2026 NPPES data Obesity and Weight Management Nutrition Registered Dietitian NPI 1831901479
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Allison Wareham

Obesity and Weight Management Nutrition Registered Dietitian in Denver, 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 415 in Obesity and Weight Management Nutrition Registered Dietitian, 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

Allison Wareham is an Obesity and Weight Management Nutrition Registered Dietitian in Denver, Colorado, listed in the federal CMS National Provider Identifier registry.

#356
Obesity and Weight Management Nutrition Registered Dietitian rank among Colorado 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.

Federal trust snapshot

What official records show about Allison Wareham

Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1831901479), first enumerated 01/21/2025.

    Source: CMS NPPES

  • Not in federal data

    Medicare Part D participation

    No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).

    Source: CMS Part D Prescriber PUF

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

Compare Wareham with other Obesity and Weight Management Nutrition Registered Dietitian providers

Same primary specialty, same federal CMS NPPES roster.

Also enrolled in Colorado

Other specialties in Denver: Mental Health Counselor (1,694) · Clinical Social Worker (1,613) · Registered Nurse (1,188) · Student in an Organized Health Care Education/Training Program (1,060)

CMS NPPES provider registry desk

NPI 1831901479 · Obesity and Weight Management Nutrition Registered Dietitian

NPI-10 · ENUM-NEW · TAX-TRACE · RX-NONE · BOOK-THIN · PHOTO-ENUM

  • NPI-10 1831901479
  • ENUM-NEW 2025
  • TAX-TRACE 415
  • RX-NONE No Part D
  • BOOK-THIN 9 in Colorado
  • PHOTO-ENUM Brittney Richwine · 2025

What does the federal data show about Allison Wareham?

Quality data not reported

NPI registry status

Active

Issued 01/21/2025

NPI 1831901479

Primary specialty

Obesity and Weight Management Nutrition Registered Dietitian

Rare

415 US NPIs in this specialty

Specialty distribution in Colorado

How Obesity and Weight Management Nutrition Registered Dietitian compares to other specialties among Colorado providers

Colorado providers
Behavior Technician8.2%Mental Health Counselor6.1%Clinical Social Worker4.3%Physical Therapist4.2%Professional Counselor3.7%Registered Nurse3.6%Obesity and Weight Managemen…0%
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 Obesity and Weight Management Nutrition Registered Dietitian. 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

955 N WASHINGTON ST APT 5
Denver, CO 80203

Provider Details

NPI 1831901479
Specialty Obesity and Weight Management Nutrition Registered Dietitian
Gender Female
NPI Issued 01/21/2025

Obesity and Weight Management Nutrition Registered Dietitian Overview

How Allison Wareham fits within the Obesity and Weight Management Nutrition Registered Dietitian landscape nationally.

415
Obesity and Weight Management Nutrition Registered Dietitian Providers in US
47
States with Obesity and Weight Management Nutrition Registered Dietitian
3,387
Avg Claims per Provider

Nationwide Obesity and Weight Management Nutrition Registered Dietitian peers with similar MIPS or enrollment year

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

Same NPPES enumeration year (2025)

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

Nearby Obesity and Weight Management Nutrition Registered Dietitian Providers in Colorado

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

One of 9 Obesity and Weight Management Nutrition Registered Dietitian providers enrolled in Colorado, 8 are shown on this page.

Compare Obesity and Weight Management Nutrition Registered Dietitian nationally: see state-by-state distribution →

Frequently Asked Questions

What is Allison Wareham's specialty? ▼
Allison Wareham specializes in Obesity and Weight Management Nutrition Registered Dietitian and practices in Denver, Colorado.
Where is Allison Wareham located? ▼
Allison Wareham is located at 955 N WASHINGTON ST APT 5, Denver, CO, 80203. Phone: (518) 779-4290.
What is Allison Wareham's NPI number? ▼
Allison Wareham's National Provider Identifier (NPI) is 1831901479, issued on 01/21/2025.
How many Obesity and Weight Management Nutrition Registered Dietitian providers are there in the US? ▼
There are 415 Obesity and Weight Management Nutrition Registered Dietitian providers across 47 states in the US. The average Obesity and Weight Management Nutrition Registered Dietitian provider writes 3,387 Medicare Part D claims per year.
Does Allison Wareham accept Medicare? ▼
Allison Wareham appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Allison Wareham's credentials? ▼
Allison Wareham's NPI is 1831901479. 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 August 2026 (NPPES) / 2024 (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 September 2026.