Doctor profile · Federal record
Dr. Grant Louie, M.D.
Rheumatology Physician (CMS: Rheumatology) · Rheumatology Physician · Frederick, MD
- NPI 1306013214
- Accepts Medicare
- MIPS 77.1 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
161 Thomas Johnson Dr Ste 250
Frederick, MD 217024958
(301) 942-7600
fax (301) 694-0187 - Mailing address
-
7361 Calhoun Pl Ste 600
Rockville, MD 208552788
Credentials & registration
- NPI registered
- May 2008 — 18 yrs on file
- Profile last updated
- February 5, 2026
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State licenses (2)
- Maryland #D0071182 · Maryland #D71182
- Medicaid
- MD #036428200
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306013214. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
141,093
Distinct HCPCS
10
Medicare allowed
$2,617,199
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3262 |
Injection, tocilizumab, 1 mg | 55,093 | 17 | $6 | |
J3111 |
Injection, romosozumab-aqqg, 1 mg | 18,480 | 23 | $10 | |
J2182 |
Injection, mepolizumab, 1 mg | 13,200 | 12 | $29 | |
J0897 |
Injection, denosumab, 1 mg | 12,420 | 144 | $23 | |
J1602 |
Injection, golimumab, 1 mg, for intravenous use | 11,000 | 19 | $13 | |
J0129 |
Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) | 10,900 | 18 | $42 | |
J1745 |
Injection, infliximab, excludes biosimilar, 10 mg | 7,639 | 27 | $33 | |
Q5104 |
Injection, infliximab-abda, biosimilar, (renflexis), 10 mg | 2,750 | 21 | $36 | |
J9312 |
Injection, rituximab, 10 mg | 2,350 | 13 | $80 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 853 | 435 | $130 |
In context: peer comparison
Among 4 peers in Frederick Rheumatology Physician, average services per provider: 1,394. This provider delivers 101× the peer median.Open Payments
Industry payments received
All-time total
$132
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 1 | $116.10 | |
| Radius Health, INC. | 1 | $15.76 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,279
Patients
318
Total drug cost
$659,049
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 292 | 70 | $10,346 |
| Hydroxychloroquine Sulfate | Generic | 255 | 67 | $17,680 |
| Prednisone | Generic | 223 | 59 | $2,111 |
| Gabapentin | Generic | 62 | 14 | $1,017 |
| Alendronate Sodium | Generic | 56 | 21 | $765 |
| Tramadol Hcl | Generic | 56 | 16 | $478 |
| Meloxicam | Generic | 53 | 16 | $322 |
| Celecoxib | Generic | 44 | 16 | $1,688 |
| Allopurinol | Generic | 43 | 13 | $697 |
| Humira(Cf) Pen (Adalimumab) | Brand | 40 | 0 | $361,397 |
Hospital affiliations
Frequently asked questions
What is Dr. Grant Louie's medical specialty?
Dr. Grant Louie practices Rheumatology Physician in Frederick, MD.
Where does Dr. Grant Louie practice?
Dr. Grant Louie practices at 161 Thomas Johnson Dr Ste 250, Frederick, MD 217024958. Office phone: 3019427600.
What is Dr. Grant Louie's NPI?
Dr. Grant Louie's National Provider Identifier (NPI) is 1306013214, issued by NPPES.
Does Dr. Grant Louie accept Medicare assignment?
Yes. Dr. Grant Louie accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Grant Louie commonly perform?
Top Medicare-reported procedures in 2023: Injection, tocilizumab, 1 mg (HCPCS J3262); Injection, romosozumab-aqqg, 1 mg (HCPCS J3111); Injection, mepolizumab, 1 mg (HCPCS J2182). Source: CMS Medicare Physician & Other Practitioners file.