2026 NPPES data Radiation Oncology Physician NPI 1982068086 MD
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Joshua Gruhl, MD

Radiation Oncology Physician in Thornton, Colorado. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,018 in Radiation 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
23
Medicare Part D claims · 14 beneficiaries · Radiation Oncology Physician avg: 186
Industry payments
$1.0K
37 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Joshua Gruhl, MD filed 23 Medicare Part D claims in 2023 as a Radiation Oncology Physician in Thornton, Colorado.

23
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.

Joshua Gruhl, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

23 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic, not verified)

Joshua Gruhl, MD 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 Joshua Gruhl, MD?

Quality data not reported

NPI registry status

Active

Issued 04/05/2016

NPI 1982068086

Primary specialty

Radiation Oncology Physician

Mid-sized

6,018 US NPIs in this specialty

Medicare Part D claims

23 88% vs specialty avg

2023 prescription claims

Specialty avg: 186

Specialty distribution in Colorado

How Radiation Oncology Physician compares to other specialties among Colorado providers

Colorado providers

Largest specialties in Colorado (% of in-state providers)

Behavior Technician - 7.8%Behavior Technician7.8%Mental Health Counselor - 6.2%Mental Health Counselor6.2%Physical Therapist - 4.2%Physical Therapist4.2%Clinical Social Worker - 4.2%Clinical Social Worker4.2%Professional Counselor - 3.7%Professional Counselor3.7%Registered Nurse - 3.6%Registered Nurse3.6%Radiation Oncology Physician - 0.1%Radiation Oncology Physician0.1%
Largest specialties in Colorado (% 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 Radiation Oncology Physician. Verify directly:

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).

Joshua Gruhl, MD appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding MD credentials at 8820 HURON ST, Thornton, CO, 80260, with a listed phone of (303) 386-7622. NPI 1982068086 was issued on 04/05/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Gruhl 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 23 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $240 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.

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

8820 HURON ST
Thornton, CO 80260

Provider Details

NPI 1982068086
Specialty Radiation Oncology Physician
Credentials MD
Gender Male
NPI Issued 04/05/2016

Hospital and facility affiliations

Facilities where Joshua Gruhl, MD 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.

Rocky Mountain Cancer Centers LLP
Thornton, CO
University OF Utah Adult Services
Salt Lake City, UT

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 Joshua Gruhl, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.0K

Largest payer

Telix Pharmaceuticals

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.

23
Total Claims
$240
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
25
Total Day Supply
363
Brand Drug Cost
$0
Generic Drug Cost
$240

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
2.10

Radiation Oncology Physician Overview

How Joshua Gruhl, MD 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

Joshua Gruhl, MD's 23 claims are below the specialty average of 186.

Nearby Radiation Oncology Physician Providers in Colorado

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

Compare Radiation 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 Colorado medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Radiation 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.

Frequently Asked Questions

What is Joshua Gruhl, MD's specialty?
Joshua Gruhl, MD specializes in Radiation Oncology Physician and practices in Thornton, Colorado. Credentials: MD.
How much does Joshua Gruhl, MD prescribe under Medicare Part D?
In 2023, Joshua Gruhl, MD wrote 23 Medicare Part D claims totaling $240 in drug costs for 14 beneficiaries.
Where is Joshua Gruhl, MD located?
Joshua Gruhl, MD is located at 8820 HURON ST, Thornton, CO, 80260. Phone: (303) 386-7622.
What is Joshua Gruhl, MD's NPI number?
Joshua Gruhl, MD's National Provider Identifier (NPI) is 1982068086, issued on 04/05/2016.
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.
Does Joshua Gruhl, MD accept Medicare?
Joshua Gruhl, MD appears in CMS Medicare data with 23 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joshua Gruhl, MD's credentials?
Joshua Gruhl, MD's NPI is 1982068086 with credentials MD. 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.
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.