2026 NPPES data Hematology & Oncology Physician NPI 1265742274 M.D.
Verify on CMS →

Yasuhiro Oki, M.D.

Hematology & Oncology Physician in Houston, Texas.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,232 in Hematology & 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.

What the federal data shows

Yasuhiro Oki, M.D. is a Hematology & Oncology Physician in Houston, Texas, listed in the federal CMS National Provider Identifier registry.

#85
Hematology & Oncology Physician rank among Texas specialties

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.

CMS NPPES provider registry desk

NPI 1265742274 · Hematology & Oncology Physician

NPI-10 · ENUM-MID · TAX-MID · RX-NONE · BOOK-LIGHT · PHOTO-ENUM

  • NPI-10 1265742274
  • ENUM-MID 2010
  • TAX-MID 11K Hematology &
  • RX-NONE No Part D
  • BOOK-LIGHT 618 in Texas
  • PHOTO-ENUM Georges Azzi · 2010
Board-eligible specialty (heuristic, not verified)

Yasuhiro Oki, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Yasuhiro Oki, M.D.?

Quality data not reported

NPI registry status

Active

Issued 10/12/2010

NPI 1265742274

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,232 US NPIs in this specialty

Specialty distribution in Texas

How Hematology & Oncology Physician compares to other specialties among Texas providers

Texas providers
Behavior Technician5.6%Student in an Organized Heal…5.1%Family Nurse Practitioner4.5%Professional Counselor4.4%Pharmacist4.4%Speech-Language Pathologist3.9%Hematology & Oncology Physic…0.1%
Largest specialties in Texas (% of in-state 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 Hematology & Oncology 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).

Practice Address

1515 HOLCOMBE BLVD UNIT 429
Houston, TX 77030

Provider Details

NPI 1265742274
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 10/12/2010

License & disciplinary context - Texas TMB 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 ~77K Texas medical licensees in 2023 - they are NOT specific to Yasuhiro Oki, M.D.. To verify Yasuhiro Oki, M.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Hematology & Oncology Physician Overview

How Yasuhiro Oki, M.D. fits within the Hematology & Oncology Physician landscape nationally.

11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

Nationwide Hematology & Oncology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Oki, both outside Texas so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2010)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Hematology & Oncology Physician Providers in Texas

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

One of 618 Hematology & Oncology Physician providers enrolled in Texas, 5 are shown here.

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Yasuhiro Oki, M.D.'s specialty?
Yasuhiro Oki, M.D. specializes in Hematology & Oncology Physician and practices in Houston, Texas. Credentials: M.D..
Where is Yasuhiro Oki, M.D. located?
Yasuhiro Oki, M.D. is located at 1515 HOLCOMBE BLVD UNIT 429, Houston, TX, 77030. Phone: (713) 563-6705.
What is Yasuhiro Oki, M.D.'s NPI number?
Yasuhiro Oki, M.D.'s National Provider Identifier (NPI) is 1265742274, issued on 10/12/2010.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,232 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
Does Yasuhiro Oki, M.D. accept Medicare?
Yasuhiro Oki, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Yasuhiro Oki, M.D.'s credentials?
Yasuhiro Oki, M.D.'s NPI is 1265742274 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.
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.