Doctor profile · Federal record
Dr. David Armstrong, D.O.
Rheumatology Physician · Internal Medicine Physician · Rheumatology Physician · Rheumatology Physician · Louisville, KY
- NPI 1487852349
- MIPS 73.2 / 100 · 2023
- 19 yrs on file
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
401 E Chestnut St Unit 310
Louisville, KY 402025703
(502) 588-4600 - Mailing address
-
Po Box 909
Louisville, KY 402010909
Credentials & registration
- NPI registered
- July 2007 — 19 yrs on file
- Profile last updated
- June 14, 2022
- Specialty taxonomy
- 207RR0500X — NUCC code
- State licenses (3)
- Kentucky #TP821 · Pennsylvania #OS014098 · Wyoming #10351A
- Medicaid
- WY #1487852349
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1487852349. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
62
Distinct HCPCS
2
Medicare allowed
$8,812
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 36 | 36 | $158 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 26 | 21 | $121 |
In context: peer comparison
Among 13 peers in Louisville Rheumatology Physician, average services per provider: 4,733. This provider delivers 0.0× the peer median.Open Payments
Industry payments received
All-time total
$63
Transactions
3
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Pfizer INC. | 1 | $27.47 | |
| Abbvie INC. | 1 | $21.70 | |
| Janssen Biotech, INC. | 1 | $14.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
597
Patients
237
Total drug cost
$397,344
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydroxychloroquine Sulfate | Generic | 117 | 58 | $10,767 |
| Leflunomide | Generic | 78 | 28 | $8,323 |
| Prednisone | Generic | 78 | 36 | $1,070 |
| Allopurinol | Generic | 75 | 35 | $1,855 |
| Methotrexate (Methotrexate Sodium) | Brand | 64 | 33 | $3,425 |
| Meloxicam | Generic | 31 | 20 | $511 |
| Mycophenolate Mofetil | Generic | 27 | 0 | $6,374 |
| Sulfasalazine Dr (Sulfasalazine) | Brand | 25 | 13 | $909 |
| Colchicine | Generic | 22 | 14 | $1,974 |
| Rinvoq (Upadacitinib) | Brand | 22 | 0 | $147,024 |
Frequently asked questions
What is Dr. David Armstrong's medical specialty?
Dr. David Armstrong practices Rheumatology Physician in Louisville, KY.
Where does Dr. David Armstrong practice?
Dr. David Armstrong practices at 401 E Chestnut St Unit 310, Louisville, KY 402025703. Office phone: 5025884600.
What is Dr. David Armstrong's NPI?
Dr. David Armstrong's National Provider Identifier (NPI) is 1487852349, issued by NPPES.
What procedures does Dr. David Armstrong commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.