Daniel Rajaratnam, PA-C
NPI 1669650180 · Physician Assistant · Lancaster, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Rajaratnam, PA-C is a Physician Assistant provider in Lancaster, CA (NPI 1669650180).
Provider details
- NPI number
- 1669650180
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1067589 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
96 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 65 | $103 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 31 | $149 |
Typical Medicare-allowed amounts for these services range $103–$149 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 38 | 38 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 30 | 30 |
| Ibuprofen | 19 | 19 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 19 | 19 |
| Prednisone | 16 | 16 |
| Tramadol Hcl | 16 | 16 |
| Ondansetronbrand: Ondansetron Odt |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-02-06
- Last updated
- 2024-05-07
Frequently asked questions
- What is Daniel Rajaratnam's NPI number?
- Daniel Rajaratnam's National Provider Identifier (NPI) is 1669650180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Rajaratnam's specialty?
- Daniel Rajaratnam is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Daniel Rajaratnam located?
- Daniel Rajaratnam's practice location on file with NPPES is 1600 W Avenue J, Lancaster, CA 93534-2814.
- What is Daniel Rajaratnam's phone number?
- The practice phone number listed in the NPPES registry for Daniel Rajaratnam is (661) 726-6225.
- Does Daniel Rajaratnam accept Medicare?
- Daniel Rajaratnam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Rajaratnam's NPI active?
- Yes — Daniel Rajaratnam's NPI (1669650180) is active in the NPPES registry as of the last update on 2024-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.