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

DR. JULIA KAY OBERNDORF MD
NPI 1649920521
Hospitalist in Santa Clarita, CA

Q: What is Julia Oberndorf's NPI number?

The NPI number for Julia Oberndorf is 1649920521. It was assigned to this individual provider in the NPPES registry on March 24, 2022.

Q: What is Julia Oberndorf's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Julia Oberndorf was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since March 24, 2022PECOS Enrolled

27235 TOURNEY RD STE 2500, SANTA CLARITA, CA 91355(661) 253-5851 Get Directions Write a Review

NPPES record last updated: September 24, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 24, 2026, Jul 11, 2026, Dec 16, 2025 and 1 more (4 updates tracked since 2022).

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About Dr. Julia Kay Oberndorf Md NPPES

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

DR. JULIA KAY OBERNDORF MD (NPI 1649920521) is an individual hospitalist provider in Santa Clarita, California, licensed in California (A199130) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1649920521

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameDR. JULIA KAY OBERNDORFCredential: MD

Location Address27235 TOURNEY RD STE 2500Santa Clarita, CA 91355-5908

Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631

Phone(661) 253-5851

Sole ProprietorNo

Medical School CMSOtherGraduated 2022

Enumeration DateMarch 24, 2022

Last NPPES UpdateSeptember 24, 20264 updates tracked since enumeration

NPPES CertifiedSeptember 24, 2026

✔ NPI 1649920521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CA · A199130

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License A199130 (CA)

Also ListedInternal Medicine · Addiction MedicineTaxonomy 207RA0401X · License A199130 (CA)

27235 TOURNEY RD STE 2500, Santa Clarita, CA 91355

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Secondary Practice Locations 2

Location 139000 Bob Hope DrRancho Mirage, CA 92270-3202 · Phone (760) 340-3911 · Fax (760) 837-8956

Location 267555 E Palm Canyon Dr Ste C113Cathedral City, CA 92234-5412 · Phone (760) 773-4300 · Fax (760) 773-4285

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

Dr. Julia Kay Oberndorf 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 ID5496241416

PECOS Enrollment IDI20251230000473

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 91355 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.

DIANA BOULOS KNEIBER MD

Dermatology

27235 TOURNEY RD STE 2500
SANTA CLARITA, CA 91355

Los Angeles County (661) 253-5851

RAMANDEEP BAINS M.D.

Internal Medicine (Rheumatology)