Nadarajah Nirmalan, MD
NPI 1043311699 · Internal Medicine Physician · St Petersburg, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nadarajah Nirmalan, MD is a Internal Medicine Physician provider in St Petersburg, FL (NPI 1043311699).
Provider details
- NPI number
- 1043311699
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME0074565 (FL)
Specialties & taxonomies
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,493 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 505 | $93 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 335 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 184 | $131 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 119 | $15 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 90 | $180 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 214 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 612 | 74 |
| Atorvastatin Calcium | 593 | 139 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 467 | 54 |
| Levothyroxine Sodium | 457 | 95 |
| Gabapentin | 432 | 74 |
| Lisinopril | 430 | 98 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$224 across 10 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
- 2006-09-26
- Last updated
- 2009-03-05
Frequently asked questions
- What is Nadarajah Nirmalan's NPI number?
- Nadarajah Nirmalan's National Provider Identifier (NPI) is 1043311699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nadarajah Nirmalan's specialty?
- Nadarajah Nirmalan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nadarajah Nirmalan located?
- Nadarajah Nirmalan's practice location on file with NPPES is 3831 16th St N, St Petersburg, FL 33703-5601.
- What is Nadarajah Nirmalan's phone number?
- The practice phone number listed in the NPPES registry for Nadarajah Nirmalan is (727) 527-2139.
- Does Nadarajah Nirmalan accept Medicare?
- Nadarajah Nirmalan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nadarajah Nirmalan's NPI active?
- Yes — Nadarajah Nirmalan's NPI (1043311699) is active in the NPPES registry as of the last update on 2009-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.