Daniel Rajaratnam, PA-C
- Medicare services, 2024
- 96
- Medicare patients, 2024
- 98
- Part D claims, 2024
- 376
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- Practice address
- 1600 W Ave J, Lancaster, CA 93534
- Practice phone
- Call (661) 949-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Daniel Rajaratnam is a physician assistant in Lancaster, California
Daniel Rajaratnam practices at Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District.
Daniel Rajaratnam's NPI, 1669650180, was assigned on February 6, 2008. Daniel Rajaratnam holds California license 1067589.
- NPI
- 1669650180NPI Registry (opens in a new tab)
- NPI enumeration date
- February 6, 2008
- NPI status
- Active
- Practice phone
- (661) 949-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Daniel Rajaratnam practices at Antelope Valley Medical Center in Lancaster, California
Daniel Rajaratnam's primary practice is Antelope Valley Medical Center, at 1600 W Ave J, Lancaster, CA 93534 in Los Angeles County. The practice phone is (661) 949-5500.
- Antelope Valley Medical Center1600 W Ave J, Lancaster, CA 93534 · Los Angeles CountyPhone(661) 949-5500
Source: Dmand AI Affiliation Data
Daniel Rajaratnam is affiliated with 1 site of care and 1 medical group
Daniel Rajaratnam's primary practice is Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District. The medical group on file is Antelope Valley Emergency Medical Associates.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Daniel Rajaratnam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Daniel Rajaratnam practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Antelope Valley Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Antelope Valley Healthcare District and 6.2K+ hospitals, with verified contacts in the same login.
Daniel Rajaratnam is one of 11,482 physician assistants in California
Physician assistant is Daniel Rajaratnam's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Daniel Rajaratnam is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Daniel Rajaratnam is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Daniel Rajaratnam
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Daniel Rajaratnam billed Medicare for 96 services in 2024
CMS data shows 96 Medicare services from Daniel Rajaratnam across 2 procedure codes in 2024, for 98 Medicare patients. Medicare paid $8,306 for them. Every service was in a facility, such as a hospital, rather than an office.
Daniel Rajaratnam compared with the California median for physician assistants, 2024
- Daniel Rajaratnam
- California median
- Medicare services
- 96vs 20453% below
- Medicare patients
- 98vs 1057% below
- Part D claims
- 180vs 24326% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Daniel Rajaratnam's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Daniel Rajaratnam?
Medicare shows one payer. Book a meeting to get commercial claims data for Daniel Rajaratnam and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Daniel Rajaratnam treated 98 Medicare patients in 2024, average age 62
CMS counts 98 Medicare patients who saw Daniel Rajaratnam in 2024. The largest group is 65 to 74, with 44 patients. 68% of them have high blood pressure, and 59% have high cholesterol. 84% are also on Medicaid. Their average risk score is 1.84, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Daniel Rajaratnam's median patient age at 36, with 63% women.
Daniel Rajaratnam's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Daniel Rajaratnam's Medicare patients by sex, 2024
- Women6061%
- Men3839%
Chronic conditions among Daniel Rajaratnam's Medicare patients, 2024
- High blood pressure68%
- High cholesterol59%
- Arthritis54%
- Diabetes41%
- Mood disorders40%
- Anxiety36%
- Tobacco use33%
- Alcohol and drug use disorders32%
Share of Medicare patients with each condition. A patient can have several.
Daniel Rajaratnam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Daniel Rajaratnam wrote 376 Medicare Part D claims in 2024
In 2024, Daniel Rajaratnam wrote 376 Medicare Part D claims for 244 patients. 92% of them were for generic drugs. CMS names the drug for 180 of them, across 9 drugs with 11 or more claims each, at $1,149 in total drug cost.
Daniel Rajaratnam's Part D claims by kind of drug, 2024
- Generic345 claims92%
- Brand-name and other31 claims8%
Daniel Rajaratnam's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Daniel Rajaratnam's Part D claims, 2024
- Opioids19%73 of 376 claims
- Antibiotics28%107 of 376 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Daniel Rajaratnam scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Daniel Rajaratnam for performance year 2024, reported as part of a group.
Daniel Rajaratnam's MIPS scores, performance year 2024
- 98of 100Final score
- 85.3of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Daniel Rajaratnam is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Daniel Rajaratnam's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Daniel Rajaratnam
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What is Daniel Rajaratnam's NPI number?
Daniel Rajaratnam's NPI number is 1669650180. It was assigned on February 6, 2008, and it is active in the NPI Registry.
What does Daniel Rajaratnam specialize in?
Daniel Rajaratnam is a physician assistant in Lancaster, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Daniel Rajaratnam practice?
Daniel Rajaratnam practices at 1600 W Ave J, Lancaster, CA 93534. Daniel Rajaratnam's primary practice is Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District.
What is Daniel Rajaratnam's office phone number?
The practice phone on file for Daniel Rajaratnam is (661) 949-5500.
What is Daniel Rajaratnam's medical license number?
Daniel Rajaratnam holds California license 1067589.
Which hospitals is Daniel Rajaratnam affiliated with?
Daniel Rajaratnam practices at Antelope Valley Medical Center in Lancaster, California.
What medical group is Daniel Rajaratnam part of?
Daniel Rajaratnam is linked to Antelope Valley Emergency Medical Associates.
Does Daniel Rajaratnam accept Medicare?
Yes. CMS data shows Daniel Rajaratnam billed Medicare for 96 services in 2024.
What is Daniel Rajaratnam's MIPS score?
Daniel Rajaratnam's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.
How many Medicare patients does Daniel Rajaratnam see?
CMS counts 98 Medicare patients who saw Daniel Rajaratnam in 2024, with an average age of 62.
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Is Daniel Rajaratnam board certified?
Yes. Daniel Rajaratnam is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Daniel Rajaratnam bill to Medicare?
In 2024, Daniel Rajaratnam's most billed Medicare services were emergency department visit (99284) and emergency department visit (99285).
What drugs does Daniel Rajaratnam prescribe most?
In 2024 Medicare Part D data, Daniel Rajaratnam's most prescribed drugs by claims were Cephalexin, Hydrocodone-Acetaminophen and Ibuprofen.
How long has Daniel Rajaratnam been practicing?
Daniel Rajaratnam's NPI was assigned in 2008.
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