Doctor profile · Federal record

Dr. Katherine Niknia, MSN, NP

Nurse Practitioner · Nurse Practitioner · Fairfax, VA

  • NPI 1205842432
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
8081 Innovation Park Dr
Fairfax, VA 220314867
(571) 472-4724
fax (571) 472-0241
Additional location
3800 Reservoir RD Nw
Washington, DC 200072113
(202) 444-2198
Mailing address
Po Box 37174
Baltimore, MD 212973174

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
May 6, 2022
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
Virginia #0024178349 · District of Columbia #RN968239

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1205842432. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
124
Distinct HCPCS
2
Medicare allowed
$11,780
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 106 35 $88
99215 Established patient office or other outpatient visit, 40-54 minutes 18 18 $135

In context: peer comparison

Among 21 peers in Fairfax Nurse Practitioner, average services per provider: 91. This provider delivers 1.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
101
Patients
24
Total drug cost
$12,857
Drug Type Claims Patients Total cost
Famotidine Generic 23 0 $1,856
Levothyroxine Sodium Generic 17 0 $149
Ondansetron Hcl Generic 15 13 $809
Dexamethasone Generic 12 11 $209
Gabapentin Generic 12 0 $1,447
Eliquis (Apixaban) Brand 11 0 $7,940
Nystatin Generic 11 0 $447

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Niknia's medical specialty?
Dr. Katherine Niknia practices Nurse Practitioner in Fairfax, VA.
Where does Dr. Katherine Niknia practice?
Dr. Katherine Niknia practices at 8081 Innovation Park Dr, Fairfax, VA 220314867. Office phone: 5714724724.
What is Dr. Katherine Niknia's NPI?
Dr. Katherine Niknia's National Provider Identifier (NPI) is 1205842432, issued by NPPES.
Does Dr. Katherine Niknia accept Medicare assignment?
Yes. Dr. Katherine Niknia accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Niknia commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.