Dr John F Freiler, MD - Medicare Allergy/immunology in San Antonio, TX

Dr John F Freiler, MD is a medicare enrolled "Allergy & Immunology - Allergy" physician in San Antonio, Texas. He graduated from medical school in 1999 and has 25 years of diverse experience with area of expertise as Allergy/immunology. His current practice location is 11840 Alamo Ranch Pkwy Ste 80, San Antonio, Texas. You can reach out to his office (for appointments etc.) via phone at (210) 764-6567.

Dr John F Freiler is licensed to practice in Texas (license number S2033) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1407863533.

Contact Information

Dr John F Freiler, MD
11840 Alamo Ranch Pkwy Ste 80,
San Antonio, TX 78253-4191
(210) 764-6567
(888) 395-3465

Map and Direction




Physician's Profile

Full NameDr John F Freiler
GenderMale
SpecialityAllergy/immunology
Experience25 Years
Location11840 Alamo Ranch Pkwy Ste 80, San Antonio, Texas
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr John F Freiler graduated from medical school in 1999
  NPI Data:
  • NPI Number: 1407863533
  • Provider Enumeration Date: 08/02/2006
  • Last Update Date: 08/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0941361851
  • Enrollment ID: I20210527000768

Medical Identifiers

Medical identifiers for Dr John F Freiler such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1407863533NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207KA0200XAllergy & Immunology - Allergy 25MA08413900 (New Jersey)Secondary
207R00000XInternal Medicine S2033 (Texas)Secondary
207R00000XInternal Medicine 25MA08413900 (New Jersey)Secondary
207KA0200XAllergy & Immunology - Allergy S2033 (Texas)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr John F Freiler allows following entities to bill medicare on his behalf.
Entity NamePremier Allergy Of Texas Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578143566
PECOS PAC ID: 3577962331
Enrollment ID: O20210527000581

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr John F Freiler is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr John F Freiler, MD
11840 Alamo Ranch Pkwy Ste 80,
San Antonio, TX 78253-4191

Ph: (210) 764-6567
Dr John F Freiler, MD
11840 Alamo Ranch Pkwy Ste 80,
San Antonio, TX 78253-4191

Ph: (210) 764-6567

Reviews and Comments


Allergy & Immunology Doctors in San Antonio, TX

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Kaitlyn Nicole Diaz, PA-C
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Practice Location: 2424 Babcock Rd Ste 301, San Antonio, TX 78229
Phone: 210-538-7678    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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