Doctor profile · Federal record
Dr. William Kornrich, MD
Internal Medicine Physician (CMS: Internal Medicine) · Riverhead, NY
- NPI 1144332198
- Accepts Medicare
- MIPS 84.5 / 100 · 2023
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
887 Old Country RD, Suite A
Riverhead, NY 119012115
(631) 727-6122
fax (631) 727-2672
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- March 10, 2021
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- New York #182977
- Medicaid
- NY #01265916
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144332198. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,857
Distinct HCPCS
10
Medicare allowed
$402,842
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,047 | 531 | $150 | |
36415 |
Insertion of needle into vein for collection of blood sample | 942 | 690 | $8 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 487 | 312 | $210 | |
99497 |
Advance care planning, first 30 minutes | 225 | 220 | $97 | |
90480 |
Admn sarscov2 vacc 1 dose | 157 | 157 | $47 | |
91320 |
Sarscv2 vac 30mcg trs-suc im | 157 | 157 | $128 | |
G0008 |
Administration of influenza virus vaccine | 147 | 144 | $35 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 147 | 147 | $152 | |
90662 |
Influenza vaccine split virus, preservative free | 135 | 133 | $72 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 91 | 91 | $107 |
In context: peer comparison
Among 4 peers in Riverhead Internal Medicine Physician, average services per provider: 205. This provider delivers 19× the peer median.Open Payments
Industry payments received
All-time total
$51
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 1 | $29.37 | |
| Abbvie INC. | 1 | $21.21 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,876
Patients
920
Total drug cost
$37,877
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 362 | 126 | $4,863 |
| Levothyroxine Sodium | Generic | 299 | 93 | $5,569 |
| Losartan Potassium | Generic | 250 | 82 | $3,112 |
| Amlodipine Besylate | Generic | 230 | 83 | $1,958 |
| Omeprazole | Generic | 210 | 69 | $3,158 |
| Pantoprazole Sodium | Generic | 195 | 64 | $2,862 |
| Simvastatin | Generic | 172 | 48 | $1,477 |
| Rosuvastatin Calcium | Generic | 168 | 57 | $2,542 |
| Escitalopram Oxalate | Generic | 163 | 46 | $1,929 |
| Lisinopril | Generic | 151 | 46 | $852 |
Hospital affiliations
Frequently asked questions
What is Dr. William Kornrich's medical specialty?
Dr. William Kornrich practices Internal Medicine Physician in Riverhead, NY.
Where does Dr. William Kornrich practice?
Dr. William Kornrich practices at 887 Old Country RD, Riverhead, NY 119012115. Office phone: 6317276122.
What is Dr. William Kornrich's NPI?
Dr. William Kornrich's National Provider Identifier (NPI) is 1144332198, issued by NPPES.
Does Dr. William Kornrich accept Medicare assignment?
Yes. Dr. William Kornrich accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Kornrich commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.