Dr. John Freiler, M.D.
Allergy/immunology
20+
Years in Practice
About Dr. John Freiler
John Freiler, M.D. is a healthcare provider practicing in San Antonio, TX.
Specialty Definition
A physician who specializes in the diagnosis, treatment, and management of allergies.
27
Years Experience
2
States Licensed
Credentials & Board Certifications
Additional Specialties
Primary Specialty
Allergy/immunologyCredentials verified via NPI Registry (NPPES)
Education & Training
Medical School
Other
Class of 1999
Licenses & Practice States
Licensed in 2 states
| State | License | Classification | Primary |
|---|---|---|---|
| New Jersey | 25MA08413900 | Allergy & Immunology | — |
| Texas | S2033 | Internal Medicine | — |
| New Jersey | 25MA08413900 | Internal Medicine | — |
| Texas | S2033 | Allergy & Immunology |
Public Data Summary for Dr. John Freiler
With 20 years of practice, Dr. John Freiler is an established allergy/immunology provider, M.D., after earning their medical degree at Other in 1999. Their National Provider Identifier (NPI) is 1407863533, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.
CMS Medicare data shows Dr. John Freiler as a lower-volume allergy/immunology provider, treating approximately 45 Medicare beneficiaries and delivering 2K services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.
Under the Physician Payments Sunshine Act, CMS reports that Dr. John Freiler received $344 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.
Transparency & Safety
Public records from CMS and OIG databases
Industry Payments
$344
Total payments received from pharmaceutical and medical device companies in 2023.
Source: CMS Open Payments (Sunshine Act)
Opioid Prescribing
This provider has no opioid prescriptions on file in Medicare Part D data.
Insurance & Accessibility
Reviews
Community reviews for Dr. John Freiler
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0 reviews
Allergy/immunology Providers Nearby
Same primary specialty near ZIP 78253
FAQ
Frequently asked questions about Dr. John Freiler
What does Dr. John Freiler specialize in?
Dr. John Freiler specializes in Allergy/immunology. Secondary taxonomy filings also list Allergy & Immunology and Internal Medicine.
Does Dr. John Freiler accept Medicare?
CMS records show that Dr. John Freiler accepts Medicare assignment. CMS billing data shows 45 Medicare beneficiaries treated in the most recent reporting year.
What is Dr. John Freiler's NPI number?
Dr. John Freiler's National Provider Identifier (NPI) is 1407863533. This is the unique 10-digit number the Centers for Medicare & Medicaid Services assigns to every practicing US healthcare provider. You can verify this number directly at the NPPES NPI Registry.
How long has Dr. John Freiler been practicing?
Dr. John Freiler has approximately 20 years of practice experience, having graduated from Other in 1999.