Doctor profile · Federal record
Dr. David Irizarry, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Knoxville, TN
- NPI 1518282839
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 16 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1450 Dowell Springs Blvd Ste 300
Knoxville, TN 379092444
(865) 637-8812
fax (865) 637-8865 - Additional location
-
266 Joule St
Alcoa, TN 377012422
(865) 984-3864
fax (865) 380-4095 - Mailing address
-
103 W Broadway Ave
Maryville, TN 378014703
Credentials & registration
- NPI registered
- March 2010 — 16 yrs on file
- Profile last updated
- March 31, 2025
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- Tennessee #MD58106
- Medicaid
- TN #Q045295
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518282839. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
408
Distinct HCPCS
5
Medicare allowed
$44,579
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 261 | 131 | $114 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 52 | 21 | $31 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 49 | 34 | $153 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 32 | 32 | $143 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 14 | 14 | $79 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 245. This provider delivers 1.7× the peer median.Open Payments
Industry payments received
All-time total
$9,624
Transactions
71
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk Inc | 12 | $8,156.18 | |
| Amgen Inc. | 9 | $293.74 | |
| Lilly USA, LLC | 11 | $212.33 | |
| SANOFI-AVENTIS U.S. LLC | 8 | $138.55 | |
| Xeris Pharmaceuticals, Inc. | 5 | $96.91 | |
| BETA BIONICS, INC. | 5 | $96.04 | |
| Dexcom, Inc. | 4 | $79.84 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 4 | $56.84 | |
| Radius Health, Inc. | 2 | $55.28 | |
| Corcept Therapeutics | 2 | $49.01 | |
| Insulet Corporation | 2 | $45.69 | |
| Esperion Therapeutics, Inc. | 2 | $40.49 | |
| Novartis Pharmaceuticals Corporation | 2 | $40.23 | |
| Tolmar, Inc. | 2 | $31.99 | |
| Tandem Diabetes Care, Inc. | 1 | $28.23 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
999
Patients
273
Total drug cost
$213,174
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 264 | 77 | $4,366 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 114 | 40 | $2,238 |
| Methimazole | Generic | 90 | 32 | $1,703 |
| Ozempic (Semaglutide) | Brand | 68 | 23 | $114,245 |
| Rosuvastatin Calcium | Generic | 63 | 19 | $837 |
| Glipizide Er (Glipizide) | Brand | 61 | 21 | $892 |
| Unithroid (Levothyroxine Sodium) | Brand | 57 | 15 | $2,853 |
| Synthroid (Levothyroxine Sodium) | Brand | 51 | 14 | $6,653 |
| Liothyronine Sodium | Generic | 41 | 16 | $2,001 |
| Alendronate Sodium | Generic | 38 | 16 | $394 |
Frequently asked questions
What is Dr. David Irizarry's medical specialty?
Dr. David Irizarry practices Endocrinology, Diabetes & Metabolism Physician in Knoxville, TN.
Where does Dr. David Irizarry practice?
Dr. David Irizarry practices at 1450 Dowell Springs Blvd Ste 300, Knoxville, TN 379092444. Office phone: 8656378812.
What is Dr. David Irizarry's NPI?
Dr. David Irizarry's National Provider Identifier (NPI) is 1518282839, issued by NPPES.
Does Dr. David Irizarry accept Medicare assignment?
Yes. Dr. David Irizarry accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Irizarry commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.