NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1174684815 M.D
Verify on CMS → Dharmarajan Ramaswamy, M.D
Rheumatology Physician in Hemet, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,200 in Rheumatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
4K
Medicare Part D claims · 520 beneficiaries · Rheumatology Physician avg: 2K
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$1.0K
55 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Dharmarajan Ramaswamy, M.D reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 4,142 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 4K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Dharmarajan Ramaswamy, M.D's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 15th percentile higher than 15% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Dharmarajan Ramaswamy, M.D sits
This provider among rheumatology physician peers
Across the 2,181 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Dharmarajan Ramaswamy, M.D writes more Part D claims than 84% of them and scores higher on MIPS quality than 15% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Dharmarajan Ramaswamy, M.D. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Dharmarajan Ramaswamy, M.D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Dharmarajan Ramaswamy, M.D?
Below national averagePrimary specialty
Rheumatology Physician
Medicare Part D claims
4,142 102% vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in California
How Rheumatology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Dharmarajan Ramaswamy, M.D's 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Rheumatology Physician) - 75/100 vs national avg 83.1
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Dharmarajan Ramaswamy, M.D appears in the CMS NPPES registry as a Rheumatology Physician provider holding M.D credentials at 949 CALHOUN PL, Hemet, CA, 92543, with a listed phone of (951) 652-5000. NPI 1174684815 was issued on 12/13/2006.
Medicare Part D records for calendar year 2023 show 4,142 prescription claims written by this provider, covering 520 Medicare beneficiaries and totaling roughly $2.3 million in drug spend, with an opioid prescribing rate of 4.8%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
Rheumatology Physician is a mid-sized specialty nationwide, with 6,200 enrolled providers across 52 states and an average of 2,054 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1174684815 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | M.D |
| Gender | Male |
| NPI Issued | 12/13/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
Reporting: Group practice
Hospital and facility affiliations
Facilities where Dharmarajan Ramaswamy, M.D bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Southland Arthrites And Osteoporosis Medical Center Inc
Riverside, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Dharmarajan Ramaswamy, M.D. Source: openpaymentsdata.cms.gov.
Total received
$1.0K
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Dharmarajan Ramaswamy, M.D. To verify Dharmarajan Ramaswamy, M.D's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
4,142
Total Claims
$2.3M
Total Drug Cost
520
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,607
- Total Day Supply
- 190,985
- Generic Drug Cost
- $115K
- Opioid Claims
- 199 (4.8% rate)
- Antibiotic Claims
- 18
Patient Demographics
- Average Patient Age
- 70.6 years
- Avg HCC Risk Score
- 2.00
- Gender Split
- 84% female / 16% male
- Age Distribution
- <65: 109, 65-74: 245, 75-84: 134, 85+: 32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Dharmarajan Ramaswamy, M.D prescribes most
Top Medicare Part D drugs by claim count, 2023
- Methotrexate
Methotrexate
885 claims
- Leucovorin Calcium
Leucovorin Calcium
753 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
404 claims
- Prednisone 218
Prednisone
218 claims
- Pregabalin 181
Pregabalin
181 claims
- Gabapentin 157
Gabapentin
157 claims
- Tramadol Hcl 151
Tramadol Hcl
151 claims
- Alendronate Sodium 103
Alendronate Sodium
103 claims
| Drug | Claims |
|---|---|
| Methotrexate Methotrexate Sodium | 885 |
| Leucovorin Calcium | 753 |
| Hydroxychloroquine Sulfate | 404 |
| Prednisone | 218 |
| Pregabalin | 181 |
| Gabapentin | 157 |
| Tramadol Hcl | 151 |
| Alendronate Sodium | 103 |
| Azathioprine | 92 |
| Celecoxib | 78 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Dharmarajan Ramaswamy, M.D fits within the Rheumatology Physician landscape nationally.
6,200
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Dharmarajan Ramaswamy, M.D's 4,142 claims are above the specialty average of 2,054.
Nearby Rheumatology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Ramaswamy.
Dr. Thomas Abel
MD
Monte Sereno, CA
Dr. Thomas Adamson
M.D.
San Diego, CA
Dr. Sana Afroz
MD
Moreno Valley, CA
Dr. Atul Agrawal
MD
Antioch, CA
Dr. Bikramjit Ahluwalia
MD
Apple Valley, CA
Compare Rheumatology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Rheumatology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Dharmarajan Ramaswamy, M.D's specialty? ▼
Dharmarajan Ramaswamy, M.D specializes in Rheumatology Physician and practices in Hemet, California. Credentials: M.D.
How much does Dharmarajan Ramaswamy, M.D prescribe under Medicare Part D? ▼
In 2023, Dharmarajan Ramaswamy, M.D wrote 4,142 Medicare Part D claims totaling $2.3M in drug costs for 520 beneficiaries.
What is Dharmarajan Ramaswamy, M.D's Medicare quality score? ▼
Dharmarajan Ramaswamy, M.D has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Dharmarajan Ramaswamy, M.D located? ▼
Dharmarajan Ramaswamy, M.D is located at 949 CALHOUN PL, Hemet, CA, 92543. Phone: (951) 652-5000.
What is Dharmarajan Ramaswamy, M.D's NPI number? ▼
Dharmarajan Ramaswamy, M.D's National Provider Identifier (NPI) is 1174684815, issued on 12/13/2006.
Does Dharmarajan Ramaswamy, M.D prescribe opioids? ▼
Yes, Dharmarajan Ramaswamy, M.D had 199 opioid claims in 2023 with an opioid prescribing rate of 4.8%.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,200 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Dharmarajan Ramaswamy, M.D prescribe most often? ▼
Based on 2023 Medicare Part D data, Dharmarajan Ramaswamy, M.D's most frequently prescribed drugs include Methotrexate, Leucovorin Calcium, Hydroxychloroquine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dharmarajan Ramaswamy, M.D accept Medicare? ▼
Dharmarajan Ramaswamy, M.D appears in CMS Medicare data with 4,142 Part D claims and 520 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dharmarajan Ramaswamy, M.D's credentials? ▼
Dharmarajan Ramaswamy, M.D's NPI is 1174684815 with credentials M.D. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.