Doctor profile · Federal record
Dr. Louis Diehl, M.D.
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Durham, NC
- NPI 1275616427
- Accepts Medicare
- 51 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Duke University Medical Ctr
Durham, NC 277100001
(919) 620-4467
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- September 7, 2013
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- North Carolina #2004-00491
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275616427. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
498
Distinct HCPCS
4
Medicare allowed
$48,008
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 225 | 55 | $108 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 211 | 51 | $73 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 37 | 33 | $157 | |
99239 |
Hospital discharge day management, more than 30 minutes | 25 | 22 | $100 |
In context: peer comparison
Among 18 peers in Durham Hematology & Oncology Physician, average services per provider: 351. This provider delivers 1.4× the peer median.Frequently asked questions
What is Dr. Louis Diehl's medical specialty?
Dr. Louis Diehl practices Hematology & Oncology Physician in Durham, NC.
Where does Dr. Louis Diehl practice?
Dr. Louis Diehl practices at Duke University Medical Ctr, Durham, NC 277100001. Office phone: 9196204467.
What is Dr. Louis Diehl's NPI?
Dr. Louis Diehl's National Provider Identifier (NPI) is 1275616427, issued by NPPES.
Does Dr. Louis Diehl accept Medicare assignment?
Yes. Dr. Louis Diehl accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Louis Diehl commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.