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MORGAN ELIZABETH O'BRIEN MS, PA-C
NPI 1114557329
Physician Assistant in Carlsbad, CA

Active since January 16, 2020PECOS EnrolledAccepts Medicare Assignment
76.74/100
CMS Quality Rating
2910 JEFFERSON ST STE 100102, CARLSBAD, CA 92008(760) 729-8600 Get Directions Write a Review

NPPES record last updated: November 24, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 24, 2025, Aug 11, 2023, Dec 14, 2021 and 1 more (4 updates tracked since 2020).

About Morgan Elizabeth O'brien Ms, Pa-c NPPES

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

MORGAN ELIZABETH O'BRIEN MS, PA-C (NPI 1114557329) is an individual physician assistant in Carlsbad, California and active in the NPI registry since January 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Vista, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1114557329
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMORGAN ELIZABETH O'BRIENCredential: MS, PA-C
Location Address2910 JEFFERSON ST STE 100102Carlsbad, CA 92008-2356
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203
Phone(760) 729-8600
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJanuary 16, 2020
Last NPPES UpdateNovember 24, 20254 updates tracked since enumeration
NPPES CertifiedNovember 24, 2025
✔ NPI 1114557329 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
2910 JEFFERSON ST STE 100102, Carlsbad, CA 92008
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Secondary Practice Location 1

Location 1145 Thunder DrVista, CA 92083-6010 · Phone (760) 941-9002

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

Morgan Elizabeth O'brien Ms, Pa-c 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 ID6406247881
PECOS Enrollment IDI20211217002125
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.

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.
105 services79 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
87 services73 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92008 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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
Most-billed visit code 99213
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.

76.74/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality80.94
Promoting Interoperability78
Improvement Activities40
Cost55.12

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 Morgan O'brien's NPI number?

The NPI number for Morgan O'brien is 1114557329. It was assigned to this individual provider in the NPPES registry on January 16, 2020.

Where is Morgan O'brien located?

Morgan O'brien practices at 2910 Jefferson St Ste 100102, Carlsbad, CA 92008. The listed phone number is (760) 729-8600.

What is Morgan O'brien's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Morgan O'brien enrolled in Medicare?

Yes. Morgan O'brien 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 Morgan O'brien was last updated on November 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.