2026 NPPES data Rheumatology Physician NPI 1881878759 DO, MPH
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ELIZABETH ARENA, DO, MPH

Rheumatology Physician in GRAND JUNCTION, 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
383
Medicare Part D claims · 95 beneficiaries · Rheumatology Physician avg: 2K
Industry payments
$555.66
22 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ELIZABETH ARENA, DO, MPH is a Rheumatology Physician ([object Object]) practicing in GRAND JUNCTION, Colorado with a Medicare Part D prescribing footprint of 383 claims across 95 beneficiaries . Industry payments of $555.66 across 22 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ELIZABETH ARENA, DO, MPH filed 383 Medicare Part D claims in 2023 across GRAND JUNCTION, Colorado. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ELIZABETH ARENA, DO, MPH 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).

ELIZABETH ARENA, DO, MPH at a glance

Quality data not reported

NPI registry status

Active

Issued 12/27/2007

NPI 1881878759

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

383 81% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

Specialty distribution in Colorado

How Rheumatology Physician compares to other specialties among Colorado providers

Colorado providers

Rheumatology Physician share within Colorado

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Rheumatology 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).

ELIZABETH ARENA, DO, MPH is a Rheumatology Physician provider practicing in GRAND JUNCTION, Colorado, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO, MPH. NPI: 1881878759. 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.

ELIZABETH ARENA, DO, MPH appears in the CMS NPPES registry as a Rheumatology Physician provider holding DO, MPH credentials at ST MARY'S REGIONAL MEDICAL CENTER 2635 N 7TH ST, GRAND JUNCTION, CO, 81501, with a listed phone of (970) 298-5910. NPI 1881878759 was issued on 12/27/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARENA 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 383 prescription claims written by this provider, covering 95 Medicare beneficiaries and totaling roughly $555K 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.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 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

ST MARY'S REGIONAL MEDICAL CENTER 2635 N 7TH ST
GRAND JUNCTION, CO 81501

Provider Details

NPI 1881878759
Specialty Rheumatology Physician
Credentials DO, MPH
Gender Female
NPI Issued 12/27/2007

Hospital and facility affiliations

Facilities where ELIZABETH ARENA, DO, MPH 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.

INTERMOUNTAIN MEDICAL GROUP GRAND JUNCTION, LLC
GRAND JUNCTION, 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).

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 ELIZABETH ARENA, DO, MPH. Source: openpaymentsdata.cms.gov.

Total received

$556

Largest payer

ABBVIE 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.

383
Total Claims
$555K
Total Drug Cost
95
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
776
Total Day Supply
22,710
Generic Drug Cost
$12K

Patient Demographics

Average Patient Age
68.9 years
Avg HCC Risk Score
1.57
Gender Split
72% female / 28% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Methotrexate
Methotrexate Sodium
59
Hydroxychloroquine Sulfate
35
Prednisone
35
Leflunomide
34
Sulfasalazine Dr
Sulfasalazine
20
Azathioprine
18
Enbrel Sureclick
Etanercept
17
Allopurinol
16
Duloxetine Hcl
13
Taltz Autoinjector
Ixekizumab
11

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

Rheumatology Physician Overview

How ELIZABETH ARENA, DO, MPH fits within the Rheumatology Physician landscape nationally.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

ELIZABETH ARENA, DO, MPH's 383 claims are below the specialty average of 2,054.

Nearby Rheumatology Physician Providers in Colorado

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

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

Frequently Asked Questions

What is ELIZABETH ARENA, DO, MPH's specialty?
ELIZABETH ARENA, DO, MPH specializes in Rheumatology Physician and practices in GRAND JUNCTION, Colorado. Credentials: DO, MPH.
How much does ELIZABETH ARENA, DO, MPH prescribe under Medicare Part D?
In 2023, ELIZABETH ARENA, DO, MPH wrote 383 Medicare Part D claims totaling $555K in drug costs for 95 beneficiaries.
Where is ELIZABETH ARENA, DO, MPH located?
ELIZABETH ARENA, DO, MPH is located at ST MARY'S REGIONAL MEDICAL CENTER 2635 N 7TH ST, GRAND JUNCTION, CO, 81501. Phone: (970) 298-5910.
What is ELIZABETH ARENA, DO, MPH's NPI number?
ELIZABETH ARENA, DO, MPH's National Provider Identifier (NPI) is 1881878759, issued on 12/27/2007.
How many Rheumatology Physician providers are there in the US?
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does ELIZABETH ARENA, DO, MPH prescribe most often?
Based on 2023 Medicare Part D data, ELIZABETH ARENA, DO, MPH's most frequently prescribed drugs include Methotrexate, Hydroxychloroquine Sulfate, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELIZABETH ARENA, DO, MPH accept Medicare?
ELIZABETH ARENA, DO, MPH appears in CMS Medicare data with 383 Part D claims and 95 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELIZABETH ARENA, DO, MPH's credentials?
ELIZABETH ARENA, DO, MPH's NPI is 1881878759 with credentials DO, MPH. 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