Internal Medicine · Sag Harbor, NY
NPI
1659364214
Since 2005
Specialty
Internal Medicine
Code 207R00000X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
60 Bay St
Sag Harbor, NY, 11963
Phone (631) 725-4600
Groups this clinician bills Medicare through
Medicare paid, 2024
$60K
793 services
Medicare patients, 2024
197
Average age 81
Drug cost, 2024
$796K
3,958 prescriptions
Company payments, 2025
$6,121
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by John K Oppenheimer was code 99213 (office e&m - established), 311 times for 143 patients. In total John K Oppenheimer billed 793 services in 14 codes, and Medicare paid $60K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2009-08-21.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 311 | 143 | $55.36 | $17K |
| 99215 Office E&M - Established | Office | 141 | 136 | $109.46 | $15K |
| 90662 Vaccine Product | Office | 84 | 84 | $52.30 | $4,393 |
| G0008 Administration of influenza virus vaccine | Office | 82 | 82 | $24.01 | $1,969 |
| 90677 Vaccine Product | Office | 52 | 52 | $245.00 | $13K |
| G0009 Administration of pneumococcal vaccine | Office | 47 | 47 | $24.01 | $1,128 |
| 99212 Office E&M - Established | Office | 23 | 20 | $37.50 | $862 |
| 99214 Office E&M - Established | Office | 19 | 18 | $78.70 | $1,495 |
By year: 2022 $50K for 813 services; 2023 $59K for 799 services; 2024 $60K for 793 services.
Lab tests billed to Medicare, 2022
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 34 | 31 | $3.00 | $102 |
Medicare prescription drug claims, 2024
In 2024, the drug John K Oppenheimer prescribed most often to Medicare patients was Atorvastatin Calcium, with 243 prescriptions and refills. In total John K Oppenheimer wrote 3,958 Medicare prescriptions that cost $796K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 243 | 621 | 67 | $3,262 |
| Levothyroxine Sodium Generic | 136 | 308 | 32 | $1,780 |
| Amlodipine Besylate Generic | 124 | 372 | 36 | $1,555 |
| Losartan Potassium Generic | 119 | 354 | 35 | $1,707 |
| Escitalopram Oxalate Generic | 111 | 279 | 27 | $2,104 |
| Montelukast Sodium Generic | 107 | 272 | 25 | $1,558 |
| Rosuvastatin Calcium Generic | 97 | 255 | 24 | $1,684 |
| Zolpidem Tartrate Generic | 83 | 85 | 26 | $464 |
| Gabapentin Generic | 78 | 140 | 21 | $1,827 |
| Metoprolol Succinate Generic | 75 | 197 | 21 | $1,083 |
| Eliquis Apixaban | 69 | 169 | 20 | $99K |
| Bupropion Xl Bupropion Hcl | 61 | 177 | 18 | $2,048 |
| Trazodone Hcl Generic | 57 | 143 | 21 | $1,007 |
| Famotidine Generic | 55 | 160 | 17 | $885 |
| Alprazolam Generic | 55 | 55 | 11 | $352 |
Brand drugs: 609 claims; generic drugs: 3,301 claims; opioid claims: 74.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid John K Oppenheimer $6,121 ($6,121 in general payments such as food, travel and fees) from 2 companies. The largest payer was Aquestive Therapeutics, Inc. with $6,000.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.