Doctor profile · Federal record
Dr. Nathaniel Laden, M.D., M.S.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (CMS: Thoracic Surgery) · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Milwaukee, WI
- NPI 1356316889
- Accepts Medicare
- MIPS 82.6 / 100 · 2023
- 38 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9200 W Wisconsin Ave, Cardiothoracic Surgery
Milwaukee, WI 532263522
(414) 955-6900
fax (414) 955-6204
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- May 2, 2016
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 208G00000X — NUCC code
- State licenses (2)
- Wisconsin #18081 · Ohio #35.071969L
- Medicaid
- OH #2097065
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356316889. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
134
Distinct HCPCS
2
Medicare allowed
$21,602
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 121 | 119 | $165 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 13 | 13 | $124 |
In context: peer comparison
Among 6 peers in Milwaukee Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, average services per provider: 39. This provider delivers 3.4× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Nathaniel Laden's medical specialty?
Dr. Nathaniel Laden practices Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Milwaukee, WI.
Where does Dr. Nathaniel Laden practice?
Dr. Nathaniel Laden practices at 9200 W Wisconsin Ave, Milwaukee, WI 532263522. Office phone: 4149556900.
What is Dr. Nathaniel Laden's NPI?
Dr. Nathaniel Laden's National Provider Identifier (NPI) is 1356316889, issued by NPPES.
Does Dr. Nathaniel Laden accept Medicare assignment?
Yes. Dr. Nathaniel Laden accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathaniel Laden commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.