Doctor profile · Federal record
Dr. John Freiler, M.D.
Allergy Physician (CMS: Allergy/Immunology) · Allergy Physician · Internal Medicine Physician · Internal Medicine Physician · San Antonio, TX
- NPI 1407863533
- 27 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
11840 Alamo Ranch Pkwy Ste 80
San Antonio, TX 782534191
(210) 764-6567
fax (888) 395-3465
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- August 10, 2023
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207KA0200X — NUCC code
- State licenses (2)
- Texas #S2033 · New Jersey #25MA08413900
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1407863533. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,566
Distinct HCPCS
5
Medicare allowed
$16,576
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 1,232 | 20 | $4 | |
95024 |
Test for allergy using allergenic extract injected into skin | 238 | 13 | $7 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 59 | 29 | $115 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 22 | 22 | $152 | |
94010 |
Test to measure expiratory airflow and volume | 15 | 14 | $23 |
In context: peer comparison
Among 4 peers in San Antonio Allergy Physician, average services per provider: 968. This provider delivers 1.6× the peer median.Open Payments
Industry payments received
All-time total
$1,726
Transactions
25
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 9 | $496.43 | |
| GlaxoSmithKline, LLC. | 4 | $291.92 | |
| Takeda Pharmaceuticals U.S.A., INC. | 2 | $156.03 | |
| Genentech USA, INC. | 1 | $147.50 | |
| Jubilant HollisterStier LLC | 1 | $143.43 | |
| Genentech, INC. | 1 | $141.64 | |
| Genzyme Corporation | 1 | $124.99 | |
| Grifols USA, LLC | 1 | $110.29 | |
| Sanofi-Aventis U.S. LLC | 3 | $68.39 | |
| Phadia US INC. | 1 | $24.91 | |
| Octapharma USA, INC. | 1 | $20.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
87
Patients
21
Total drug cost
$17,658
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Azelastine Hcl | Generic | 42 | 21 | $1,691 |
| Advair Hfa (Fluticasone Propion/Salmeterol) | Brand | 15 | 0 | $5,749 |
| Fluticasone Propionate | Generic | 15 | 0 | $201 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 15 | 0 | $10,018 |
Frequently asked questions
What is Dr. John Freiler's medical specialty?
Dr. John Freiler practices Allergy Physician in San Antonio, TX.
Where does Dr. John Freiler practice?
Dr. John Freiler practices at 11840 Alamo Ranch Pkwy Ste 80, San Antonio, TX 782534191. Office phone: 2107646567.
What is Dr. John Freiler's NPI?
Dr. John Freiler's National Provider Identifier (NPI) is 1407863533, issued by NPPES.
Does Dr. John Freiler accept Medicare assignment?
Dr. John Freiler does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. John Freiler commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Test for allergy using allergenic extract injected into skin (HCPCS 95024); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.