About Dr. Janet Kershaw-Mclennan
Background and practice information
Dr. Janet Kershaw-Mclennan is an allergist-immunologist with over 42 years of clinical experience serving patients in the Atascadero, CA area. She completed her medical training at Other and has been in practice since 1984.
Dr. Janet Kershaw-Mclennan's clinical practice focuses on treating patients with asthma and allergies, asthma and breathing difficulties, COPD and breathing difficulties, and related conditions. In addition to allergy/immunology, she also specializes in internal medicine.
Dr. Janet Kershaw-Mclennan is in-network with 5 insurance providers, including Aetna, Blue Shield of California, Cigna, and 2 more. Patients are encouraged to verify coverage with her office before scheduling an appointment.
Additional specialties: Internal Medicine
At a Glance
Education
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Claim this profilePractice Locations
1 location
8105 Morro Rd D
Atascadero, CA 93422
Affiliations
Hospital and facility affiliations
Treatment & Experience
Clinical practice and procedure experience for Dr. Janet Kershaw-Mclennan
Services & Procedures
Dr. Janet Kershaw-Mclennan's clinical practice encompasses office visits, injections & procedures, other services. Based on Medicare utilization data, Dr. Janet Kershaw-Mclennan has provided a substantial volume of services, reflecting an active and established practice in allergy/immunology.
Office Visits
587 servicesDr. Janet Kershaw-Mclennan provides patient consultations ranging from routine follow-ups to comprehensive evaluations, including new patient visit and follow-up visit and phone consultation. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 48% below the billed amount.
Injections & Procedures
874 servicesDr. Janet Kershaw-Mclennan performs therapeutic injections and minor procedures, including professional service for multiple injections of allergen and injection. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 77% below the billed amount.
Other Services
761 servicesDr. Janet Kershaw-Mclennan provides additional clinical services, with professional service for preparation and provision of 1 or more antigens being a key part of her practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 41% below the billed amount.
Treatment Approach
Dr. Janet Kershaw-Mclennan's treatment approach includes prescribing Montelukast Sodium, Azelastine Hcl, Fluticasone/umeclidin/vilanter (Trelegy Ellipta) for her patients. These medications are commonly used for treating asthma and allergies, asthma and breathing difficulties. She prescribing profile reflects experience across a wide range of treatments, addressing multiple aspects of patient care within her specialty. Dr. Janet Kershaw-Mclennan has treated a significant number of Medicare patients, demonstrating an established practice in this area.
Source: CMS Medicare Provider Utilization and Payment Data, 2023.
Insurance Networks
Accepted insurance plans and networks
Dr. Janet Kershaw-Mclennan accepts 29 plans from 5 insurers, including Cigna, Humana, Aetna.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Safety
CMS quality performance and patient safety measures
Below Average
CMS Quality Score · Out of 100
Dr. Kershaw-Mclennan received a quality score of 22.4 out of 100 from the Centers for Medicare & Medicaid Services (CMS). CMS evaluates allergist-immunologists through the Merit-based Incentive Payment System (MIPS) across clinical quality, cost efficiency, and care coordination. Patients in Atascadero, CA may wish to discuss quality metrics and care approaches directly with the provider.
Clinical Quality
0.0/100Measures the quality of care provided based on clinical outcomes and patient safety
Cost Efficiency
74.7/100Evaluates how efficiently healthcare resources are used while maintaining quality
Care Improvement
0.0/40Reflects participation in activities that improve clinical practice and patient engagement
Source: CMS Merit-based Incentive Payment System
Financial Transparency
Industry payment disclosures
Pharmaceutical and medical device companies disclosed $1.5K in payments to Dr. Janet Kershaw-Mclennan in 2024, primarily from GENZYME CORPORATION for food and beverage. These disclosures are required by federal law under the Physician Payments Sunshine Act.
Top Paying Companies
Source: CMS Open Payments, 2024.
Patient Reviews
Reviews and ratings from patients
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About Allergy/Immunology
Specialty overview and common conditions
An allergist (also called an allergist/immunologist) is a physician specially trained to diagnose, treat, and manage allergies, asthma, and immunologic disorders. These medical specialists have expertise in identifying allergens that trigger immune system responses and developing personalized treatm...
Common conditions treated by allergy/immunology specialists:
- Allergic Rhinitis (Hay Fever)
- Asthma
- Food Allergies
- Atopic Dermatitis (Eczema)
Frequently Asked Questions
Common questions about Janet Kershaw-Mclennan
Does Dr. Kershaw-Mclennan accept Medicare?
Yes, Dr. Kershaw-Mclennan accepts Medicare assignment. Patients with Medicare coverage can see Dr. Kershaw-Mclennan and typically pay less out of pocket when using a provider who accepts Medicare assignment.
What insurance does Dr. Kershaw-Mclennan accept?
Dr. Kershaw-Mclennan is in-network with 5 insurance providers, including Aetna, Blue Shield of California, Cigna, Humana, Medicare. Insurance networks can change, so patients should verify their specific plan coverage directly with Dr. Kershaw-Mclennan's office before scheduling.
Does Dr. Kershaw-Mclennan offer telehealth or virtual appointments?
Yes, Dr. Kershaw-Mclennan offers telehealth services, allowing patients to have virtual consultations from the comfort of their home. Contact the office to schedule a telehealth appointment.
What conditions does Dr. Kershaw-Mclennan treat?
As a allergy/immunology specialist, Dr. Kershaw-Mclennan commonly treats conditions including allergic rhinitis (hay fever), asthma, food allergies, atopic dermatitis (eczema), urticaria and angioedema (hives and swelling), and other related health concerns. Contact the office to discuss your specific healthcare needs.
What medications does Dr. Kershaw-Mclennan commonly prescribe?
Based on Medicare prescribing data, Dr. Kershaw-Mclennan commonly prescribes medications including Montelukast Sodium, Azelastine Hcl, Fluticasone/Umeclidin/Vilanter. The specific medications prescribed depend on each patient's individual diagnosis and health needs. Patients should discuss treatment options directly with Dr. Kershaw-Mclennan during their consultation.
What is Dr. Kershaw-Mclennan's quality rating?
Dr. Kershaw-Mclennan has received a quality score of 22.4 out of 100 from the Centers for Medicare & Medicaid Services (CMS) through the Merit-based Incentive Payment System (MIPS). This score reflects performance across quality measures, promoting interoperability, improvement activities, and cost efficiency.
Where did Dr. Kershaw-Mclennan go to medical school?
Dr. Kershaw-Mclennan completed medical training at Other and has been practicing since 1984, bringing over 42 years of clinical experience.
Where is Dr. Kershaw-Mclennan's office located?
Dr. Kershaw-Mclennan practices at 8105 MORRO RD D, Atascadero, CA 93422. Contact the office for appointment scheduling.
How do I make an appointment with Dr. Kershaw-Mclennan?
To schedule an appointment with Dr. Kershaw-Mclennan, contact the office directly. New patients should have their insurance information and medical records ready when calling.
Data source: CMS National Provider Registry ·
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