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DR. GEORGE YEN MD
NPI 1841575990
Internal Medicine in Los Angeles, CA

Active since October 19, 2011PECOS EnrolledAccepts Medicare Assignment
200 UCLA MEDICAL PLZ STE 365A365B, UNITED STATES, LOS ANGELES, CA 90095(310) 206-0644 Get Directions Write a Review

NPPES record last updated: September 24, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. George Yen Md NPPES

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

DR. GEORGE YEN MD (NPI 1841575990) is an individual internal medicine provider in Los Angeles, California, licensed in California (A122358) and active in the NPI registry since October 2011. He is enrolled in Medicare PECOS and is a graduate of State University Of New York Downstate Medical Center (2011).

NPPES Registry Identity

NPI1841575990
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GEORGE YENCredential: MD
Location Address200 UCLA MEDICAL PLZ STE 365A365B, UNITED STATESLos Angeles, CA 90095-8344
Mailing Address200 Ucla Medical Plz Ste 365a365bLos Angeles, CA 90095-8344 · (310) 206-0644
Phone(310) 206-0644
Sole ProprietorNo
Medical School CMSState University Of New York Downstate Medical CenterGraduated 2011
Enumeration DateOctober 19, 2011
Last NPPES UpdateSeptember 24, 2014
✔ NPI 1841575990 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A122358
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.
200 UCLA MEDICAL PLZ STE 365A365B, Los Angeles, CA 90095
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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. George Yen 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 ID6709109499
PECOS Enrollment IDI20150105001685
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 George Yen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Regents Of The University Of California
0.5 mi
Internal Medicine
200 MEDICAL PLAZA, SUITE 365,530,420,250,120,214
Los Angeles, CA 90095
  • Reassigned Medicare billing, California enrollment
  • 1,766 clinicians in this Medicare group
NPI 1235107566 (310) 794-1276

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 9

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.
180 services138 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.
62 services48 patients
Blood test, clotting time 85610
A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.
61 services13 patients
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.
45 services30 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
41 services41 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
32 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90095 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

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 George Yen's NPI number?

The NPI number for George Yen is 1841575990. It was assigned to this individual provider in the NPPES registry on October 19, 2011.

Where is George Yen located?

George Yen practices at 200 Ucla Medical Plz Ste 365a365b United States, Los Angeles, CA 90095. The listed phone number is (310) 206-0644.

What is George Yen's specialty?

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

Is George Yen enrolled in Medicare?

Yes. George Yen 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 organization bills Medicare for George Yen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), George Yen reassigns Medicare benefits to The Regents Of The University Of California (Los Angeles, CA). The 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 George Yen'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 George Yen was last updated on September 24, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.