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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DEREK TAI
NPI 1639874969
Internal Medicine in Los Angeles, CA

Active since April 04, 2023PECOS Enrolled
4867 W SUNSET BLVD, LOS ANGELES, CA 90027(833) 574-2273 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2026, Apr 4, 2023 (2 updates tracked since 2023).

About Derek Tai NPPES

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

DEREK TAI (NPI 1639874969) is an individual internal medicine provider in Los Angeles, California, licensed in California (20A23142) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS and is a graduate of Touro Un College Of Osteopathic Medicine, Vallejo (2023).

NPPES Registry Identity

NPI1639874969
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDEREK TAI
Location Address4867 W SUNSET BLVDLos Angeles, CA 90027-5969
Mailing Address4867 W Sunset BlvdLos Angeles, CA 90027-5969 · (833) 574-2273
Phone(833) 574-2273
Sole ProprietorNo
Medical School CMSTouro Un College Of Osteopathic Medicine, VallejoGraduated 2023
Enumeration DateApril 4, 2023
Last NPPES UpdateSeptember 3, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1639874969 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 · 20A23142
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.
4867 W SUNSET BLVD, Los Angeles, CA 90027
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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)

Derek Tai is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3476025107
PECOS Enrollment IDI20260615000524
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 Derek Tai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Superior Hospitalist Medical Group Inc
12 mi
Hospitalist
1680 E 120TH ST
Los Angeles, CA 90059
  • Reassigned Medicare billing, California enrollment
  • 198 clinicians in this Medicare group
NPI 1780047712 (330) 493-4443

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 90027 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.

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.

CHRISELDA MANALO
Nurse Practitioner (Gerontology)
4867 W SUNSET BLVD, 6TH FLOOR - INTENSIVE CARE UNIT
LOS ANGELES, CA 90027
Los Angeles County (323) 783-9644
HEDDY TRAC
Respiratory Therapist, Certified
4867 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 783-8320
DAVID HWANG DO
Internal Medicine (Nephrology)
4867 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (833) 574-2273
SOPHIA ROCHELLE WILSON DNP, CRNA
Nurse Anesthetist, Certified Registered
4867 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (276) 734-1219
MRS. ALEXANDRA FELDMAN
Pharmacist
4867 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 783-8308
ALLISON BRIEL GROSSMAN SLP
Speech-Language Pathologist
4867 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (833) 574-2273
MISS SERENA LI
Pharmacist
4867 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 783-1546
MICHAEL INDUCIL RCP
Respiratory Therapist, Registered
4867 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 783-8320

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 Derek Tai's NPI number?

The NPI number for Derek Tai is 1639874969. It was assigned to this individual provider in the NPPES registry on April 4, 2023.

Where is Derek Tai located?

Derek Tai practices at 4867 W Sunset Blvd, Los Angeles, CA 90027. The listed phone number is (833) 574-2273.

What is Derek Tai's specialty?

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

Is Derek Tai enrolled in Medicare?

Yes. Derek Tai is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Derek Tai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Derek Tai reassigns Medicare benefits to Superior Hospitalist Medical Group Inc (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 Derek Tai'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 Derek Tai was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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.