NPI registry status
Active
2026 NPPES data Surgical Oncology Physician NPI 1235217985 MD, PHD
Verify on CMS → Isaac Kim, MD, PHD
Surgical Oncology Physician in New Haven, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,410 in Surgical Oncology 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
25
Medicare Part D claims · 11 beneficiaries · Surgical Oncology Physician avg: 97
MIPS score
73.6/100
▼ 10 pts below national avg 83.1 · Mid-tier
Industry payments
$4.8K
5 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Isaac Kim, MD, PHD reported a CMS MIPS final score of 73.6/100 - below the 83.1 national average - and filed 25 Medicare Part D claims in 2023.
- 73.6/100
- MIPS score · -10 vs avg
- 25
- 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.
Isaac Kim, MD, PHD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
74 11th percentile higher than 11% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Isaac Kim, MD, PHD sits
This provider among surgical oncology physician peers
Across the 416 surgical oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Isaac Kim, MD, PHD writes more Part D claims than 22% of them and scores higher on MIPS quality than 7% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one surgical oncology physician peer from a representative sample of 60; the gold marker is Isaac Kim, MD, PHD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Isaac Kim, MD, PHD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Isaac Kim, MD, PHD?
Below national averagePrimary specialty
Surgical Oncology Physician
Medicare Part D claims
25 74% vs specialty avg
MIPS final score
73.6/100 9.5 pts vs avg
Specialty distribution in Connecticut
How Surgical Oncology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Isaac Kim, MD, PHD's 2023 MIPS final score plotted against the Surgical Oncology Physician national average
- MIPS Final Score
- 73.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Surgical Oncology Physician) - 73.6/100 vs national avg 83.1
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).
Isaac Kim, MD, PHD appears in the CMS NPPES registry as a Surgical Oncology Physician provider holding MD, PHD credentials at 800 HOWARD AVE FL 1, New Haven, CT, 06519, with a listed phone of (203) 785-2815. NPI 1235217985 was issued on 11/01/2006.
Medicare Part D records for calendar year 2023 show 25 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $549 in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 73.6/100 for the 2023 performance year (Quality 75.8, Cost 51.4), compared with the national average of 83.1.
Surgical Oncology Physician is a narrow specialty nationwide, with 1,410 enrolled providers across 50 states and an average of 97 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 | 1235217985 |
|---|---|
| Specialty | Surgical Oncology Physician |
| Credentials | MD, PHD |
| Gender | Male |
| NPI Issued | 11/01/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.5637
Final Score
Avg: 83.1
75.8435
Quality
51.4318
Cost
74
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Isaac Kim, MD, PHD 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.
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).
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 Isaac Kim, MD, PHD. Source: openpaymentsdata.cms.gov.
Total received
$4.8K
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
25
Total Claims
$549
Total Drug Cost
11
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 30
- Total Day Supply
- 732
- Generic Drug Cost
- $387
Patient Demographics
- Average Patient Age
- 73.7 years
- Avg HCC Risk Score
- 1.42
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: N/A, 85+: 0
Surgical Oncology Physician Overview
How Isaac Kim, MD, PHD fits within the Surgical Oncology Physician landscape nationally.
1,410
Surgical Oncology Physician Providers in US
50
States with Surgical Oncology Physician
97
Avg Claims per Provider
Isaac Kim, MD, PHD's 25 claims are below the specialty average of 97.
Nearby Surgical Oncology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Kim.
Dr. Leah Bassin
MD
Farmington, CT
Dr. Kevin Billingsley
MD
New Haven, CT
Dr. Joshua Bleicher
M.D.
New Haven, CT
Dr. Lindsay Bliss
M.D.
Hartford, CT
Dr. Glenda Callender
MD
Waterbury, CT
Compare Surgical Oncology Physician nationally: see state-by-state distribution →
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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Surgical Oncology 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 Isaac Kim, MD, PHD's specialty? ▼
Isaac Kim, MD, PHD specializes in Surgical Oncology Physician and practices in New Haven, Connecticut. Credentials: MD, PHD.
How much does Isaac Kim, MD, PHD prescribe under Medicare Part D? ▼
In 2023, Isaac Kim, MD, PHD wrote 25 Medicare Part D claims totaling $549 in drug costs for 11 beneficiaries.
What is Isaac Kim, MD, PHD's Medicare quality score? ▼
Isaac Kim, MD, PHD has a CMS MIPS Final Score of 73.6/100 (Quality: 75.8, Cost: 51.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Isaac Kim, MD, PHD located? ▼
Isaac Kim, MD, PHD is located at 800 HOWARD AVE FL 1, New Haven, CT, 06519. Phone: (203) 785-2815.
What is Isaac Kim, MD, PHD's NPI number? ▼
Isaac Kim, MD, PHD's National Provider Identifier (NPI) is 1235217985, issued on 11/01/2006.
How many Surgical Oncology Physician providers are there in the US? ▼
There are 1,410 Surgical Oncology Physician providers across 50 states in the US. The average Surgical Oncology Physician provider writes 97 Medicare Part D claims per year.
Does Isaac Kim, MD, PHD accept Medicare? ▼
Isaac Kim, MD, PHD appears in CMS Medicare data with 25 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Isaac Kim, MD, PHD's credentials? ▼
Isaac Kim, MD, PHD's NPI is 1235217985 with credentials MD, PHD. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
Compiled from official public sources by the PlainDoctor editorial team.