IRENE UNG NP
NPI 1790668911
Nurse Practitioner - Acute Care in San Francisco, CA

Active since July 26, 2025PECOS EnrolledAccepts Medicare Assignment
400 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 476-1000 Get Directions Write a Review

NPPES record last updated: July 26, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Irene Ung Np NPPES

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

IRENE UNG NP (NPI 1790668911) is an individual acute care provider in San Francisco, California, licensed in California (95035686) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1790668911
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameIRENE UNGCredential: NP
Location Address400 PARNASSUS AVESan Francisco, CA 94143-2202
Mailing Address518 Gellert DrSan Francisco, CA 94132-1212 · (415) 317-3783
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJuly 26, 2025
NPPES CertifiedJuly 26, 2025
✔ NPI 1790668911 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in CA · 95035686
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License 95035686 (CA)
400 PARNASSUS AVE, San Francisco, CA 94143

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

Irene Ung Np 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 ID4183122542
PECOS Enrollment IDI20250813004024
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.

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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
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.

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.

Ophthalmology
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Surgery (Surgical Critical Care)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Otolaryngology (Pediatric Otolaryngology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Physician Assistant
400 PARNASSUS AVE, 3RD FLOOR, SUITE 311
SAN FRANCISCO, CA 94143
Physical Therapist
400 PARNASSUS AVE, A-68
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Orthopaedic Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143

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 Irene Ung's NPI number?

The NPI number for Irene Ung is 1790668911. It was assigned to this individual provider in the NPPES registry on July 26, 2025.

Where is Irene Ung located?

Irene Ung practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.

What is Irene Ung's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Irene Ung enrolled in Medicare?

Yes. Irene Ung 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 Irene Ung was last updated on July 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.