2026 NPPES data Hospitalist Physician NPI 1194475731 MD
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CLARA WARDEN, MD

Hospitalist Physician in NEW HAVEN, 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
466
Medicare Part D claims · 78 beneficiaries · Hospitalist Physician avg: 888

What the federal data shows

CLARA WARDEN, MD filed 466 Medicare Part D claims in 2023 as a Hospitalist Physician in NEW HAVEN, Connecticut.

466
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.

CLARA WARDEN, MD's Medicare Part D volume vs every U.S. prescriber

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

466 Top 38% higher than 62% 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%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 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)

CLARA WARDEN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations — 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 CLARA WARDEN, MD?

Quality data not reported

NPI registry status

Active

Issued 03/26/2022

NPI 1194475731

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

466 48% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Connecticut

How Hospitalist Physician compares to other specialties among Connecticut providers

Connecticut providers

Hospitalist Physician share within Connecticut

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Hospitalist 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).

CLARA WARDEN, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 20 YORK ST, NEW HAVEN, CT, 06510, with a listed phone of (203) 688-4242. NPI 1194475731 was issued on 03/26/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WARDEN 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 466 prescription claims written by this provider, covering 78 Medicare beneficiaries and totaling roughly $114K in drug spend. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

20 YORK ST
NEW HAVEN, CT 06510

Provider Details

NPI 1194475731
Specialty Hospitalist Physician
Credentials MD
Gender Female
NPI Issued 03/26/2022

Hospital and facility affiliations

Facilities where CLARA WARDEN, MD 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.

CORNELL SCOTT HILL HEALTH CORPORATION
NEW HAVEN, CT
NORTHEAST MEDICAL GROUP INC
NEW HAVEN, CT
YALE UNIVERSITY
NEW HAVEN, 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).

Medicare Part D Prescribing Data

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

466
Total Claims
$114K
Total Drug Cost
78
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
942
Total Day Supply
27,187
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
67.8 years
Avg HCC Risk Score
1.93
Gender Split
59% female / 41% male
Age Distribution
<65: 25, 65-74: 32, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What CLARA WARDEN, MD 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
Atorvastatin Calcium
33
Rosuvastatin Calcium
28
Symbicort
Budesonide/Formoterol Fumarate
28
Diclofenac Sodium
23
Amlodipine Besylate
19
Jardiance
Empagliflozin
18
Carvedilol
15
Furosemide
14
Gabapentin
14

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

Hospitalist Physician Overview

How CLARA WARDEN, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

CLARA WARDEN, MD's 466 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is CLARA WARDEN, MD's specialty?
CLARA WARDEN, MD specializes in Hospitalist Physician and practices in NEW HAVEN, Connecticut. Credentials: MD.
How much does CLARA WARDEN, MD prescribe under Medicare Part D?
In 2023, CLARA WARDEN, MD wrote 466 Medicare Part D claims totaling $114K in drug costs for 78 beneficiaries.
Where is CLARA WARDEN, MD located?
CLARA WARDEN, MD is located at 20 YORK ST, NEW HAVEN, CT, 06510. Phone: (203) 688-4242.
What is CLARA WARDEN, MD's NPI number?
CLARA WARDEN, MD's National Provider Identifier (NPI) is 1194475731, issued on 03/26/2022.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does CLARA WARDEN, MD prescribe most often?
Based on 2023 Medicare Part D data, CLARA WARDEN, MD's most frequently prescribed drugs include Atorvastatin Calcium, Rosuvastatin Calcium, Symbicort. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CLARA WARDEN, MD accept Medicare?
CLARA WARDEN, MD appears in CMS Medicare data with 466 Part D claims and 78 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CLARA WARDEN, MD's credentials?
CLARA WARDEN, MD's NPI is 1194475731 with credentials MD. 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