2026 NPPES data Rheumatology Physician NPI 1134445653 M.D., PH.D.
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RAJWARDHAN YADAV, M.D., PH.D.

Rheumatology Physician in SOUTHINGTON, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 327 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.5K
135 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

RAJWARDHAN YADAV, M.D., PH.D. filed 1,838 Medicare Part D claims in 2023 as a Rheumatology Physician in SOUTHINGTON, Connecticut, prescribing 91% generic.

2K
Part D claims, 2023
91%
generic prescribing
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.

RAJWARDHAN YADAV, M.D., PH.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,838 Top 17% higher than 83% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). This entry sits in this band. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

RAJWARDHAN YADAV, M.D., PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 RAJWARDHAN YADAV, M.D., PH.D.?

Quality data not reported

NPI registry status

Active

Issued 04/08/2010

NPI 1134445653

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

1,838 11% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

Specialty distribution in Connecticut

How Rheumatology Physician compares to other specialties among Connecticut providers

Connecticut providers

Rheumatology Physician share within Connecticut

1. Rheumatology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Rheumatology Physician share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Rheumatology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Rheumatology Physician ABMS/AOA estimate

Est. board-certified rate (Rheumatology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Rheumatology Physician) — ABMS / AOA estimate

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).

RAJWARDHAN YADAV, M.D., PH.D. appears in the CMS NPPES registry as a Rheumatology Physician provider holding M.D., PH.D. credentials at 1131 WEST ST STE 1, SOUTHINGTON, CT, 06489, with a listed phone of (860) 621-1461. NPI 1134445653 was issued on 04/08/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what YADAV most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,838 prescription claims written by this provider, covering 327 Medicare beneficiaries and totaling roughly $1.0 million in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 5.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 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

1131 WEST ST STE 1
SOUTHINGTON, CT 06489

Provider Details

NPI 1134445653
Specialty Rheumatology Physician
Credentials M.D., PH.D.
Gender Male
NPI Issued 04/08/2010

Hospital and facility affiliations

Facilities where RAJWARDHAN YADAV, M.D., PH.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.

HEALTHNOMIC PARTNERS LLC
SOUTHINGTON, CT

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 RAJWARDHAN YADAV, M.D., PH.D.. Source: openpaymentsdata.cms.gov.

Total received

$2.5K

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.

Brand vs generic prescribing mix · Generic-heavy

RAJWARDHAN YADAV, M.D., PH.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,838 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,838
Total Claims
$1.0M
Total Drug Cost
327
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,036
Total Day Supply
86,342
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$968K
Generic Drug Cost
$49K
Opioid Claims
100 (5.4% rate)
Antibiotic Claims
13

Patient Demographics

Average Patient Age
69.8 years
Avg HCC Risk Score
1.83
Gender Split
75% female / 25% male
Age Distribution
<65: 81, 65-74: 128, 75-84: 91, 85+: 27

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What RAJWARDHAN YADAV, M.D., PH.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisone
394
Methotrexate
Methotrexate Sodium
274
Hydroxychloroquine Sulfate
213
Diclofenac Sodium
78
Gabapentin
66
Tramadol Hcl
60
Cyclobenzaprine Hcl
54
Febuxostat
52
Allopurinol
51
Folic Acid
46

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Rheumatology Physician Overview

How RAJWARDHAN YADAV, M.D., PH.D. fits within the Rheumatology Physician landscape nationally.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

RAJWARDHAN YADAV, M.D., PH.D.'s 1,838 claims are below the specialty average of 2,054.

Nearby Rheumatology Physician Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as YADAV.

Compare Rheumatology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RAJWARDHAN YADAV, M.D., PH.D.'s specialty?
RAJWARDHAN YADAV, M.D., PH.D. specializes in Rheumatology Physician and practices in SOUTHINGTON, Connecticut. Credentials: M.D., PH.D..
How much does RAJWARDHAN YADAV, M.D., PH.D. prescribe under Medicare Part D?
In 2023, RAJWARDHAN YADAV, M.D., PH.D. wrote 1,838 Medicare Part D claims totaling $1.0M in drug costs for 327 beneficiaries.
Where is RAJWARDHAN YADAV, M.D., PH.D. located?
RAJWARDHAN YADAV, M.D., PH.D. is located at 1131 WEST ST STE 1, SOUTHINGTON, CT, 06489. Phone: (860) 621-1461.
What is RAJWARDHAN YADAV, M.D., PH.D.'s NPI number?
RAJWARDHAN YADAV, M.D., PH.D.'s National Provider Identifier (NPI) is 1134445653, issued on 04/08/2010.
Does RAJWARDHAN YADAV, M.D., PH.D. prescribe more brand-name or generic drugs?
RAJWARDHAN YADAV, M.D., PH.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $968K in brand drug costs.
Does RAJWARDHAN YADAV, M.D., PH.D. prescribe opioids?
Yes, RAJWARDHAN YADAV, M.D., PH.D. had 100 opioid claims in 2023 with an opioid prescribing rate of 5.4%.
How many Rheumatology Physician providers are there in the US?
There are 6,181 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 RAJWARDHAN YADAV, M.D., PH.D. prescribe most often?
Based on 2023 Medicare Part D data, RAJWARDHAN YADAV, M.D., PH.D.'s most frequently prescribed drugs include Prednisone, Methotrexate, Hydroxychloroquine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RAJWARDHAN YADAV, M.D., PH.D. accept Medicare?
RAJWARDHAN YADAV, M.D., PH.D. appears in CMS Medicare data with 1,838 Part D claims and 327 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RAJWARDHAN YADAV, M.D., PH.D.'s credentials?
RAJWARDHAN YADAV, M.D., PH.D.'s NPI is 1134445653 with credentials M.D., PH.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

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.
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