery
200 W ARBOR DR
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 25 clinicians in this Medicare group
NPI 1326141862 (800) 926-8273
Telecare Corporation
0.9 mi
Mental Health (Including Community Mental Health Center)
1660 HOTEL CIR N STE 101
San Diego, CA 92108
  • Reassigned Medicare billing, California enrollment
  • 247 clinicians in this Medicare group
NPI 1194186544 (619) 481-3840
Senior Medical Associates, Inc.
2.1 mi
Geriatric Medicine
2810 CAMINO DEL RIO S, STE 102
San Diego, CA 92108
  • Reassigned Medicare billing, California enrollment
  • 98 clinicians in this Medicare group
NPI 1629253505 (858) 385-1419

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
17 services17 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
14 services12 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 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
$184.71 typical visit price
range $62.10 – $184.71
Typical copayment $46.17 (range $15.52 – $46.17)
Most-billed visit code 99205
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
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 20

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

DR. RAMIN MOTARJEMI M.D.
Internal Medicine (Geriatric Medicine)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (858) 249-2500
DR. KYLE PALMER EDMONDS M.D., FAAHPM
Hospice, Inpatient
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
SHAWN RAVEENTH VEDAMANI MD
Anesthesiology
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
DALE MICHAEL TRUJILLO NP
Nurse Practitioner
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
DR. EUGENE THOMAS RICHARDSON IV MD
Internal Medicine (Infectious Disease)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
KAYLEE PETERSEN ARNP
Nurse Practitioner (Psychiatric/Mental Health)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
IRENE NEVAREZ NP
Nurse Practitioner
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
WILLIAM JAMES MOSS M.D.
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (508) 395-4189

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 Louisa Steiger's NPI number?

The NPI number for Louisa Steiger is 1417106204. It was assigned to this individual provider in the NPPES registry on September 16, 2008.

Where is Louisa Steiger located?

Louisa Steiger practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (619) 543-3995.

What is Louisa Steiger's specialty?

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

Is Louisa Steiger enrolled in Medicare?

Yes. Louisa Steiger 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 Louisa Steiger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louisa Steiger reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (San Diego, CA), Telecare Corporation (San Diego, CA) and Senior Medical Associates, Inc. (San Diego, 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 Louisa Steiger'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 Louisa Steiger was last updated on July 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.