KIRSTI ILONA WENG ELDER MD
NPI 1689769309
Internal Medicine in Palo Alto, CA

Active since October 04, 2006PECOS EnrolledAccepts Medicare Assignment
300 PASTEUR DR, PALO ALTO, CA 94304(650) 736-5211 Get Directions Write a Review

NPPES record last updated: April 18, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Kirsti Ilona Weng Elder Md NPPES

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

KIRSTI ILONA WENG ELDER MD (NPI 1689769309) is an individual internal medicine provider in Palo Alto, California, licensed in California (A42867) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1985).

NPPES Registry Identity

NPI1689769309
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKIRSTI ILONA WENG ELDERCredential: MD
Location Address300 PASTEUR DRPalo Alto, CA 94304-2203
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 1985
Enumeration DateOctober 4, 2006
Last NPPES UpdateApril 18, 2024
NPPES CertifiedApril 18, 2024
NPI 1689769309 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · A42867
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Geriatric MedicineTaxonomy 207RG0300X · License A42867 (CA)
300 PASTEUR DR, Palo Alto, CA 94304

Other Names 1

Professional Name (2)Kirsti Llona Weng

Other Identifiers 1

Medicaid00A428670CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Kirsti Ilona Weng Elder Md 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 ID5092862540
PECOS Enrollment IDI20090420000630
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.

Areas of Expertise CMS Part B claims

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94304 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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.

Nurse Practitioner (Adult Health)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychosomatic Medicine)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychologist (Clinical)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
PALO ALTO, CA 94304
Colon & Rectal Surgery
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
PALO ALTO, CA 94304

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 Kirsti Elder's NPI number?

The NPI number for Kirsti Elder is 1689769309. It was assigned to this individual provider in the NPPES registry on October 4, 2006. The provider is also known as Kirsti Llona Weng.

Where is Kirsti Elder located?

Kirsti Elder practices at 300 Pasteur Dr, Palo Alto, CA 94304. The listed phone number is (650) 736-5211.

What is Kirsti Elder's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Kirsti Elder enrolled in Medicare?

Yes. Kirsti Elder 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.

When was this NPI record last updated?

The NPPES record for Kirsti Elder was last updated on April 18, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.