Doctor profile · Federal record
Dr. Louisa Ziglar, MD
Rheumatology Physician (CMS: Rheumatology) · Frederick, MD
- NPI 1538336151
- Accepts Medicare
- 24 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
161 Thomas Johnson Dr Ste 250
Frederick, MD 217024958
(301) 942-7600
fax (301) 694-0187 - Additional location
-
14995 Shady Grove RD Ste 500
Rockville, MD 208508726
fax (301) 774-1799 - 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
- 2002 — 24 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Maryland #D80134
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538336151. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
21,807
Distinct HCPCS
10
Medicare allowed
$535,801
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3111 |
Injection, romosozumab-aqqg, 1 mg | 8,400 | 20 | $10 | |
J0897 |
Injection, denosumab, 1 mg | 5,400 | 82 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,078 | 472 | $134 | |
Q5104 |
Injection, infliximab-abda, biosimilar, (renflexis), 10 mg | 858 | 12 | $35 | |
36415 |
Insertion of needle into vein for collection of blood sample | 810 | 429 | $8 | |
80053 |
Blood test, comprehensive group of blood chemicals | 774 | 412 | $10 | |
86140 |
Measurement c-reactive protein for detection of infection or inflammation | 552 | 275 | $5 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 494 | 271 | $7 | |
85652 |
Red blood cell sedimentation rate, to detect inflammation, automated | 468 | 253 | $3 | |
86160 |
Measurement of complement (immune system proteins), antigen, | 262 | 73 | $11 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 1,394. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$194
Transactions
5
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 2 | $143.98 | |
| AstraZeneca Pharmaceuticals LP | 2 | $35.42 | |
| Amgen Inc. | 1 | $14.69 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,073
Patients
375
Total drug cost
$344,992
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 191 | 60 | $7,300 |
| Prednisone | Generic | 166 | 62 | $1,867 |
| Hydroxychloroquine Sulfate | Generic | 142 | 48 | $12,982 |
| Alendronate Sodium | Generic | 135 | 59 | $1,867 |
| Tramadol Hcl | Generic | 79 | 22 | $711 |
| Meloxicam | Generic | 56 | 18 | $355 |
| Duloxetine Hcl | Generic | 47 | 21 | $1,659 |
| Cyclobenzaprine Hcl | Generic | 46 | 20 | $849 |
| Leucovorin Calcium | Generic | 41 | 14 | $4,346 |
| Humira(Cf) Pen (Adalimumab) | Brand | 33 | 0 | $306,034 |
Hospital affiliations
Frequently asked questions
What is Dr. Louisa Ziglar's medical specialty?
Dr. Louisa Ziglar practices Rheumatology Physician in Frederick, MD.
Where does Dr. Louisa Ziglar practice?
Dr. Louisa Ziglar practices at 161 Thomas Johnson Dr Ste 250, Frederick, MD 217024958. Office phone: 3019427600.
What is Dr. Louisa Ziglar's NPI?
Dr. Louisa Ziglar's National Provider Identifier (NPI) is 1538336151, issued by NPPES.
Does Dr. Louisa Ziglar accept Medicare assignment?
Yes. Dr. Louisa Ziglar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Louisa Ziglar commonly perform?
Top Medicare-reported procedures in 2023: Injection, romosozumab-aqqg, 1 mg (HCPCS J3111); Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.