DR. ELIZABETH W TWAMLEY PHD
NPI 1700089141
Psychologist - Clinical in San Diego, CA

Q: What is Elizabeth Twamley's NPI number?

The NPI number for Elizabeth Twamley is 1700089141. It was assigned to this individual provider in the NPPES registry on June 5, 2007.

Q: What is Elizabeth Twamley's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Elizabeth Twamley was last updated on July 9, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since June 05, 2007PECOS Enrolled

200 W ARBOR DR, SAN DIEGO, CA 92103(858) 534-7792(619) 471-9017 Get Directions Write a Review

NPPES record last updated: July 9, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Elizabeth W Twamley Phd NPPES

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

DR. ELIZABETH W TWAMLEY PHD (NPI 1700089141) is an individual clinical provider in San Diego, California, licensed in California (PSY19150) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1700089141

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. ELIZABETH W TWAMLEYCredential: PHD

Location Address200 W ARBOR DRSan Diego, CA 92103

Mailing AddressPo Box 232410San Diego, CA 92193-2410

Phone(858) 534-7792

Fax(619) 471-9017

Sole ProprietorNo

Enumeration DateJune 5, 2007

Last NPPES UpdateJuly 9, 2018

✔ NPI 1700089141 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY19150

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

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 (PECOS)

Dr. Elizabeth W Twamley Phd 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 Reassignment

Medicare enrollment records show Elizabeth Twamley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of California

0.1 mi

Psychiatry

200 W ARBOR DR
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
220 clinicians in this Medicare group

NPI 1508968967 (800) 926-8273

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 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

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

Most-billed visit code 99214

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.

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