KERSTYN A O'BRIEN PA-C
NPI 1972179992
Physician Assistant - Medical in Fresno, CA

Q: What is Kerstyn O'brien's NPI number?

The NPI number for Kerstyn O'brien is 1972179992. It was assigned to this individual provider in the NPPES registry on June 1, 2021.

Q: What is Kerstyn O'brien's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Q: When was this NPI record last updated?

The NPPES record for Kerstyn O'brien was last updated on August 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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 June 01, 2021PECOS EnrolledAccepts Medicare Assignment

85/100

CMS Quality Rating

2335 E KASHIAN LN STE 260, FRESNO, CA 93701(559) 256-5130(559) 485-4504 Get Directions Write a Review

NPPES record last updated: August 26, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 26, 2021, Jun 1, 2021 (2 updates tracked since 2021).

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About Kerstyn A O'brien Pa-c NPPES

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

KERSTYN A O'BRIEN PA-C (NPI 1972179992) is an individual medical provider in Fresno, California, licensed in California (59940) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1972179992

Entity TypeIndividualFemale

Primary Taxonomy363AM0700X

Provider Legal NameKERSTYN A O'BRIENCredential: PA-C

Location Address2335 E KASHIAN LN STE 260Fresno, CA 93701-2234

Mailing Address2625 E Divisadero StFresno, CA 93721-1431 · (559) 443-2682 · Fax (559) 443-2681

Phone(559) 256-5130

Fax(559) 485-4504

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateJune 1, 2021

Last NPPES UpdateAugust 26, 20212 updates tracked since enumeration

NPPES CertifiedAugust 26, 2021

✔ NPI 1972179992 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363AM0700X

License✔ Licensed in CA · 59940

Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X · License 59940 (CA)

2335 E KASHIAN LN STE 260, Fresno, CA 93701

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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

Kerstyn A O'brien 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 ID8022416528

PECOS Enrollment IDI20211014000732

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 7

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.

Management of oxygen chamber therapy 99183

Oxygen chamber therapy involves breathing pure oxygen in a pressurized room or tube. It's used to treat various conditions like wounds that won't heal due to diabetes or radiation injury. In this therapy, your body's tissues get more oxygen to promote healing and fight infection.

216 services15 patients

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.

63 services48 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

37 services37 patients

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.

27 services19 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

23 services23 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

16 services15 patients

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.

85/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

81.33

Promoting Interoperability

100

Improvement Activities

Cost

45.02

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

1 supplier14 claims14 services$1.92 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier13 claims13 services$61.77 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOSE JOSEPH VEMPILLY MD, FCCP

Internal Medicine (Pulmonary Disease)