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ALEXANDER YOO M.D.
NPI 1881012128
Psychiatry & Neurology - Neurology in San Francisco, CA

Active since April 03, 2014PECOS EnrolledAccepts Medicare Assignment
85.48/100
CMS Quality Rating
505 PARNASSUS AVENUE, SAN FRANCISCO, CA 94143(201) 396-4488 Get Directions Write a Review

NPPES record last updated: February 12, 2019. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Alexander Yoo M.d. NPPES

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

ALEXANDER YOO M.D. (NPI 1881012128) is an individual neurology provider in San Francisco, California, licensed in California (A142375) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of University Of Virginia School Of Medicine (2014).

NPPES Registry Identity

NPI1881012128
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameALEXANDER YOOCredential: M.D.
Location Address505 PARNASSUS AVENUESan Francisco, CA 94143-0114
Mailing Address505 Parnassus Avenue, M798San Francisco, CA 94143-0114
Phone(201) 396-4488
Sole ProprietorNo
Medical School CMSUniversity Of Virginia School Of MedicineGraduated 2014
Enumeration DateApril 3, 2014
Last NPPES UpdateFebruary 12, 2019
✔ NPI 1881012128 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in CA · A142375
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
505 PARNASSUS AVENUE, San Francisco, CA 94143
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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

Alexander Yoo 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 ID5991099848
PECOS Enrollment IDI20180824002388, I20231004002147
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 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.

Sleep study in sleep lab (6 years or older) 95810
A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.
13 services11 patients
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.
12 services12 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.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.48/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.6
Promoting Interoperability100
Improvement Activities40

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.

UNIVERSITY OF CALIFORNIA, SAN FRANCISCO
General Acute Care Hospital
505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2742
DR. ELIZABETH MADELEINE EDWINA COLE MBBS
Anesthesiology
505 PARNASSUS AVENUE, DEPARTMENT OF ANESTHESIA AT UCSF
SAN FRANCSICO, CA 94143
San Francisco County (415) 476-1000
UNIVERSITY OF CALIFORNIA, SAN FRANCISCO
General Acute Care Hospital
505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2742
RUTH ZHANG
Pathology (Anatomic Pathology & Clinical Pathology)
505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1613
MEGHAN HEWLETT MD
Emergency Medicine
505 PARNASSUS AVENUE, ROOM M-24, BOX #0203
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1529
DR. JAMES WELDON MAAS M.D. PH.D.
Psychiatry & Neurology (Neurology)
505 PARNASSUS AVENUE, UCSF DEPARTMENT OF NEUROLOGY
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1489
SUHAS RAO
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
UNIVERSITY OF CALIFORNIA, SAN FRANCISCO
General Acute Care Hospital
505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2742

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 Alexander Yoo's NPI number?

The NPI number for Alexander Yoo is 1881012128. It was assigned to this individual provider in the NPPES registry on April 3, 2014.

Where is Alexander Yoo located?

Alexander Yoo practices at 505 Parnassus Avenue, San Francisco, CA 94143. The listed phone number is (201) 396-4488.

What is Alexander Yoo's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Alexander Yoo enrolled in Medicare?

Yes. Alexander Yoo 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 Alexander Yoo was last updated on February 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.