NPI registry status
Active
2026 NPPES data Advanced Heart Failure and Transplant Cardiology Physician NPI 1992760276 M.D., PH.D.
Verify on CMS → Carl Tong, M.D., PH.D.
Advanced Heart Failure and Transplant Cardiology Physician in Tucson, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 520 in Advanced Heart Failure and Transplant Cardiology 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
323
Medicare Part D claims · 23 beneficiaries · Advanced Heart Failure and Transplant Cardiology Physician avg: 2K
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$38.37
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Carl Tong, M.D., PH.D. filed 323 Medicare Part D claims in 2023 as an Advanced Heart Failure and Transplant Cardiology Physician in Tucson, Arizona, prescribing 66% generic.
- 323
- Part D claims, 2023
- 66%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥57th
- pct by Part D claim volume (lower-bound band)
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.
Carl Tong, 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
323 ≥ 57th percentile 57% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Carl Tong, M.D., PH.D. 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 Carl Tong, M.D., PH.D.?
Quality data not reportedPrimary specialty
Advanced Heart Failure and Transplant Cardiology Physician
Medicare Part D claims
323 82% vs specialty avg
Specialty distribution in Arizona
How Advanced Heart Failure and Transplant Cardiology Physician compares to other specialties among Arizona providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Advanced Heart Failure and Transplant Cardiology Physician. Verify directly:
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).
Carl Tong, M.D., PH.D. appears in the CMS NPPES registry as an Advanced Heart Failure and Transplant Cardiology Physician provider holding M.D., PH.D. credentials at 3838 N CAMPBELL AVE BLDG 2, Tucson, AZ, 85719, with a listed phone of (520) 694-8888. NPI 1992760276 was issued on 04/19/2006.
Medicare Part D records for calendar year 2023 show 323 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $117K in drug spend, split 34% brand-name and 66% generic by claim count.
Advanced Heart Failure and Transplant Cardiology Physician is a narrow specialty nationwide, with 520 enrolled providers across 48 states and an average of 1,762 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 | 1992760276 |
|---|---|
| Specialty | Advanced Heart Failure and Transplant Cardiology Physician |
| Credentials | M.D., PH.D. |
| Gender | Male |
| NPI Issued | 04/19/2006 |
Hospital and facility affiliations
Facilities where Carl Tong, 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.
Banner-University Medical Group
Tucson, AZ
Texas Aandm University System Health Science Center
Bryan, TX
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 Carl Tong, M.D., PH.D.. Source: openpaymentsdata.cms.gov.
Total received
$38
Largest payer
Boston Scientific Corporation
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 · Above average
Carl Tong, M.D., PH.D. - brand share 34.0%
Advanced Heart Failure and Transplant Cardiology Physician average
34% brand-name claims vs 66% generic, on 323 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.
323
Total Claims
$117K
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 662
- Total Day Supply
- 19,229
- Brand vs Generic
- 34% brand / 66% generic
- Brand Drug Cost
- $112K
- Generic Drug Cost
- $5K
- Antibiotic Claims
- 15
Patient Demographics
- Average Patient Age
- 69.5 years
- Avg HCC Risk Score
- 2.30
- Gender Split
- 52% female / 48% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Carl Tong, M.D., PH.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Carvedilol
Carvedilol
42 claims
- Jardiance
Jardiance
34 claims
- Bumetanide
Bumetanide
27 claims
- Ozempic 16
Ozempic
16 claims
- Spironolactone 16
Spironolactone
16 claims
- Potassium Chloride 14
Potassium Chloride
14 claims
- Hydrochlorothiazide 13
Hydrochlorothiazide
13 claims
- Trulicity 11
Trulicity
11 claims
| Drug | Claims |
|---|---|
| Carvedilol | 42 |
| Jardiance Empagliflozin | 34 |
| Bumetanide | 27 |
| Ozempic Semaglutide | 16 |
| Spironolactone | 16 |
| Potassium Chloride | 14 |
| Hydrochlorothiazide | 13 |
| Trulicity Dulaglutide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Advanced Heart Failure and Transplant Cardiology Physician in AZ →
All providers in Arizona →
Compare specialties →
Advanced Heart Failure and Transplant Cardiology Physician Overview
How Carl Tong, M.D., PH.D. fits within the Advanced Heart Failure and Transplant Cardiology Physician landscape nationally.
520
Advanced Heart Failure and Transplant Cardiology Physician Providers in US
48
States with Advanced Heart Failure and Transplant Cardiology Physician
1,762
Avg Claims per Provider
Carl Tong, M.D., PH.D.'s 323 claims are below the specialty average of 1,762.
Nearby Advanced Heart Failure and Transplant Cardiology Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Tong.
One of 12 Advanced Heart Failure and Transplant Cardiology Physician providers enrolled in Arizona, 5 are shown here.
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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Advanced Heart Failure and Transplant Cardiology 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 Carl Tong, M.D., PH.D.'s specialty? ▼
Carl Tong, M.D., PH.D. specializes in Advanced Heart Failure and Transplant Cardiology Physician and practices in Tucson, Arizona. Credentials: M.D., PH.D..
How much does Carl Tong, M.D., PH.D. prescribe under Medicare Part D? ▼
In 2023, Carl Tong, M.D., PH.D. wrote 323 Medicare Part D claims totaling $117K in drug costs for 23 beneficiaries.
Where is Carl Tong, M.D., PH.D. located? ▼
Carl Tong, M.D., PH.D. is located at 3838 N CAMPBELL AVE BLDG 2, Tucson, AZ, 85719. Phone: (520) 694-8888.
What is Carl Tong, M.D., PH.D.'s NPI number? ▼
Carl Tong, M.D., PH.D.'s National Provider Identifier (NPI) is 1992760276, issued on 04/19/2006.
Does Carl Tong, M.D., PH.D. prescribe more brand-name or generic drugs? ▼
Carl Tong, M.D., PH.D.'s prescribing is 34% brand-name and 66% generic drugs by claim count, with $112K in brand drug costs.
How many Advanced Heart Failure and Transplant Cardiology Physician providers are there in the US? ▼
There are 520 Advanced Heart Failure and Transplant Cardiology Physician providers across 48 states in the US. The average Advanced Heart Failure and Transplant Cardiology Physician provider writes 1,762 Medicare Part D claims per year.
What drugs does Carl Tong, M.D., PH.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Carl Tong, M.D., PH.D.'s most frequently prescribed drugs include Carvedilol, Jardiance, Bumetanide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Carl Tong, M.D., PH.D. accept Medicare? ▼
Carl Tong, M.D., PH.D. appears in CMS Medicare data with 323 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Carl Tong, M.D., PH.D.'s credentials? ▼
Carl Tong, M.D., PH.D.'s NPI is 1992760276 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
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.
- 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
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.