Kumaraswamy Sivakumar, M.D.
NPI 1821035254 · Neuromuscular Medicine (Psychiatry & Neurology) Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kumaraswamy Sivakumar, M.D. is a Neuromuscular Medicine (Psychiatry & Neurology) Physician provider in Phoenix, AZ (NPI 1821035254).
Provider details
- NPI number
- 1821035254
- Entity type
- Individual
- Primary specialty
- Neuromuscular Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25540 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
3,245 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) |
|---|---|---|
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 1,625 | $20 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 643 | $119 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 588 | $61 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 130 | $91 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 84 | $160 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 613 | 161 |
| Gabapentin | 253 | 66 |
| Azathioprine | 148 | 38 |
| Pyridostigmine Bromide | 146 | 50 |
| Baclofen | 106 | 36 |
| Cyclosporine, Modifiedbrand: Cyclosporine Modified | 93 | 20 |
| Riluzole | 79 | 28 |
| Tramadol Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$9,623 across 12 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
- 2006-06-02
- Last updated
- 2019-08-08
Frequently asked questions
- What is Kumaraswamy Sivakumar's NPI number?
- Kumaraswamy Sivakumar's National Provider Identifier (NPI) is 1821035254, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kumaraswamy Sivakumar's specialty?
- Kumaraswamy Sivakumar is listed in the NPPES registry with a primary specialty of Neuromuscular Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
- Where is Kumaraswamy Sivakumar located?
- Kumaraswamy Sivakumar's practice location on file with NPPES is 4545 E Shea Blvd, Phoenix, AZ 85028-3074.
- What is Kumaraswamy Sivakumar's phone number?
- The practice phone number listed in the NPPES registry for Kumaraswamy Sivakumar is (480) 314-1007.
- Does Kumaraswamy Sivakumar accept Medicare?
- Kumaraswamy Sivakumar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kumaraswamy Sivakumar's NPI active?
- Yes — Kumaraswamy Sivakumar's NPI (1821035254) is active in the NPPES registry as of the last update on 2019-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.