Dr. John S. Daniels, MD
- Medicare services, 2020
- 1,456
- Part D claims, 2024
- 106
- Hospital affiliations
- 1
- Industry payments
- $1,430
- Medical groups
- 2
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Daniels' professional email, personal email and mobile number
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Dr. John S. Daniels is an internist in Saint Louis, Missouri
Dr. Daniels practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Daniels' NPI, 1104978964, was assigned on January 18, 2007. Dr. Daniels holds Missouri license R6678.
- NPI
- 1104978964NPI Registry (opens in a new tab)
- NPI enumeration date
- January 18, 2007
- NPI status
- Active
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John S. Daniels practices at 2 locations in Saint Louis, Missouri
Dr. Daniels' primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Daniels also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. John S. Daniels is affiliated with 2 sites of care and 2 medical groups
Dr. Daniels' primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is Betty Jean Kerr People's Health Centers. Dmand AI also links Dr. Daniels to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John S. Daniels' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Daniels practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John S. Daniels is one of 2,114 internists in Missouri
Internal medicine is Dr. Daniels' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Daniels is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Dr. Daniels
Counts of internists 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. John S. Daniels billed Medicare for 1,456 services in 2020
CMS data shows 1,456 Medicare services from Dr. Daniels across 7 procedure codes in 2020. Medicare paid $56,781 for them.
Dr. Daniels' Medicare services by type, 2019 to 2020
- 2019
- 2020
- Lab and pathology
- 2019: 2,1932020: 73866%
- Office and hospital visits
- 2019: 1,2502020: 56455%
- Other services
- 2019: 3862020: 15460%
- Tests and treatments
- 2019: 152020: 0100%
Where Dr. Daniels' Medicare services took place, 2020
- In an office1,43899%
- In a facility181%
Dr. Daniels compared with the Missouri median for internists, 2020
- Dr. Daniels
- Missouri median
- Medicare services
- 1,456vs 5302.7 times
- Part D claims
- 49vs 32585% below
Medians across 2,076 internists in Missouri with Dmand AI profiles that report each measure.
Dr. Daniels' most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Daniels?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Daniels and other internists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John S. Daniels' patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Daniels' median patient age at 73, with 43% women.
Dr. Daniels' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women43%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. John S. Daniels wrote 106 Medicare Part D claims in 2024
In 2024, Dr. Daniels wrote 106 Medicare Part D claims for 19 patients. 91% of them were for generic drugs. CMS names the drug for 49 of them, across 3 drugs with 11 or more claims each, at $325 in total drug cost. In 2023, CMS named 207 claims across 10 drugs.
Dr. Daniels' Part D claims by kind of drug, 2024
- Generic96 claims91%
- Brand-name and other10 claims9%
Dr. Daniels' 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: 2072024: 4976%
Drugs named by CMS: 3 in 2024, 10 in 2023.
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
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Dr. John S. Daniels received $1,430 in industry payments from 2016 to 2020
CMS Open Payments shows 89 general payments to Dr. Daniels from 27 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 90% of the total. Astellas Pharma US Inc paid the most, $208.
General payments to Dr. Daniels by program year, 2016 to 2020
General payments to Dr. Daniels by kind, 2016 to 2020
- Food and beverage$1,28490%
- Education$14610%
Companies that paid Dr. Daniels the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John S. Daniels's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John S. Daniels
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. John S. Daniels' NPI number?
Dr. John S. Daniels' NPI number is 1104978964. It was assigned on January 18, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John S. Daniels?
Dr. John S. Daniels is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John S. Daniels practice?
Dr. Daniels practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Daniels also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Daniels' primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Daniels to 1 group practice or clinic and 1 medical group.
What is Dr. John S. Daniels' office phone number?
The practice phone on file for Dr. Daniels is (314) 747-3000.
What is Dr. John S. Daniels' medical license number?
Dr. Daniels holds Missouri license R6678.
Which hospitals is Dr. John S. Daniels affiliated with?
Dr. Daniels practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Dr. John S. Daniels part of?
Dr. Daniels is linked to Betty Jean Kerr People's Health Centers. Dmand AI links Dr. Daniels to 1 more medical group.
Does Dr. John S. Daniels accept Medicare?
Yes. CMS data shows Dr. Daniels billed Medicare for 1,456 services in 2020.
What services does Dr. John S. Daniels bill to Medicare?
In 2020, Dr. Daniels' most billed Medicare services were office visit, established patient (99214), lab and pathology test (80061) and lab and pathology test (83036).
What drugs does Dr. John S. Daniels prescribe most?
In 2024 Medicare Part D data, Dr. Daniels' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. John S. Daniels received payments from drug or device companies?
CMS Open Payments shows $1,430 in general payments to Dr. Daniels from 27 companies from 2016 to 2020. The largest total came from Astellas Pharma US Inc.
How long has Dr. John S. Daniels been practicing?
Dr. Daniels' NPI was assigned in 2007.
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