Dr. Nicholas O. Davidson, MD

  • Saint Louis, MO
  • Gastroenterologist
NPI1659397958
Medicare services, 2024
24
Medicare patients, 2024
29
Part D claims, 2024
65
MIPS score, 2024
84
Hospital affiliations
2
Practice address
3015 N Ballas Rd, Saint Louis, MO 63131
Practice phone
Call (314) 996-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Missouri Baptist Medical Center

Hospital · Saint Louis, Missouri

See all 4 affiliations

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Dr. Nicholas O. Davidson is a gastroenterologist in Saint Louis, Missouri

Dr. Davidson practices at Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health.

Dr. Davidson's NPI, 1659397958, was assigned on July 14, 2006. Dr. Davidson holds Missouri license 117889.

NPI and contact details
NPI enumeration date
July 14, 2006
NPI status
Active
Practice phone
(314) 996-5000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
78
Medical school graduation
1974

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

Dr. Nicholas O. Davidson practices at Missouri Baptist Medical Center in Saint Louis, Missouri

Dr. Davidson's primary practice is Missouri Baptist Medical Center, at 3015 N Ballas Rd, Saint Louis, MO 63131 in St. Louis County. The practice phone is (314) 996-5000.

Source: Dmand AI Affiliation Data

Dr. Nicholas O. Davidson is affiliated with 3 sites of care and 1 medical group

Dr. Davidson's primary practice is Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Davidson to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 4 affiliations for Dr. Davidson

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

Dmand AI tracks the EHR system at Dr. Nicholas O. Davidson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Davidson practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Missouri Baptist Medical CenterAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Nicholas O. Davidson is one of 329 gastroenterologists in Missouri

Gastroenterology is Dr. Davidson's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Davidson is licensed in Missouri.

Specialties and state licenses

  • Gastroenterology, MissouriPrimaryLicense 117889 · taxonomy 207RG0100X

Gastroenterologists near Dr. Davidson

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. Nicholas O. Davidson billed Medicare for 24 services in 2024

CMS data shows 24 Medicare services from Dr. Davidson across 2 procedure codes in 2024, for 29 Medicare patients. Medicare paid $3,032 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202424
Medicare patients29
Paid by Medicare$3,032
Procedure codes2

Dr. Davidson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 02024: 24
Office and hospital visits
2023: 272024: 0100%

Dr. Davidson compared with the Missouri median for gastroenterologists, 2024

  • Dr. Davidson
  • Missouri median
Medicare services
24vs 41694% below
Medicare patients
29vs 29690% below
Part D claims
47vs 43489% below

Medians across 337 gastroenterologists in Missouri with Dmand AI profiles that report each measure.

Dr. Davidson's 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.

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

Dr. Nicholas O. Davidson treated 29 Medicare patients in 2024, average age 72

CMS counts 29 Medicare patients who saw Dr. Davidson in 2024. The largest group is 65 to 74, with 16 patients. 75% of them have high blood pressure, and 69% have high cholesterol. Their average risk score is 1.03, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Davidson's median patient age at 31, with 80% women.

Medicare patients, 202429
Average age72
Average risk score1.03

Dr. Davidson's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Davidson's Medicare patients by sex, 2024

  • Women1655%
  • Men1345%

Chronic conditions among Dr. Davidson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol69%
  3. Arthritis52%
  4. Diabetes38%

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

Dr. Davidson's patients across all payers

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

Patient panel by age, all payers

Median age 31

Patient panel by sex, all payers

  • Women80%
  • Men20%

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

Dr. Nicholas O. Davidson wrote 65 Medicare Part D claims in 2024

In 2024, Dr. Davidson wrote 65 Medicare Part D claims for 50 patients. 85% of them were for generic drugs. CMS names the drug for 47 of them, across 2 drugs with 11 or more claims each, at $533 in total drug cost. In 2023, CMS named 52 claims across 2 drugs.

Part D claims, 202465
Drugs named by CMS2
Total drug cost$533
Part D patients50

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

  • Generic55 claims85%
  • Brand-name and other10 claims15%

Dr. Davidson's 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: 522024: 4710%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Dr. Davidson

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. Nicholas O. Davidson scored 84 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Davidson for performance year 2024, reported as part of a group.

Dr. Davidson's MIPS scores, performance year 2024

  • 84of 100Final score
  • 71.6of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 76of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Nicholas O. Davidson received $254 in industry payments from 2017 to 2024

CMS Open Payments shows 3 general payments to Dr. Davidson from 3 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $125.

General payments to Dr. Davidson by program year, 2017 to 2024

Companies that paid Dr. Davidson the most, 2017 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Davidson

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

Sources for Dr. Nicholas O. Davidson'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 percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
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. Nicholas O. Davidson

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. Nicholas O. Davidson's NPI number?

Dr. Nicholas O. Davidson's NPI number is 1659397958. It was assigned on July 14, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Nicholas O. Davidson?

Dr. Nicholas O. Davidson is a gastroenterologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Nicholas O. Davidson practice?

Dr. Davidson practices at 3015 N Ballas Rd, Saint Louis, MO 63131. Dr. Davidson's primary practice is Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Davidson to 1 hospital and 1 group practice or clinic.

What is Dr. Nicholas O. Davidson's office phone number?

The practice phone on file for Dr. Davidson is (314) 996-5000.

What is Dr. Nicholas O. Davidson's medical license number?

Dr. Davidson holds Missouri license 117889.

Which hospitals is Dr. Nicholas O. Davidson affiliated with?

Dr. Davidson practices at Missouri Baptist Medical Center in Saint Louis, Missouri. Dmand AI links Dr. Davidson to 1 more hospital.

What medical group is Dr. Nicholas O. Davidson part of?

Dr. Davidson is linked to WashU Medicine Psychiatry.

Does Dr. Nicholas O. Davidson accept Medicare?

Yes. CMS data shows Dr. Davidson billed Medicare for 24 services in 2024.

What is Dr. Nicholas O. Davidson's MIPS score?

Dr. Davidson's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.

How many Medicare patients does Dr. Nicholas O. Davidson see?

CMS counts 29 Medicare patients who saw Dr. Davidson in 2024, with an average age of 72.

Show 4 more questionsShow fewer questions

What services does Dr. Nicholas O. Davidson bill to Medicare?

In 2024, Dr. Davidson's most billed Medicare services were surgery: digestive system (45380) and surgery: digestive system (45385).

What drugs does Dr. Nicholas O. Davidson prescribe most?

In 2024 Medicare Part D data, Dr. Davidson's most prescribed drugs by claims were Gavilyte-G and Omeprazole.

Has Dr. Nicholas O. Davidson received payments from drug or device companies?

CMS Open Payments shows $254 in general payments to Dr. Davidson from 3 companies from 2017 to 2024. The largest total came from Merck Sharp & Dohme Corporation.

How long has Dr. Nicholas O. Davidson been practicing?

Dr. Davidson graduated from medical school in 1974, 52 years ago.

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