Doctor profile · Federal record
Dr. Nils Gaddis, DO
Internal Medicine Physician (CMS: Internal Medicine) · Alcoa, TN
- NPI 1447337696
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
266 Joule St
Alcoa, TN 377012422
(865) 984-3864
fax (865) 380-4095 - Mailing address
-
300 E McBee Ave Fl 4
Greenville, SC 296012842
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- October 27, 2025
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Tennessee #1563
- Medicaid
- TN #3307939
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447337696. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,012
Distinct HCPCS
10
Medicare allowed
$83,818
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 409 | 168 | $118 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 139 | 139 | $119 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 116 | 14 | $0 | |
96372 |
Injection of drug or substance under skin or into muscle | 53 | 20 | $13 | |
90662 |
Influenza vaccine split virus, preservative free | 45 | 45 | $72 | |
G0008 |
Administration of influenza virus vaccine | 45 | 45 | $28 | |
J0696 |
Injection, ceftriaxone sodium, per 250 mg | 44 | 11 | $1 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 43 | 34 | $83 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 29 | 21 | $165 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 27 | 25 | $13 |
In context: peer comparison
Among 6 peers in Alcoa Internal Medicine Physician, average services per provider: 183. This provider delivers 5.5× the peer median.Open Payments
Industry payments received
All-time total
$342
Transactions
20
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 5 | $84.25 | |
| Novo Nordisk INC | 3 | $52.71 | |
| Abbvie INC. | 2 | $45.77 | |
| Amgen INC. | 3 | $43.45 | |
| GlaxoSmithKline, LLC. | 2 | $30.81 | |
| Pfizer INC. | 1 | $20.37 | |
| Astellas Pharma US INC | 1 | $19.57 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $16.21 | |
| Exact Sciences Corporation | 1 | $14.37 | |
| Merck Sharp & Dohme LLC | 1 | $14.06 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,008
Patients
850
Total drug cost
$167,409
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 530 | 149 | $7,820 |
| Amlodipine Besylate | Generic | 330 | 95 | $1,641 |
| Levothyroxine Sodium | Generic | 320 | 78 | $5,322 |
| Rosuvastatin Calcium | Generic | 259 | 78 | $4,326 |
| Omeprazole | Generic | 199 | 59 | $2,155 |
| Losartan Potassium | Generic | 182 | 46 | $2,567 |
| Irbesartan | Generic | 175 | 52 | $8,376 |
| Pantoprazole Sodium | Generic | 159 | 47 | $2,441 |
| Hydrochlorothiazide | Generic | 151 | 37 | $816 |
| Sertraline Hcl | Generic | 129 | 38 | $1,049 |
Hospital affiliations
Frequently asked questions
What is Dr. Nils Gaddis's medical specialty?
Dr. Nils Gaddis practices Internal Medicine Physician in Alcoa, TN.
Where does Dr. Nils Gaddis practice?
Dr. Nils Gaddis practices at 266 Joule St, Alcoa, TN 377012422. Office phone: 8659843864.
What is Dr. Nils Gaddis's NPI?
Dr. Nils Gaddis's National Provider Identifier (NPI) is 1447337696, issued by NPPES.
Does Dr. Nils Gaddis accept Medicare assignment?
Yes. Dr. Nils Gaddis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nils Gaddis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100). Source: CMS Medicare Physician & Other Practitioners file.