Caroline D'Souza, M.D.
NPI 1205099678 · Rheumatology Physician · Dulles, VA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline D'Souza, M.D. is a Rheumatology Physician provider in Dulles, VA (NPI 1205099678).
Provider details
- NPI number
- 1205099678
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- P22737 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
553 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 337 | $122 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 103 | $14 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 59 | $160 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 43 | $87 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 11 | $108 |
Typical Medicare-allowed amounts for these services range $14–$160 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 191 | 61 |
| Hydroxychloroquine Sulfate | 145 | 54 |
| Prednisone | 115 | 42 |
| Sulfasalazine | 95 | 29 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 40 | — |
| Gabapentin | 37 | 13 |
| Folic Acid |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$749 across 40 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-07
- Last updated
- 2025-04-22
- Certified
- 2025-04-22
Frequently asked questions
- What is Caroline D'Souza's NPI number?
- Caroline D'Souza's National Provider Identifier (NPI) is 1205099678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline D'Souza's specialty?
- Caroline D'Souza is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Caroline D'Souza located?
- Caroline D'Souza's practice location on file with NPPES is 24430 Stone Springs Blvd, Suite 570, Dulles, VA 20166-2268.
- What is Caroline D'Souza's phone number?
- The practice phone number listed in the NPPES registry for Caroline D'Souza is (571) 302-4140.
- Does Caroline D'Souza accept Medicare?
- Caroline D'Souza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline D'Souza's NPI active?
- Yes — Caroline D'Souza's NPI (1205099678) is active in the NPPES registry as of the last update on 2025-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.