2026 NPPES data Gastroenterology Physician NPI 1851428882 DO
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JOHN RIOPELLE, DO

Gastroenterology Physician in LONE TREE, Colorado. 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
1K
Medicare Part D claims · 1K beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JOHN RIOPELLE, DO filed 1,481 Medicare Part D claims in 2023 as a Gastroenterology Physician in LONE TREE, Colorado, prescribing 94% generic.

1K
Part D claims, 2023
94%
generic prescribing
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.

JOHN RIOPELLE, DO's Medicare Part D volume vs every U.S. prescriber

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

1,481 Top 20% higher than 80% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 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)

JOHN RIOPELLE, DO 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 JOHN RIOPELLE, DO?

Quality data not reported

NPI registry status

Active

Issued 02/27/2007

NPI 1851428882

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

1,481 78% vs specialty avg

2023 prescription claims

Specialty avg: 833

Specialty distribution in Colorado

How Gastroenterology Physician compares to other specialties among Colorado providers

Colorado providers

Gastroenterology Physician share within Colorado

1. Gastroenterology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gastroenterology Physician share within Colorado

Specialty board-certification context

Estimated specialty board-certified rate — Gastroenterology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gastroenterology Physician ABMS/AOA estimate

Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate

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).

JOHN RIOPELLE, DO appears in the CMS NPPES registry as a Gastroenterology Physician provider holding DO credentials at 10240 PARK MEADOWS DR, LONE TREE, CO, 80124, with a listed phone of (303) 338-4545. NPI 1851428882 was issued on 02/27/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RIOPELLE 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 1,481 prescription claims written by this provider, covering 1,150 Medicare beneficiaries and totaling roughly $136K in drug spend, split 6% brand-name and 94% generic by claim count. 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.

Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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

10240 PARK MEADOWS DR
LONE TREE, CO 80124

Provider Details

NPI 1851428882
Specialty Gastroenterology Physician
Credentials DO
Gender Male
NPI Issued 02/27/2007

Hospital and facility affiliations

Facilities where JOHN RIOPELLE, 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.

COLORADO PERMANENTE MEDICAL GROUP PC
LONE TREE, CO

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

Brand vs generic prescribing mix · Generic-heavy

JOHN RIOPELLE, DO — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 1,481 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.

1,481
Total Claims
$136K
Total Drug Cost
1,150
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,001
Total Day Supply
29,904
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$98K
Generic Drug Cost
$38K

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
0.78
Gender Split
52% female / 48% male
Age Distribution
<65: 23, 65-74: 744, 75-84: 372, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

What JOHN RIOPELLE, DO prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Omeprazole
157
Budesonide Dr
Budesonide
50
Pantoprazole Sodium
37
Lialda
Mesalamine
36
Dicyclomine Hcl
23
Azathioprine
17
Ondansetron Odt
Ondansetron
16
Creon
Lipase/Protease/Amylase
15
Mesalamine
14
Gavilyte-C
"Peg3350/Sod Sulf
N/A

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

Gastroenterology Physician Overview

How JOHN RIOPELLE, DO fits within the Gastroenterology Physician landscape nationally.

16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider

JOHN RIOPELLE, DO's 1,481 claims are above the specialty average of 833.

Nearby Gastroenterology Physician Providers in Colorado

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

Compare Gastroenterology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN RIOPELLE, DO's specialty?
JOHN RIOPELLE, DO specializes in Gastroenterology Physician and practices in LONE TREE, Colorado. Credentials: DO.
How much does JOHN RIOPELLE, DO prescribe under Medicare Part D?
In 2023, JOHN RIOPELLE, DO wrote 1,481 Medicare Part D claims totaling $136K in drug costs for 1,150 beneficiaries.
Where is JOHN RIOPELLE, DO located?
JOHN RIOPELLE, DO is located at 10240 PARK MEADOWS DR, LONE TREE, CO, 80124. Phone: (303) 338-4545.
What is JOHN RIOPELLE, DO's NPI number?
JOHN RIOPELLE, DO's National Provider Identifier (NPI) is 1851428882, issued on 02/27/2007.
Does JOHN RIOPELLE, DO prescribe more brand-name or generic drugs?
JOHN RIOPELLE, DO's prescribing is 6% brand-name and 94% generic drugs by claim count, with $98K in brand drug costs.
How many Gastroenterology Physician providers are there in the US?
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does JOHN RIOPELLE, DO prescribe most often?
Based on 2023 Medicare Part D data, JOHN RIOPELLE, DO's most frequently prescribed drugs include Omeprazole, Budesonide Dr, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN RIOPELLE, DO accept Medicare?
JOHN RIOPELLE, DO appears in CMS Medicare data with 1,481 Part D claims and 1,150 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN RIOPELLE, DO's credentials?
JOHN RIOPELLE, DO's NPI is 1851428882 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.
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