2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1598863011 M.D.
Verify on CMS →

Melissa Wellons, M.D.

Endocrinology, Diabetes & Metabolism Physician in Nashville, Tennessee.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,852 in Endocrinology, Diabetes & Metabolism 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
467
Medicare Part D claims · 63 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
0%
generic claims · 54% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.1/100
▲ 14 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Melissa Wellons, M.D. reported a CMS MIPS final score of 97.1/100 - above the 83.1 national average - and filed 467 Medicare Part D claims in 2023.

97.1/100
MIPS score · +14 vs avg
467
Part D claims, 2023
0%
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.

Melissa Wellons, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

97 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90+: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Melissa Wellons, M.D. sits

This provider among endocrinology, diabetes & metabolism physician peers

Across the 2,521 endocrinology, diabetes & metabolism physician providers who report both Medicare Part D prescribing and a MIPS quality score, Melissa Wellons, M.D. writes more Part D claims than 15% of them and scores higher on MIPS quality than 86% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 50Melissa Wellons, M.D.-Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 86
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one endocrinology, diabetes & metabolism physician peer from a representative sample of 60; the gold marker is Melissa Wellons, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Melissa Wellons, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Melissa Wellons, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 09/20/2006

NPI 1598863011

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

467 82% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

MIPS final score

97.1/100 14 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Tennessee

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Tennessee providers

Tennessee providers
Family Nurse Practitioner - 6.4%Family Nurse Practitioner6.4%Pharmacist - 5.9%Pharmacist5.9%Student in an Organized Health Care Education/Training Program - 4.6%Student in an Organized Health Care Education/Training Program4.6%Physical Therapist - 4.2%Physical Therapist4.2%Behavior Technician - 4.2%Behavior Technician4.2%Registered Nurse - 3.9%Registered Nurse3.9%Endocrinology, Diabetes & Metabolism Physician - 0.1%Endocrinology, Diabetes & Metabolism Physician0.1%
Largest specialties in Tennessee (% of in-state providers)

Medicare quality performance, MIPS

Melissa Wellons, M.D.'s 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

High performer (top quartile)
MIPS Final Score
97.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Endocrinology, Diabetes & Metabolism Physician) - 97.1/100 vs national avg 83.1

0%100%National avg83%97.1%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) - 97.1/100 vs national avg 83.1
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).

Melissa Wellons, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 3601 THE VANDERBILT CLINIC, Nashville, TN, 37232, with a listed phone of (615) 936-2000. NPI 1598863011 was issued on 09/20/2006.

Medicare Part D records for calendar year 2023 show 467 prescription claims written by this provider, covering 63 Medicare beneficiaries and totaling roughly $282K in drug spend, split 54% brand-name and 0% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.1/100 for the 2023 performance year (Quality 85.6), compared with the national average of 83.1.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

3601 THE VANDERBILT CLINIC
Nashville, TN 37232

Provider Details

NPI 1598863011
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Female
NPI Issued 09/20/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.1279
Final Score
Avg: 83.1
85.6458
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Melissa Wellons, M.D. 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.

Vanderbilt University Medical Center
★★★★★ 5/5
Nashville, TN
Acute Care Hospitals
CMS CCN: 440039

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 · Brand-heavy

Melissa Wellons, M.D. - brand share 54.0%
Endocrinology, Diabetes & Metabolism Physician average

54% brand-name claims vs 0% generic, on 467 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.

467
Total Claims
$282K
Total Drug Cost
63
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,105
Total Day Supply
33,613
Brand vs Generic
54% brand / 0% generic
Brand Drug Cost
$269K

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
1.54
Gender Split
73% female / 27% male

Top Prescribed Drugs (Medicare Part D)

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

What Melissa Wellons, M.D. 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
Repatha Sureclick
Evolocumab
66
Praluent Pen
Alirocumab
44
Atorvastatin Calcium
43
Ezetimibe
31
Metformin Hcl Er
Metformin Hcl
29
Ozempic
Semaglutide
26
Rosuvastatin Calcium
24
Levothyroxine Sodium
17
Trulicity
Dulaglutide
16
Vascepa
Icosapent Ethyl
16

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

Endocrinology, Diabetes & Metabolism Physician Overview

How Melissa Wellons, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

Melissa Wellons, M.D.'s 467 claims are below the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Tennessee

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

Compare Endocrinology, Diabetes & Metabolism 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 Tennessee medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Endocrinology, Diabetes & Metabolism 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 Melissa Wellons, M.D.'s specialty?
Melissa Wellons, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Nashville, Tennessee. Credentials: M.D..
How much does Melissa Wellons, M.D. prescribe under Medicare Part D?
In 2023, Melissa Wellons, M.D. wrote 467 Medicare Part D claims totaling $282K in drug costs for 63 beneficiaries.
What is Melissa Wellons, M.D.'s Medicare quality score?
Melissa Wellons, M.D. has a CMS MIPS Final Score of 97.1/100 (Quality: 85.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Melissa Wellons, M.D. located?
Melissa Wellons, M.D. is located at 3601 THE VANDERBILT CLINIC, Nashville, TN, 37232. Phone: (615) 936-2000.
What is Melissa Wellons, M.D.'s NPI number?
Melissa Wellons, M.D.'s National Provider Identifier (NPI) is 1598863011, issued on 09/20/2006.
Does Melissa Wellons, M.D. prescribe more brand-name or generic drugs?
Melissa Wellons, M.D.'s prescribing is 54% brand-name and 0% generic drugs by claim count, with $269K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does Melissa Wellons, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Melissa Wellons, M.D.'s most frequently prescribed drugs include Repatha Sureclick, Praluent Pen, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Melissa Wellons, M.D. accept Medicare?
Melissa Wellons, M.D. appears in CMS Medicare data with 467 Part D claims and 63 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Melissa Wellons, M.D.'s credentials?
Melissa Wellons, M.D.'s NPI is 1598863011 with credentials M.D.. 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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.