Provider Profile
Kerstyn A. O'Brien, PA-C
Unclaimed ProfileAbout Kerstyn O'brien
Listed in the NPI registry as a physician assistant — medical, Kerstyn A. O'Brien, PA-C practices in Fresno, CA. Kerstyn is also listed as specializing in physician assistant — surgical. According to Medicare claims data, Kerstyn cared for 168 Medicare patients across 395 services. The services billed most often include management of oxygen chamber therapy, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (559) 256-5130
- Email not available
Practice Locations
2335 E KASHIAN LN STE 260
Fresno, CA 93701
Conditions and Services Within This Provider's Scope
Within Physician Assistant - Medical generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Allergies
Blood
Bone and joint
Digestive
Digestive health
Ear, Nose & Throat
Endocrine
Eye Care
Foot and ankle
General Health
- Chronic fatigue
Hair and scalp
Headache and brain
Heart & Circulation
Hormones
Infections
Injury
Men's Health
Mental Health
Metabolic
Nerve conditions
- Carpal tunnel
- Sciatica
Neurology
Pain
Respiratory
Sexual Health
Skin
Skin cancer
Skin conditions
Sleep
Women's Health
Procedures & services
Most searched procedures
Allergies
Counseling
Dermatology
Diagnostic Tests
- COVID-19 Rapid Test
- Mono Rapid Test
- Rapid Flu Swab
- Rapid strep testing
- TB Skin Test
- Urine Drug Screen
- Urine Pregnancy Test
Ear, Nose & Throat
Evaluations
Exams
General Care
Heart & Circulation
Heart health
Hormones
Injections
Injury Care
Lab tests
- Cholesterol screening
- Hemoglobin A1c Test
- Thyroid Blood Test
- Urinalysis
Mental Health
Metabolic
Minor surgery
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Minor laceration repair
- Superficial foreign-body removal
Pain Management
- Trigger-point injection
Prevention
Respiratory
Screening
Skin procedures
Treatments
Virtual care
Women's Health
Women's health
Procedures Most Often Billed to Medicare
395 services · 168 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Management of oxygen chamber therapy | Treatment | 99183 |
216 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
63 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
37 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
27 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
23 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
16 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other physician assistants in Fresno 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2021 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Management of oxygen chamber therapy 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Kerstyn A. O'Brien?
Kerstyn A. O'Brien is a physician assistant in Fresno, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physician Assistant — Medical”.
NPI registry
What is Kerstyn A. O'Brien's address?
Kerstyn A. O'Brien is listed at 2335 E Kashian Ln Ste 260, Fresno, CA 93701. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Kerstyn A. O'Brien?
The number on file is (559) 256-5130. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Kerstyn A. O'Brien's NPI number?
Kerstyn A. O'Brien's National Provider Identifier is 1972179992. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Kerstyn A. O'Brien train?
Kerstyn A. O'Brien attended Other, graduating in 2021. This comes from the CMS National Downloadable File.
CMS public data
How long has Kerstyn A. O'Brien been practicing?
Kerstyn A. O'Brien has 5 years experience. Calculated from a graduation year of 2021, reported in the CMS National Downloadable File.
CMS public data
What procedures does Kerstyn A. O'Brien perform?
According to Medicare billing data, Kerstyn A. O'Brien provides treatments such as management of oxygen chamber therapy, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Kerstyn A. O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Kerstyn A. O'Brien. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.