2026 NPPES data Clinical Cardiac Electrophysiology Physician NPI 1376535237 M.D.
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THOMAS ROSS, M.D.

Clinical Cardiac Electrophysiology Physician in PHOENIX, Arizona. 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
860
Medicare Part D claims · 167 beneficiaries · Clinical Cardiac Electrophysiology Physician avg: 2K
Industry payments
$440.87
6 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

THOMAS ROSS, M.D. filed 860 Medicare Part D claims in 2023 as a Clinical Cardiac Electrophysiology Physician in PHOENIX, Arizona.

860
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.

THOMAS ROSS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

860 Top 27% higher than 73% 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%). This entry sits in this band. 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)

THOMAS ROSS, M.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 THOMAS ROSS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 08/17/2005

NPI 1376535237

Primary specialty

Clinical Cardiac Electrophysiology Physician

Niche

1,570 US NPIs in this specialty

Medicare Part D claims

860 46% vs specialty avg

2023 prescription claims

Specialty avg: 1,596

Specialty distribution in Arizona

How Clinical Cardiac Electrophysiology Physician compares to other specialties among Arizona providers

Arizona providers

Clinical Cardiac Electrophysiology Physician share within Arizona

1. Clinical Cardiac Electrophysiology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Clinical Cardiac Electrophysiology Physician share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — Clinical Cardiac Electrophysiology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Clinical Cardiac Electrophysiology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Clinical Cardiac Electrophysiology 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).

THOMAS ROSS, M.D. appears in the CMS NPPES registry as a Clinical Cardiac Electrophysiology Physician provider holding M.D. credentials at 340 E PALM LN, PHOENIX, AZ, 85004, with a listed phone of (602) 386-1100. NPI 1376535237 was issued on 08/17/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ROSS 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 860 prescription claims written by this provider, covering 167 Medicare beneficiaries and totaling roughly $252K 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.

Clinical Cardiac Electrophysiology Physician is a narrow specialty nationwide, with 1,570 enrolled providers across 52 states and an average of 1,596 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

340 E PALM LN
PHOENIX, AZ 85004

Provider Details

NPI 1376535237
Specialty Clinical Cardiac Electrophysiology Physician
Credentials M.D.
Gender Male
NPI Issued 08/17/2005

Hospital and facility affiliations

Facilities where THOMAS ROSS, 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.

HONORHEALTH AMBULATORY
SCOTTSDALE, AZ

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 THOMAS ROSS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$441

Largest payer

Abbott Laboratories

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.

Medicare Part D Prescribing Data

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

860
Total Claims
$252K
Total Drug Cost
167
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,106
Total Day Supply
62,992
Generic Drug Cost
$26K

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.38
Gender Split
47% female / 53% male
Age Distribution
<65: 13, 65-74: 77, 75-84: 60, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

What THOMAS ROSS, M.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
Eliquis
Apixaban
138
Sotalol
Sotalol Hcl
100
Xarelto
Rivaroxaban
58
Metoprolol Succinate
52
Amiodarone Hcl
50
Propafenone Hcl
50
Atorvastatin Calcium
32
Fludrocortisone Acetate
25
Diltiazem 24hr Er (Cd)
Diltiazem Hcl
23
Warfarin Sodium
23

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

Clinical Cardiac Electrophysiology Physician Overview

How THOMAS ROSS, M.D. fits within the Clinical Cardiac Electrophysiology Physician landscape nationally.

1,570
Clinical Cardiac Electrophysiology Physician Providers in US
52
States with Clinical Cardiac Electrophysiology Physician
1,596
Avg Claims per Provider

THOMAS ROSS, M.D.'s 860 claims are below the specialty average of 1,596.

Nearby Clinical Cardiac Electrophysiology Physician Providers in Arizona

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

Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is THOMAS ROSS, M.D.'s specialty?
THOMAS ROSS, M.D. specializes in Clinical Cardiac Electrophysiology Physician and practices in PHOENIX, Arizona. Credentials: M.D..
How much does THOMAS ROSS, M.D. prescribe under Medicare Part D?
In 2023, THOMAS ROSS, M.D. wrote 860 Medicare Part D claims totaling $252K in drug costs for 167 beneficiaries.
Where is THOMAS ROSS, M.D. located?
THOMAS ROSS, M.D. is located at 340 E PALM LN, PHOENIX, AZ, 85004. Phone: (602) 386-1100.
What is THOMAS ROSS, M.D.'s NPI number?
THOMAS ROSS, M.D.'s National Provider Identifier (NPI) is 1376535237, issued on 08/17/2005.
How many Clinical Cardiac Electrophysiology Physician providers are there in the US?
There are 1,570 Clinical Cardiac Electrophysiology Physician providers across 52 states in the US. The average Clinical Cardiac Electrophysiology Physician provider writes 1,596 Medicare Part D claims per year.
What drugs does THOMAS ROSS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, THOMAS ROSS, M.D.'s most frequently prescribed drugs include Eliquis, Sotalol, Xarelto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS ROSS, M.D. accept Medicare?
THOMAS ROSS, M.D. appears in CMS Medicare data with 860 Part D claims and 167 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS ROSS, M.D.'s credentials?
THOMAS ROSS, M.D.'s NPI is 1376535237 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

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