Overview
John Mcmahon is a primary care provider, practicing in Internal Medicine in Portsmouth, New Hampshire. He has been practicing medicine for over 18 years.
Dr. Mcmahon is highly rated in 7 conditions, according to our data. His clinical expertise encompasses Baker Cyst, Tenosynovitis, Osteoarthritis, and Frozen Shoulder.
Graduate Year
Specialties
Licenses
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- EPO
- HMO
- PPO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- MEDICARE MAPD
- OTHER MEDICARE
- OTHER MEDICAID
- STATE MEDICAID
- EPO
- MANAGED MEDICAID PLAN
- EPO
- HMO
- POS
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
1900 Lafayette Rd, Portsmouth, NH 03801
Medical And Surgical Specialties
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Frequently Asked Questions about Dr. John A. Mcmahon
How do I make an appointment with Dr. John A. Mcmahon?
You can book an appointment with Dr. John A. Mcmahon by calling their office at 603-431-1121. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. John A. Mcmahon a top-rated expert for Baker Cyst?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. John A. Mcmahon is classified as an Distinguished expert for Baker Cyst, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. John A. Mcmahon specialize in?
While Dr. John A. Mcmahon is a Internal Medicine, they have specific expertise in Baker Cyst, Tenosynovitis, and Osteoarthritis. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Internal Medicine.
Does Dr. John A. Mcmahon accept my insurance?
Dr. John A. Mcmahon accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 603-431-1121 to verify that your specific plan is currently accepted before your visit.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Distinguished
- Baker CystDr. Mcmahon isDistinguished. Learn about Baker Cyst.
- TenosynovitisDr. Mcmahon isDistinguished. Learn about Tenosynovitis.
- Advanced
- ConcussionDr. Mcmahon isAdvanced. Learn about Concussion.
- Frozen ShoulderDr. Mcmahon isAdvanced. Learn about Frozen Shoulder.
- Mal De Debarquement SyndromeDr. Mcmahon isAdvanced. Learn about Mal De Debarquement Syndrome.
- OsteoarthritisDr. Mcmahon isAdvanced. Learn about Osteoarthritis.
- Sacroiliac Joint DiseaseDr. Mcmahon isAdvanced. Learn about Sacroiliac Joint Disease.
- Experienced
- ApoplexyDr. Mcmahon isExperienced. Learn about Apoplexy.
- Common Peroneal Nerve DysfunctionDr. Mcmahon isExperienced. Learn about Common Peroneal Nerve Dysfunction.
- DeliriumDr. Mcmahon isExperienced. Learn about Delirium.
- Invertebral Disc DiseaseDr. Mcmahon isExperienced. Learn about Invertebral Disc Disease.
- MetatarsalgiaDr. Mcmahon isExperienced. Learn about Metatarsalgia.
- NeuralgiaDr. Mcmahon isExperienced. Learn about Neuralgia.
- Plantar FasciitisDr. Mcmahon isExperienced. Learn about Plantar Fasciitis.
- Radial Nerve DysfunctionDr. Mcmahon isExperienced. Learn about Radial Nerve Dysfunction.
- RhizarthrosisDr. Mcmahon isExperienced. Learn about Rhizarthrosis.
- Tarsal Tunnel SyndromeDr. Mcmahon isExperienced. Learn about Tarsal Tunnel Syndrome.
- Tennis ElbowDr. Mcmahon isExperienced. Learn about Tennis Elbow.