NPI registry status
Active
2026 NPPES data Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician NPI 1386984847 M.D.
Verify on CMS → Daizo Tanaka, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Philadelphia, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 5,070 in Thoracic Surgery (Cardiothoracic Vascular Surgery) 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
254
Medicare Part D claims · 55 beneficiaries · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician avg: 128
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.2K
14 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Daizo Tanaka, M.D. filed 254 Medicare Part D claims in 2023 as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Philadelphia, Pennsylvania, prescribing 86% generic.
- 254
- Part D claims, 2023
- 86%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥49th
- 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.
Daizo Tanaka, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
254 ≥ 49th percentile 49% 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)
Daizo Tanaka, 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 Daizo Tanaka, M.D.?
Quality data not reportedPrimary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Medicare Part D claims
254 98% vs specialty avg
Specialty distribution in Pennsylvania
How Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician compares to other specialties among Pennsylvania 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 Thoracic Surgery (Cardiothoracic Vascular Surgery) 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).
Daizo Tanaka, M.D. appears in the CMS NPPES registry as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider holding M.D. credentials at 111 S 11TH ST, Philadelphia, PA, 19107, with a listed phone of (215) 955-6000. NPI 1386984847 was issued on 02/21/2013.
Medicare Part D records for calendar year 2023 show 254 prescription claims written by this provider, covering 55 Medicare beneficiaries and totaling roughly $12K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 7.9%.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician is a mid-sized specialty nationwide, with 5,070 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
Provider Details
| NPI | 1386984847 |
|---|---|
| Specialty | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/21/2013 |
Hospital and facility affiliations
Facilities where Daizo Tanaka, 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.
Henry Ford Health System
Detroit, MI
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 Daizo Tanaka, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$2.2K
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.
License & disciplinary context - Pennsylvania PA-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Daizo Tanaka, M.D.. To verify Daizo Tanaka, M.D.'s current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Daizo Tanaka, M.D. - brand share 14.0%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician average
14% brand-name claims vs 86% generic, on 254 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.
254
Total Claims
$12K
Total Drug Cost
55
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 317
- Total Day Supply
- 7,812
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $9K
- Generic Drug Cost
- $3K
- Opioid Claims
- 20 (7.9% rate)
Patient Demographics
- Average Patient Age
- 70.1 years
- Avg HCC Risk Score
- 2.19
- Gender Split
- 25% female / 75% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Daizo Tanaka, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Cyclobenzaprine Hcl
Cyclobenzaprine Hcl
24 claims
- Furosemide
Furosemide
24 claims
- Metoprolol Tartrate
Metoprolol Tartrate
19 claims
- Oxycodone Hcl
Oxycodone Hcl
19 claims
- Amiodarone Hcl
Amiodarone Hcl
17 claims
- Potassium Chloride
Potassium Chloride
16 claims
- Atorvastatin Calcium
Atorvastatin Calcium
14 claims
| Drug | Claims |
|---|---|
| Cyclobenzaprine Hcl | 24 |
| Furosemide | 24 |
| Metoprolol Tartrate | 19 |
| Oxycodone Hcl | 19 |
| Amiodarone Hcl | 17 |
| Potassium Chloride | 16 |
| Atorvastatin Calcium | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in PA →
All providers in Pennsylvania →
Compare specialties →
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Overview
How Daizo Tanaka, M.D. fits within the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician landscape nationally.
5,070
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in US
52
States with Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
128
Avg Claims per Provider
Daizo Tanaka, M.D.'s 254 claims are above the specialty average of 128.
Nearby Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Tanaka.
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 Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Thoracic Surgery (Cardiothoracic Vascular Surgery) 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 Daizo Tanaka, M.D.'s specialty? ▼
Daizo Tanaka, M.D. specializes in Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician and practices in Philadelphia, Pennsylvania. Credentials: M.D..
How much does Daizo Tanaka, M.D. prescribe under Medicare Part D? ▼
In 2023, Daizo Tanaka, M.D. wrote 254 Medicare Part D claims totaling $12K in drug costs for 55 beneficiaries.
Where is Daizo Tanaka, M.D. located? ▼
Daizo Tanaka, M.D. is located at 111 S 11TH ST, Philadelphia, PA, 19107. Phone: (215) 955-6000.
What is Daizo Tanaka, M.D.'s NPI number? ▼
Daizo Tanaka, M.D.'s National Provider Identifier (NPI) is 1386984847, issued on 02/21/2013.
Does Daizo Tanaka, M.D. prescribe more brand-name or generic drugs? ▼
Daizo Tanaka, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $9K in brand drug costs.
Does Daizo Tanaka, M.D. prescribe opioids? ▼
Yes, Daizo Tanaka, M.D. had 20 opioid claims in 2023 with an opioid prescribing rate of 7.9%.
How many Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers are there in the US? ▼
There are 5,070 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 Daizo Tanaka, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Daizo Tanaka, M.D.'s most frequently prescribed drugs include Cyclobenzaprine Hcl, Furosemide, Metoprolol Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Daizo Tanaka, M.D. accept Medicare? ▼
Daizo Tanaka, M.D. appears in CMS Medicare data with 254 Part D claims and 55 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Daizo Tanaka, M.D.'s credentials? ▼
Daizo Tanaka, M.D.'s NPI is 1386984847 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
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.