Physician Profile
Unclaimed ProfileAbout RATNARAJAH
Daniel Mahendran Ratnarajah, MD is a healthcare provider in Oneida, NY specializing in internal medicine. According to Medicare claims data, Daniel cared for 425 Medicare patients across 700 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (315) 363-1345
- Email not available
Practice Locations
ONEIDA MEDICAL ASSOCIATES PLLC 600 SENECA STREET
Oneida, NY 13421
Procedures Most Often Billed to Medicare
700 services · 425 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
58 |
| Influenza vaccine, inactivated | Treatment | 90653 |
35 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
56 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
250 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
84 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
84 |
| Stool analysis for blood, by fecal hemoglobin determination by immunoassay | Lab test | 82274 |
56 |
| Administration of influenza virus vaccine | Billing code | G0008 |
36 |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
27 |
| Nursing facility discharge day management, 30 minutes or less | Office visit | 99315 |
14 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines in Oneida 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at Other 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Injection of drug or substance under skin or into muscle 8
Providers in NY who bill this service to Medicare most often.
Common questions
What does Dr. Ratnarajah specialize in?
Dr. Ratnarajah is an internal medicine in Oneida, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Ratnarajah located?
Dr. Ratnarajah is listed at ONEIDA MEDICAL ASSOCIATES PLLC 600 SENECA STREET, Oneida, NY 13421. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ratnarajah's phone number?
The number on file is (315) 363-1345. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Ratnarajah's NPI number?
Dr. Ratnarajah's National Provider Identifier is 1023043858. 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
Where did Dr. Ratnarajah go to medical school?
Dr. Ratnarajah attended Other, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ratnarajah been practicing?
Dr. Ratnarajah has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ratnarajah do most often?
According to Medicare billing data, Dr. Ratnarajah provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine, inactivated, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Ratnarajah confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ratnarajah. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.