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WELCH, DEREKM.D. NPI 1093753303 Clinician

Pathology · NASHVILLE, TN

Specialty Pathology — from billed Medicare claims
Trained ROCKY VISTA UNIVERSITY COLLEGE OF OSTEOPATHIC MED — medical school, self-reported to CMS
In practice about 2 years since medical school (class of 2024, self-reported to CMS)
Location NASHVILLE, TN · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 36 codes billed · 68,268 disclosed services (CY2024 — most recent year in data)
Current groups

Group affiliation since 2019

20192026
ASSOCIATED PATHOLOGISTS, LLC
2019–2026

The roster archive begins in 2019, so a span starting at 2019 may reach back further. Membership spans only — no volume is attributed to any group here.

NPPES registry · CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · NPPES record last updated 2022-09

Year: 2024 · 2023 · 2022  · 2021  · 2020 

Provider overview · all codes · CY2024

The full analytics for this provider

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The billed-volume positioning, practice focus, and economics behind this provider — computed on the same disclosed Medicare Part B data.

This provider's disclosed Medicare payments across all codes were in CY2024. Unlock to see the figure.

  • Payment, service & beneficiary totals — the disclosed scale, all codes
  • Practice profile — focus & reach — top codes by share of services
  • Office vs. facility setting mix — place-of-service code split
  • Volume over five years — discrete yearly counts, no rate
  • Peer positioning — service volume — percentile among specialty peers, cohort & year disclosed
  • Peer positioning — code breadth — how many codes billed, vs peers

Peer positioning shows billed-volume and code-breadth positions among specialty peers, not measures of care (a provider's true volume position can only be higher, never lower). All figures disclosed Medicare Part B fee-for-service; volumes are personal to this NPI, not attributed to any group.

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Procedures billed to Medicare Part B (2024)

Medicare Part B FFS · CY2024 · as published by CMS
CodeDescription Services Beneficiary-episodes Avg charge Avg Medicare payment
36415 Insertion of needle into vein for collection of blood sample
G0145 Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, with screening by automated system and manual rescreening under physician supervision
87481 Detection test for candida species (yeast), amplified probe technique
87624 Detection test by nucleic acid for human papillomavirus (hpv), high-risk types
87511 Detection test for gardnerella vaginalis (bacteria), amplified probe technique
88175 Pap test, automated thin layer preparation; automated system and manual rescreening
G0476 Infectious agent detection by nucleic acid (dna or rna); human papillomavirus (hpv), high-risk types (e.g., 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 68) for cervical cancer screening, must be performed in addition to pap test
87491 Detection test by nucleic acid for chlamydia trachomatis, amplified probe technique
G0123 Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen
87661 Detection test by nucleic acid for trichomonas vaginalis (genital parasite), amplified probe technique
84165 Protein measurement, serum
87529 Detection test by nucleic acid for herpes simplex virus, amplified probe technique
87591 Detection test by nucleic acid for neisseria gonorrhoeae (gonorrhoeae bacteria), amplified probe technique
88305 Pathology examination of tissue using a microscope, intermediate complexity
87798 Detection test by nucleic acid for organism, amplified probe technique
87637 Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus
87493 Detection test by nucleic acid for clostridium difficile, amplified probe technique
87625 Detection test by nucleic acid for human papillomavirus (hpv), types 16 and 18 only
84166 Protein measurement, body fluid
88374 Microscopic genetic analysis of tissue, computer-assisted technology, initial procedure, each multiplex procedure
87522 Detection test by nucleic acid for hepatitis c virus, quantification
88291 Interpretation and report of genetic testing
87563 Detection of mycoplasma genitalium by dna or rna probe
88121 Cell examination of urine, computer-assisted
87799 Detection test by nucleic acid for organism, quantification
G0452 Molecular pathology procedure; physician interpretation and report
87636 Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b
87640 Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique
87536 Detection test by nucleic acid for hiv-1 virus, quantification
88142 Pap test, manual screening
87653 Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique
87505 Detection test by nucleic acid for digestive tract pathogen, multiple types or subtypes, 3-5 targets
88312 Special stained specimen slides to identify organisms including interpretation and report
87517 Detection test by nucleic acid for hepatitis b virus, quantification
G0124 Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician

These are this provider's own Medicare Part B fee-for-service volumes (CMS public data). CMS suppresses rows with fewer than 11 beneficiaries, so low-volume codes may be missing entirely — absence is not zero. Beneficiary-episodes count CMS's per-setting beneficiary figures, not unique patients. Average charge and average Medicare payment are weighted by service volume across office and facility settings. Volumes on this page are personal to the NPI and are not attributed to any physician group. See Methods & Sources.