Doctor profile · Federal record
Dr. Nathan Kopydlowski, M.D.
Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Grafton, WI
- NPI 1255712741
- Accepts Medicare
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
975 Port Washington RD
Grafton, WI 530249201
(262) 329-1000 - Mailing address
-
Po Box 735044
Chicago, IL 606735044
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- September 2, 2025
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207X00000X — NUCC code
- State license (1)
- Wisconsin #22741
- Medicaid
- WI #100212401
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255712741. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,322
Distinct HCPCS
7
Medicare allowed
$31,835
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 936 | 78 | $1 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 176 | 116 | $77 | |
20610 |
Aspiration and/or injection of fluid from large joint | 100 | 77 | $57 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 65 | 65 | $98 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 19 | 19 | $144 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 15 | 15 | $113 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 11 | 11 | $65 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 151. This provider delivers 8.8× the peer median.Open Payments
Industry payments received
All-time total
$363
Transactions
3
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Stryker Corporation | 3 | $363.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
433
Patients
281
Total drug cost
$4,218
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Meloxicam | Generic | 141 | 72 | $391 |
| Naproxen | Generic | 111 | 63 | $1,138 |
| Diclofenac Sodium | Generic | 50 | 39 | $2,368 |
| Oxycodone Hcl | Generic | 36 | 30 | $111 |
| Gabapentin | Generic | 30 | 27 | $92 |
| Metoclopramide Hcl | Generic | 30 | 28 | $52 |
| Omeprazole | Generic | 23 | 22 | $52 |
| Amoxicillin | Generic | 12 | 0 | $14 |
Hospital affiliations
Frequently asked questions
What is Dr. Nathan Kopydlowski's medical specialty?
Dr. Nathan Kopydlowski practices Orthopaedic Surgery Physician in Grafton, WI.
Where does Dr. Nathan Kopydlowski practice?
Dr. Nathan Kopydlowski practices at 975 Port Washington RD, Grafton, WI 530249201. Office phone: 2623291000.
What is Dr. Nathan Kopydlowski's NPI?
Dr. Nathan Kopydlowski's National Provider Identifier (NPI) is 1255712741, issued by NPPES.
Does Dr. Nathan Kopydlowski accept Medicare assignment?
Yes. Dr. Nathan Kopydlowski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathan Kopydlowski commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Established patient office or other outpatient visit (HCPCS 99213); Aspiration and/or injection of fluid from large joint (HCPCS 20610). Source: CMS Medicare Physician & Other Practitioners file.