Physician Profile
Maria Chou, MD practices rheumatology in Reston, VA. Maria is a 1999 graduate of New York Medical College. According to Medicare claims data, Maria cared for 2,303 Medicare patients across 16,420 services. The services billed most often include injection, methylprednisolone acetate, 1 mg, injection, denosumab, 1 mg, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1860 TOWN CENTER DR #130
Reston, VA 20190
Within Rheumatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Autoimmune
Bone
Bone Health
Connective Tissue
Genetic & Connective Tissue
Inflammatory
Joints
Nerve & Tendon
Skin & Soft Tissue
Skin & Vascular
Soft Tissue
Spine & Back
Vascular
Most searched procedures
Consultation
Consultations
Diagnostics & Injections
Education & Support
Imaging
Injections
Lab & Diagnostics
Lab Work
Medication Management
Pain Relief
Regenerative Medicine
16,420 services · 2,303 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
221 | More often than most peers in Rheumatology |
| Complete ultrasound scan of joint | Imaging | 76881 |
139 | More often than most peers in Rheumatology |
| Limited ultrasound scan of joint or other extremity structure except blood vessels | Imaging | 76882 |
53 | As often as other peers in Rheumatology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
125 | As often as other peers in Rheumatology |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
49 | Too few peers to compare |
| Influenza vaccine, inactivated | Treatment | 90653 |
44 | More often than most peers in Rheumatology |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
28 | Too few peers to compare |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
10,142 | More than most peers in Rheumatology |
| Injection, denosumab, 1 mg | Drug given | J0897 |
3,000 | As often as other peers in Rheumatology |
| Hyaluronan or derivative, gel-one, for intra-articular injection, per dose | Drug given | J7326 |
87 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Chou is a rheumatologist in Reston, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Rheumatology”.
NPI registry
Dr. Chou is listed at 1860 Town Center Dr #130, Reston, VA 20190. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (703) 709-9174. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Chou's National Provider Identifier is 1689738452. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Chou attended New York Medical College, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
Dr. Chou has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Chou performs procedures including aspiration and/or injection of fluid large joint using ultrasound guidance; reads or performs imaging such as complete ultrasound scan of joint and limited ultrasound scan of joint or other extremity structure except blood vessels; provides treatments such as injection of drug or substance under skin or into muscle and admn sarscov2 vacc 1 dose, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chou. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.