Doctor profile · Federal record
Dr. John Oppenheimer, MD
Allergy Physician (CMS: Allergy/Immunology) · Cedar Knolls, NJ
- NPI 1639170871
- Accepts Medicare
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8 Saddle RD, First Floor
Cedar Knolls, NJ 079271902
(908) 934-0555
fax (973) 540-0472 - Mailing address
-
Po Box 416457
Boston, MA 022416457
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- May 16, 2016
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207KA0200X — NUCC code
- State license (1)
- New Jersey #25MA05056200
- Medicaid
- NJ #5534500
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639170871. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
4,512
Distinct HCPCS
9
Medicare allowed
$221,163
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J2357 |
Injection, omalizumab, 5 mg | 2,190 | 11 | $23 | |
95004 |
Test for allergy using allergenic extract | 851 | 54 | $5 | |
J0517 |
Injection, benralizumab, 1 mg | 780 | 12 | $128 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 198 | 114 | $141 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 151 | 96 | $100 | |
94010 |
Test to measure expiratory airflow and volume | 132 | 71 | $9 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 105 | 105 | $183 | |
96372 |
Injection of drug or substance under skin or into muscle | 92 | 27 | $16 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 13 | 13 | $124 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 501. This provider delivers 9.0× the peer median.Open Payments
Industry payments received
All-time total
$120,023
Transactions
133
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GlaxoSmithKline, LLC. | 82 | $77,789.81 | |
| GENZYME CORPORATION | 7 | $16,852.37 | |
| AstraZeneca Pharmaceuticals LP | 17 | $8,696.95 | |
| Novartis Pharmaceuticals Corporation | 5 | $7,188.61 | |
| Regeneron Healthcare Solutions, Inc. | 4 | $5,895.40 | |
| Chiesi USA, Inc. | 6 | $2,396.10 | |
| AstraZeneca UK Limited | 1 | $584.00 | |
| Teva Pharmaceuticals USA, Inc. | 1 | $428.12 | |
| Genentech USA, Inc. | 2 | $56.07 | |
| Amgen Inc. | 2 | $34.00 | |
| kaleo, Inc. | 2 | $29.33 | |
| Axsome Therapeutics, Inc. | 1 | $20.93 | |
| Blueprint Medicines Corporation | 1 | $18.32 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $17.39 | |
| Optinose US, Inc. | 1 | $15.86 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
781
Patients
253
Total drug cost
$179,013
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Fluticasone Propionate | Generic | 145 | 60 | $2,389 |
| Montelukast Sodium | Generic | 127 | 34 | $2,418 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 70 | 40 | $2,323 |
| Ipratropium Bromide | Generic | 59 | 23 | $2,294 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 55 | 17 | $61,427 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 52 | 13 | $35,642 |
| Azelastine Hcl | Generic | 51 | 22 | $1,708 |
| Epinephrine | Generic | 39 | 32 | $10,623 |
| Doxepin Hcl | Generic | 34 | 0 | $1,257 |
| Arnuity Ellipta (Fluticasone Furoate) | Brand | 32 | 0 | $17,283 |
Frequently asked questions
What is Dr. John Oppenheimer's medical specialty?
Dr. John Oppenheimer practices Allergy Physician in Cedar Knolls, NJ.
Where does Dr. John Oppenheimer practice?
Dr. John Oppenheimer practices at 8 Saddle RD, Cedar Knolls, NJ 079271902. Office phone: 9089340555.
What is Dr. John Oppenheimer's NPI?
Dr. John Oppenheimer's National Provider Identifier (NPI) is 1639170871, issued by NPPES.
Does Dr. John Oppenheimer accept Medicare assignment?
Yes. Dr. John Oppenheimer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Oppenheimer commonly perform?
Top Medicare-reported procedures in 2023: Injection, omalizumab, 5 mg (HCPCS J2357); Test for allergy using allergenic extract (HCPCS 95004); Injection, benralizumab, 1 mg (HCPCS J0517). Source: CMS Medicare Physician & Other Practitioners file.