Dr. Reid M. Ness, MD

  • Nashville, TN
  • Gastroenterologist
NPI1639266737PAC ID4789729088
Medicare services, 2024
547
Medicare patients, 2024
432
Part D claims, 2024
852
Publications
37
Hospital affiliations
1
Practice address
1211 Medical Center Drive, Nashville, TN 37232
Practice phone
Call (615) 322-3454
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Vanderbilt University Medical Center

Hospital · Nashville, Tennessee

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Dr. Reid M. Ness is a gastroenterologist in Nashville, Tennessee

Dr. Ness practices at Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center.

Dr. Ness' NPI, 1639266737, was assigned on October 9, 2006. Dr. Ness holds Tennessee license MD34222.

NPI and contact details
Medicare PAC ID
4789729088
NPI enumeration date
October 9, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(615) 322-3454
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
62
Medical school graduation
1990

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Reid M. Ness practices at Vanderbilt University Medical Center in Nashville, Tennessee

Dr. Ness' primary practice is Vanderbilt University Medical Center, at 1211 Medical Center Drive, Nashville, TN 37232 in Davidson County. The practice phone is (615) 322-3454.

Source: Dmand AI Affiliation Data

Dr. Reid M. Ness is affiliated with 2 sites of care and 1 medical group

Dr. Ness' primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. The medical group on file is Vanderbilt University Medical Center. Dmand AI also links Dr. Ness to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Ness

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Reid M. Ness' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ness practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Vanderbilt University Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across Vanderbilt University Medical Center and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Reid M. Ness is one of 331 gastroenterologists in Tennessee

Gastroenterology is Dr. Ness' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Ness is licensed in Tennessee.

Specialties and state licenses

  • Gastroenterology, TennesseePrimaryLicense MD34222 · taxonomy 207RG0100X

Gastroenterologists near Dr. Ness

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Reid M. Ness billed Medicare for 547 services in 2024

CMS data shows 547 Medicare services from Dr. Ness across 12 procedure codes in 2024, for 432 Medicare patients. Medicare paid $46,806 for them.

Medicare services, 2024547
Medicare patients432
Paid by Medicare$46,806
Procedure codes12

Dr. Ness' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3522024: 31112%
Surgery
2023: 2142024: 18912%
Other services
2023: 02024: 47

Where Dr. Ness' Medicare services took place, 2024

  • In an office265%
  • In a facility52195%

Dr. Ness compared with the Tennessee median for gastroenterologists, 2024

  • Dr. Ness
  • Tennessee median
Medicare services
547vs 64515% below
Medicare patients
432vs 37715% above
Part D claims
729vs 59622% above

Medians across 330 gastroenterologists in Tennessee with Dmand AI profiles that report each measure.

Dr. Ness' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Ness

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Reid M. Ness treated 432 Medicare patients in 2024, average age 71

CMS counts 432 Medicare patients who saw Dr. Ness in 2024. The largest group is 65 to 74, with 206 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 2.08, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Ness' median patient age at 62, with 59% women.

Medicare patients, 2024432
Average age71
Average risk score2.08
Also on Medicaid12%

Dr. Ness' Medicare patients by age, 2024

Dr. Ness' Medicare patients by sex, 2024

  • Women25860%
  • Men17440%

Chronic conditions among Dr. Ness' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis56%
  4. Ischemic heart disease43%
  5. Mood disorders43%
  6. Anxiety40%
  7. Depression40%
  8. Chronic kidney disease39%

Share of Medicare patients with each condition. A patient can have several.

Dr. Ness' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women59%
  • Men40%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Reid M. Ness wrote 852 Medicare Part D claims in 2024

In 2024, Dr. Ness wrote 852 Medicare Part D claims for 240 patients. 87% of them were for generic drugs. CMS names the drug for 729 of them, across 17 drugs with 11 or more claims each, at $105,640 in total drug cost. In 2023, CMS named 640 claims across 15 drugs.

Part D claims, 2024852
Drugs named by CMS17
Total drug cost$105,640
Part D patients240

Dr. Ness' Part D claims by kind of drug, 2024

  • Generic744 claims87%
  • Brand-name108 claims13%

Dr. Ness' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 6402024: 72914%

Drugs named by CMS: 17 in 2024, 15 in 2023.

See all prescribing by Dr. Ness

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Reid M. Ness ranks in the 82nd percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare

Dr. Ness accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ness as offering telehealth. CMS counts 133 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Ness, more than 82% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Ness ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
82nd percentile133 procedures
Colonoscopy
78th percentile94 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Reid M. Ness has 37 publications on record

Dmand AI links 37 papers to Dr. Ness, published from 2015 to 2023. 2016 was the busiest year, with 6. The most frequent topics are Colorectal Neoplasms, Adenoma and Magnesium. Dr. Ness has published most often in Mol Carcinog. Dr. Ness' most frequent co-authors are Harvey Johnson Murff, MD, Walter Smalley, MD and Francis M. Giardiello, MD.

Papers37
Years published2015 to 2023

Dr. Ness' papers by year, 2015 to 2023

Topics Dr. Ness writes about most

  • Colorectal Neoplasms
  • Adenoma
  • Magnesium
  • Tennessee
  • Biomarkers, Tumor
  • Colonoscopy
  • Diet
  • Early Detection of Cancer

Dr. Ness' most frequent co-authors

Recent publications by Dr. Ness

See all 37 publications and co-authors

See who Dr. Ness researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ness works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Reid M. Ness received $20 in industry payments in 2025

CMS Open Payments shows 1 general payment to Dr. Ness from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $20.

Companies that paid Dr. Ness the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Ness

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Reid M. Ness's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Reid M. Ness

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Reid M. Ness' NPI number?

Dr. Reid M. Ness' NPI number is 1639266737. It was assigned on October 9, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Reid M. Ness?

Dr. Reid M. Ness is a gastroenterologist in Nashville, Tennessee. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Reid M. Ness practice?

Dr. Ness practices at 1211 Medical Center Drive, Nashville, TN 37232. Dr. Ness' primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. Dmand AI also links Dr. Ness to 1 group practice or clinic.

What is Dr. Reid M. Ness' office phone number?

The practice phone on file for Dr. Ness is (615) 322-3454.

What is Dr. Reid M. Ness' medical license number?

Dr. Ness holds Tennessee license MD34222.

Which hospitals is Dr. Reid M. Ness affiliated with?

Dr. Ness practices at Vanderbilt University Medical Center in Nashville, Tennessee.

What medical group is Dr. Reid M. Ness part of?

Dr. Ness is linked to Vanderbilt University Medical Center.

Does Dr. Reid M. Ness accept Medicare?

Yes. CMS data shows Dr. Ness billed Medicare for 547 services in 2024, and Dr. Ness accepts Medicare assignment.

Does Dr. Reid M. Ness offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Ness as offering telehealth services.

How many Medicare patients does Dr. Reid M. Ness see?

CMS counts 432 Medicare patients who saw Dr. Ness in 2024, with an average age of 71.

Show 6 more questionsShow fewer questions

What services does Dr. Reid M. Ness bill to Medicare?

In 2024, Dr. Ness' most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and surgery: digestive system (43239).

What drugs does Dr. Reid M. Ness prescribe most?

In 2024 Medicare Part D data, Dr. Ness' most prescribed drugs by claims were Famotidine, Omeprazole and Pantoprazole Sodium.

Has Dr. Reid M. Ness received payments from drug or device companies?

CMS Open Payments shows $20 in general payments to Dr. Ness from 1 company from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Reid M. Ness been practicing?

Dr. Ness graduated from medical school in 1990, 36 years ago.

Does Dr. Reid M. Ness do research?

Dmand AI links 37 publications to Dr. Ness, published from 2015 to 2023.

Who does Dr. Reid M. Ness publish with?

Dr. Ness' most frequent co-authors are Harvey Johnson Murff, MD (18 shared papers), Walter Smalley, MD (14 shared papers) and Francis M. Giardiello, MD (6 shared papers).

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