Doctor profile · Federal record
Dr. Katherine Maher, M.D.
Rheumatology Physician (CMS: Rheumatology) · Frederick, MD
- NPI 1225353865
- Accepts Medicare
- MIPS 77.1 / 100 · 2023
- 16 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 250
Rockville, MD 208508727
fax (301) 217-9241 - Mailing address
-
7361 Calhoun Pl Ste 600
Rockville, MD 208552788
Credentials & registration
- NPI registered
- April 2010 — 16 yrs on file
- Profile last updated
- February 17, 2026
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Maryland #D0088133
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225353865. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
23,750
Distinct HCPCS
10
Medicare allowed
$559,895
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 6,180 | 88 | $23 | |
J3111 |
Injection, romosozumab-aqqg, 1 mg | 5,670 | 20 | $10 | |
J1602 |
Injection, golimumab, 1 mg, for intravenous use | 2,950 | 12 | $13 | |
J7320 |
Hyaluronan or derivitive, genvisc 850, for intra-articular injection, 1 mg | 2,125 | 18 | $6 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 820 | 385 | $137 | |
J1745 |
Injection, infliximab, excludes biosimilar, 10 mg | 820 | 13 | $33 | |
Q5104 |
Injection, infliximab-abda, biosimilar, (renflexis), 10 mg | 590 | 11 | $34 | |
36415 |
Insertion of needle into vein for collection of blood sample | 461 | 284 | $8 | |
80053 |
Blood test, comprehensive group of blood chemicals | 396 | 248 | $10 | |
86140 |
Measurement c-reactive protein for detection of infection or inflammation | 343 | 203 | $5 |
In context: peer comparison
Among 4 peers in Frederick Rheumatology Physician, average services per provider: 1,394. This provider delivers 17× the peer median.Open Payments
Industry payments received
All-time total
$137
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 1 | $137.40 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
680
Patients
156
Total drug cost
$152,174
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 203 | 50 | $2,597 |
| Methotrexate (Methotrexate Sodium) | Brand | 100 | 27 | $3,561 |
| Hydroxychloroquine Sulfate | Generic | 72 | 29 | $7,423 |
| Gabapentin | Generic | 39 | 12 | $471 |
| Meloxicam | Generic | 39 | 16 | $362 |
| Duloxetine Hcl | Generic | 36 | 0 | $1,083 |
| Methylprednisolone | Generic | 36 | 22 | $690 |
| Tramadol Hcl | Generic | 34 | 0 | $187 |
| Alendronate Sodium | Generic | 24 | 0 | $261 |
| Allopurinol | Generic | 22 | 0 | $420 |
Hospital affiliations
Frequently asked questions
What is Dr. Katherine Maher's medical specialty?
Dr. Katherine Maher practices Rheumatology Physician in Frederick, MD.
Where does Dr. Katherine Maher practice?
Dr. Katherine Maher practices at 161 Thomas Johnson Dr Ste 250, Frederick, MD 217024958. Office phone: 3019427600.
What is Dr. Katherine Maher's NPI?
Dr. Katherine Maher's National Provider Identifier (NPI) is 1225353865, issued by NPPES.
Does Dr. Katherine Maher accept Medicare assignment?
Yes. Dr. Katherine Maher accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Maher commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Injection, romosozumab-aqqg, 1 mg (HCPCS J3111); Injection, golimumab, 1 mg, for intravenous use (HCPCS J1602). Source: CMS Medicare Physician & Other Practitioners file.