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

KARLEN ULUBABYAN MD
NPI 1376121947
Hospitalist in Los Angeles, CA

Q: What is Karlen Ulubabyan's NPI number?

The NPI number for Karlen Ulubabyan is 1376121947. It was assigned to this individual provider in the NPPES registry on April 1, 2021.

Q: What is Karlen Ulubabyan'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 Karlen Ulubabyan was last updated on August 4, 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 April 01, 2021PECOS EnrolledAccepts Medicare Assignment

757 WESTWOOD PLZ STE 7501, LOS ANGELES, CA 90095(310) 267-9643(310) 267-3840 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 4, 2026, Jun 21, 2024, Apr 1, 2021 (3 updates tracked since 2021).

On this page

About Karlen Ulubabyan Md NPPES

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

KARLEN ULUBABYAN MD (NPI 1376121947) is an individual hospitalist provider in Los Angeles, California, licensed in California (A193511) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of University Of California, San Diego School Of Medicine (2021).

NPPES Registry Identity

NPI1376121947

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameKARLEN ULUBABYANCredential: MD

Location Address757 WESTWOOD PLZ STE 7501Los Angeles, CA 90095-8358

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

Phone(310) 267-9643

Fax(310) 267-3840

Sole ProprietorYes

Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 2021

Enumeration DateApril 1, 2021

Last NPPES UpdateAugust 4, 20263 updates tracked since enumeration

NPPES CertifiedAugust 4, 2026

✔ NPI 1376121947 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CA · A193511

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 A195311 (CA)

757 WESTWOOD PLZ STE 7501, Los Angeles, CA 90095

Open in Google Maps ↗

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

Karlen Ulubabyan 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 ID3072047562

PECOS Enrollment IDI20241106001456

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 2

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

103 services33 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

15 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

New York-Presbyterian Hospital

Acute Care Hospitals · New York, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330101

Location525 East 68th StreetNew York, NY 10065 · New York County

Emergency services Birthing friendly

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.

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.

ATHEER A RAZZOUK MD

Internal Medicine