2026 NPPES data Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician NPI 1891081055 MD
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SHUDDHADEB RAY, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in SAINT LOUIS, Missouri. 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
270
Medicare Part D claims · 84 beneficiaries · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician avg: 128
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$13.3K
72 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SHUDDHADEB RAY, MD filed 270 Medicare Part D claims in 2023 as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in SAINT LOUIS, Missouri, prescribing 92% generic.

270
Part D claims, 2023
92%
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.

SHUDDHADEB RAY, MD's Medicare Part D volume vs every U.S. prescriber

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

270 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 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)

SHUDDHADEB RAY, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 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 SHUDDHADEB RAY, MD?

Quality data not reported

NPI registry status

Active

Issued 06/24/2011

NPI 1891081055

Primary specialty

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician

Mid-sized

5,062 US NPIs in this specialty

Medicare Part D claims

270 111% vs specialty avg

2023 prescription claims

Specialty avg: 128

Specialty distribution in Missouri

How Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician compares to other specialties among Missouri providers

Missouri providers

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician share within Missouri

1. Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician ABMS/AOA estimate

Est. board-certified rate (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Thoracic Surgery (Cardiothoracic Vascular Surgery) 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).

SHUDDHADEB RAY, MD appears in the CMS NPPES registry as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider holding MD credentials at 11155 DUNN RD, SAINT LOUIS, MO, 63136, with a listed phone of (314) 355-3003. NPI 1891081055 was issued on 06/24/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAY 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 270 prescription claims written by this provider, covering 84 Medicare beneficiaries and totaling roughly $12K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 30.4%. 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.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician is a mid-sized specialty nationwide, with 5,062 enrolled providers across 52 states and an average of 128 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

11155 DUNN RD
SAINT LOUIS, MO 63136

Provider Details

NPI 1891081055
Specialty Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Credentials MD
Gender Male
NPI Issued 06/24/2011

Hospital and facility affiliations

Facilities where SHUDDHADEB RAY, 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.

CAROLINAS PHYSICIANS NETWORK INC
CHARLOTTE, NC
WASHINGTON UNIVERSITY
SAINT LOUIS, MO

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 SHUDDHADEB RAY, MD. Source: openpaymentsdata.cms.gov.

Total received

$13.3K

Largest payer

INTUITIVE SURGICAL, 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

SHUDDHADEB RAY, MD — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 270 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.

270
Total Claims
$12K
Total Drug Cost
84
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
318
Total Day Supply
6,956
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$9K
Generic Drug Cost
$3K
Opioid Claims
82 (30.4% rate)

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.68
Gender Split
44% female / 56% male

Top Prescribed Drugs (Medicare Part D)

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

What SHUDDHADEB RAY, 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
Oxycodone Hcl
65
Atorvastatin Calcium
21
Pantoprazole Sodium
21
Furosemide
20
Metoprolol Tartrate
20
Klor-Con M20
Potassium Chloride
17
Tramadol Hcl
14

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

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Overview

How SHUDDHADEB RAY, MD fits within the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician landscape nationally.

5,062
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in US
52
States with Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
128
Avg Claims per Provider

SHUDDHADEB RAY, MD's 270 claims are above the specialty average of 128.

Nearby Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in Missouri

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

Compare Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SHUDDHADEB RAY, MD's specialty?
SHUDDHADEB RAY, MD specializes in Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician and practices in SAINT LOUIS, Missouri. Credentials: MD.
How much does SHUDDHADEB RAY, MD prescribe under Medicare Part D?
In 2023, SHUDDHADEB RAY, MD wrote 270 Medicare Part D claims totaling $12K in drug costs for 84 beneficiaries.
Where is SHUDDHADEB RAY, MD located?
SHUDDHADEB RAY, MD is located at 11155 DUNN RD, SAINT LOUIS, MO, 63136. Phone: (314) 355-3003.
What is SHUDDHADEB RAY, MD's NPI number?
SHUDDHADEB RAY, MD's National Provider Identifier (NPI) is 1891081055, issued on 06/24/2011.
Does SHUDDHADEB RAY, MD prescribe more brand-name or generic drugs?
SHUDDHADEB RAY, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $9K in brand drug costs.
Does SHUDDHADEB RAY, MD prescribe opioids?
Yes, SHUDDHADEB RAY, MD had 82 opioid claims in 2023 with an opioid prescribing rate of 30.4%.
How many Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers are there in the US?
There are 5,062 Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers across 52 states in the US. The average Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider writes 128 Medicare Part D claims per year.
What drugs does SHUDDHADEB RAY, MD prescribe most often?
Based on 2023 Medicare Part D data, SHUDDHADEB RAY, MD's most frequently prescribed drugs include Oxycodone Hcl, Atorvastatin Calcium, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHUDDHADEB RAY, MD accept Medicare?
SHUDDHADEB RAY, MD appears in CMS Medicare data with 270 Part D claims and 84 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHUDDHADEB RAY, MD's credentials?
SHUDDHADEB RAY, MD's NPI is 1891081055 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