Janakiraman Subramanian, MD
NPI 1366589343 · Medical Oncology Physician · Fairfax, VA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janakiraman Subramanian, MD is a Medical Oncology Physician provider in Fairfax, VA (NPI 1366589343).
Provider details
- NPI number
- 1366589343
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101273491 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
440 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 | 183 | $104 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 156 | $154 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 25 | $83 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 24 | $122 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 20 | $196 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dexamethasone | 40 | 27 |
| Osimertinib Mesylatebrand: Tagrisso | 38 | — |
| Ondansetron Hcl | 29 | 22 |
| Prochlorperazine Maleate | 26 | 19 |
| Pantoprazole Sodium | 19 | — |
| Gabapentin | 16 | — |
| Oxycodone Hcl | 16 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$125,332 across 114 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
Additional practice locations (1)
- 4321 Washington StSuite 4000Kansas City, MO 64111-5961Phone: (816) 932-3300Fax: (816) 932-7957
Registry dates
- Enumerated
- 2007-01-31
- Last updated
- 2022-04-15
- Certified
- 2022-04-15
Frequently asked questions
- What is Janakiraman Subramanian's NPI number?
- Janakiraman Subramanian's National Provider Identifier (NPI) is 1366589343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janakiraman Subramanian's specialty?
- Janakiraman Subramanian is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Janakiraman Subramanian located?
- Janakiraman Subramanian's practice location on file with NPPES is 8081 Innovation Park Dr, Fairfax, VA 22031-4867.
- What is Janakiraman Subramanian's phone number?
- The practice phone number listed in the NPPES registry for Janakiraman Subramanian is (571) 472-4724.
- Does Janakiraman Subramanian accept Medicare?
- Janakiraman Subramanian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janakiraman Subramanian's NPI active?
- Yes — Janakiraman Subramanian's NPI (1366589343) is active in the NPPES registry as of the last update on 2022-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.