2026 NPPES data Radiation Oncology Physician NPI 1619946068 DO
Verify on CMS →

ROBERT GASTON, DO

Radiation Oncology Physician in OKLAHOMA CITY, Oklahoma. 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
38
Medicare Part D claims · 19 beneficiaries · Radiation Oncology Physician avg: 186
MIPS score
88.825/100
▲ 6 pts above national avg 83.1 · [object Object]
What the federal data reveals: ROBERT GASTON, DO is a Radiation Oncology Physician ([object Object]) practicing in OKLAHOMA CITY, Oklahoma with a Medicare Part D prescribing footprint of 38 claims across 19 beneficiaries . Their CMS MIPS Final Score of 88.825/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: ROBERT GASTON, DO reported a CMS MIPS final score of 88.825 out of 100, above the 83.1 national average, and filed 38 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ROBERT GASTON, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ROBERT GASTON, DO at a glance

High performer (top quartile)

NPI registry status

Active

Issued 03/17/2006

NPI 1619946068

Primary specialty

Radiation Oncology Physician

Mid-sized

6,018 US NPIs in this specialty

Medicare Part D claims

38 80% vs specialty avg

2023 prescription claims

Specialty avg: 186

MIPS final score

88.825/100 5.7250000000000085% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Oklahoma

How Radiation Oncology Physician compares to other specialties among Oklahoma providers

Oklahoma providers

Radiation Oncology Physician share within Oklahoma

1. Radiation Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Radiation Oncology Physician share within Oklahoma

Medicare quality performance — MIPS

ROBERT GASTON, DO's 2023 MIPS final score plotted against the Radiation Oncology Physician national average

High performer (top quartile)
MIPS Final Score
88.825/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Radiation Oncology Physician) — 88.825/100 vs national avg 83.1

0%100%National avg83%88.8%
MIPS final score (Radiation Oncology Physician) — 88.825/100 vs national avg 83.1

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).

ROBERT GASTON, DO is a Radiation Oncology Physician provider practicing in OKLAHOMA CITY, Oklahoma, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1619946068. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ROBERT GASTON, DO appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding DO credentials at 5911 W MEMORIAL RD, OKLAHOMA CITY, OK, 73142, with a listed phone of (405) 773-6530. NPI 1619946068 was issued on 03/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GASTON 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 38 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $1K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 88.825/100 for the 2023 performance year (Quality 77.65), compared with the national average of 83.1.

Radiation Oncology Physician is a mid-sized specialty nationwide, with 6,018 enrolled providers across 52 states and an average of 186 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

5911 W MEMORIAL RD
OKLAHOMA CITY, OK 73142

Provider Details

NPI 1619946068
Specialty Radiation Oncology Physician
Credentials DO
Gender Male
NPI Issued 03/17/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

88.825
Final Score
Avg: 83.1
77.65
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where ROBERT GASTON, DO 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.

OKLAHOMA PROTON CENTER LLC
OKLAHOMA CITY, OK
RADIATION MEDICINE ASSOCIATES, P.C.
OKLAHOMA CITY, OK

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

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

38
Total Claims
$1K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
76
Total Day Supply
2,080
Brand Drug Cost
$0
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
75.6 years
Avg HCC Risk Score
1.69

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Tamsulosin Hcl
20

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

Radiation Oncology Physician Overview

How ROBERT GASTON, DO fits within the Radiation Oncology Physician landscape nationally.

6,018
Radiation Oncology Physician Providers in US
52
States with Radiation Oncology Physician
186
Avg Claims per Provider

ROBERT GASTON, DO's 38 claims are below the specialty average of 186.

Nearby Radiation Oncology Physician Providers in Oklahoma

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

Compare Radiation Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBERT GASTON, DO's specialty?
ROBERT GASTON, DO specializes in Radiation Oncology Physician and practices in OKLAHOMA CITY, Oklahoma. Credentials: DO.
How much does ROBERT GASTON, DO prescribe under Medicare Part D?
In 2023, ROBERT GASTON, DO wrote 38 Medicare Part D claims totaling $1K in drug costs for 19 beneficiaries.
What is ROBERT GASTON, DO's Medicare quality score?
ROBERT GASTON, DO has a CMS MIPS Final Score of 88.825/100 (Quality: 77.65). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ROBERT GASTON, DO located?
ROBERT GASTON, DO is located at 5911 W MEMORIAL RD, OKLAHOMA CITY, OK, 73142. Phone: (405) 773-6530.
What is ROBERT GASTON, DO's NPI number?
ROBERT GASTON, DO's National Provider Identifier (NPI) is 1619946068, issued on 03/17/2006.
How many Radiation Oncology Physician providers are there in the US?
There are 6,018 Radiation Oncology Physician providers across 52 states in the US. The average Radiation Oncology Physician provider writes 186 Medicare Part D claims per year.
What drugs does ROBERT GASTON, DO prescribe most often?
Based on 2023 Medicare Part D data, ROBERT GASTON, DO's most frequently prescribed drugs include Tamsulosin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROBERT GASTON, DO accept Medicare?
ROBERT GASTON, DO appears in CMS Medicare data with 38 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT GASTON, DO's credentials?
ROBERT GASTON, DO's NPI is 1619946068 with credentials DO. 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.
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