Doctor profile · Federal record
Dr. John Nnadi, MD
Infectious Disease Physician (CMS: Internal Medicine) · Internal Medicine Physician · Internal Medicine Physician · Infectious Disease Physician · Infectious Disease Physician · Baton Rouge, LA
- NPI 1558506782
- Accepts Medicare
- 27 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
17000 Medical Center Dr
Baton Rouge, LA 708163246
(225) 752-2470 - Additional location
-
5000 Hennessy Blvd
Baton Rouge, LA 708084375
(225) 765-5864
fax (225) 765-2013 - Additional location
-
7777 Hennessy Blvd Ste 701
Baton Rouge, LA 708084370
(225) 765-5864
fax (225) 765-2013 - Mailing address
-
2925 Tradition Ave
Baton Rouge, LA 708100336
Credentials & registration
- NPI registered
- December 2008 — 18 yrs on file
- Profile last updated
- November 17, 2022
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RI0200X — NUCC code
- State licenses (3)
- Louisiana #MD.202997 · Mississippi #20962 · Delaware #C1-0025159
- Medicaid
- LA #1883115
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558506782. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
619
Distinct HCPCS
7
Medicare allowed
$64,290
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 196 | 96 | $76 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 165 | 91 | $114 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 114 | 64 | $93 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 89 | 76 | $164 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 28 | 15 | $112 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $122 | |
99451 |
Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes | 13 | 13 | $34 |
In context: peer comparison
Among 5 peers in Baton Rouge Infectious Disease Physician, average services per provider: 83. This provider delivers 7.5× the peer median.Open Payments
Industry payments received
All-time total
$17
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ViiV Healthcare Company | 1 | $17.18 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
657
Patients
139
Total drug cost
$686,599
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Daptomycin | Generic | 61 | 17 | $39,168 |
| Azithromycin | Generic | 59 | 16 | $1,837 |
| Doxycycline Hyclate | Generic | 54 | 26 | $971 |
| Biktarvy (Bictegrav/Emtricit/Tenofov Ala) | Brand | 52 | 0 | $213,742 |
| Tivicay (Dolutegravir Sodium) | Brand | 52 | 0 | $139,934 |
| Dovato (Dolutegravir Sodium/Lamivudine) | Brand | 48 | 0 | $140,001 |
| Ceftriaxone (Ceftriaxone Sodium) | Brand | 46 | 14 | $3,325 |
| Ertapenem (Ertapenem Sodium) | Brand | 46 | 0 | $26,206 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 42 | 22 | $586 |
| Ethambutol Hcl | Generic | 37 | 12 | $1,722 |
Hospital affiliations
Frequently asked questions
What is Dr. John Nnadi's medical specialty?
Dr. John Nnadi practices Infectious Disease Physician in Baton Rouge, LA.
Where does Dr. John Nnadi practice?
Dr. John Nnadi practices at 17000 Medical Center Dr, Baton Rouge, LA 708163246. Office phone: 2257522470.
What is Dr. John Nnadi's NPI?
Dr. John Nnadi's National Provider Identifier (NPI) is 1558506782, issued by NPPES.
Does Dr. John Nnadi accept Medicare assignment?
Yes. Dr. John Nnadi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Nnadi commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.