2026 NPPES data Phlebology Physician NPI 1598895435 MD
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MELISSA DUNN, MD

Phlebology Physician in LONGMONT, 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
12
Medicare Part D claims · Phlebology Physician avg: 463
Generic prescribing
0%
generic claims · 100% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$73.31
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MELISSA DUNN, MD is a Phlebology Physician ([object Object]) practicing in LONGMONT, Colorado with a Medicare Part D prescribing footprint of 12 claims — 100% brand-name prescribing . Industry payments of $73.31 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MELISSA DUNN, MD filed 12 Medicare Part D claims in 2023 across LONGMONT, Colorado. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MELISSA DUNN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/07/2007

NPI 1598895435

Primary specialty

Phlebology Physician

Rare

274 US NPIs in this specialty

Medicare Part D claims

12 97% vs specialty avg

2023 prescription claims

Specialty avg: 463

Specialty distribution in Colorado

How Phlebology Physician compares to other specialties among Colorado providers

Colorado providers

Phlebology Physician share within Colorado

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

Specialty board-certification context

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

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

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

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

MELISSA DUNN, MD is a Phlebology Physician provider practicing in LONGMONT, Colorado, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1598895435. 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.

MELISSA DUNN, MD appears in the CMS NPPES registry as a Phlebology Physician provider holding MD credentials at 1551 PROFESSIONAL LN UNIT 241, LONGMONT, CO, 80501, with a listed phone of (800) 991-6117. NPI 1598895435 was issued on 03/07/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DUNN 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 12 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $12K in drug spend, split 100% brand-name and 0% 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.

Phlebology Physician is a narrow specialty nationwide, with 274 enrolled providers across 43 states and an average of 463 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

1551 PROFESSIONAL LN UNIT 241
LONGMONT, CO 80501

Provider Details

NPI 1598895435
Specialty Phlebology Physician
Credentials MD
Gender Female
NPI Issued 03/07/2007

Hospital and facility affiliations

Facilities where MELISSA DUNN, 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.

COLORADO MEDICAL GROUP PLLC
CENTENNIAL, 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 MELISSA DUNN, MD. Source: openpaymentsdata.cms.gov.

Total received

$73

Largest payer

Tactile Systems Technology 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.

Brand vs generic prescribing mix · Brand-heavy

MELISSA DUNN, MD — brand share 100.0%
Specialty average (est.)

100% brand-name claims vs 0% generic, on 12 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.

12
Total Claims
$12K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
19
Total Day Supply
562
Brand vs Generic
100% brand / 0% generic
Brand Drug Cost
$12K
Generic Drug Cost
$0

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
0.89

Phlebology Physician Overview

How MELISSA DUNN, MD fits within the Phlebology Physician landscape nationally.

274
Phlebology Physician Providers in US
43
States with Phlebology Physician
463
Avg Claims per Provider

MELISSA DUNN, MD's 12 claims are below the specialty average of 463.

Nearby Phlebology Physician Providers in Colorado

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

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

Frequently Asked Questions

What is MELISSA DUNN, MD's specialty?
MELISSA DUNN, MD specializes in Phlebology Physician and practices in LONGMONT, Colorado. Credentials: MD.
How much does MELISSA DUNN, MD prescribe under Medicare Part D?
In 2023, MELISSA DUNN, MD wrote 12 Medicare Part D claims totaling $12K in drug costs for N/A beneficiaries.
Where is MELISSA DUNN, MD located?
MELISSA DUNN, MD is located at 1551 PROFESSIONAL LN UNIT 241, LONGMONT, CO, 80501. Phone: (800) 991-6117.
What is MELISSA DUNN, MD's NPI number?
MELISSA DUNN, MD's National Provider Identifier (NPI) is 1598895435, issued on 03/07/2007.
Does MELISSA DUNN, MD prescribe more brand-name or generic drugs?
MELISSA DUNN, MD's prescribing is 100% brand-name and 0% generic drugs by claim count, with $12K in brand drug costs.
How many Phlebology Physician providers are there in the US?
There are 274 Phlebology Physician providers across 43 states in the US. The average Phlebology Physician provider writes 463 Medicare Part D claims per year.
Does MELISSA DUNN, MD accept Medicare?
MELISSA DUNN, MD appears in CMS Medicare data with 12 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELISSA DUNN, MD's credentials?
MELISSA DUNN, MD's NPI is 1598895435 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