Dr. Nathanael Maxwell Herndier, DO
- Hospital affiliations
- 5
- Industry payments
- $72
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 10010 Kennerly Road, Saint Louis, MO 63128
- Practice phone
- Call (314) 525-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Herndier's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Nathanael Maxwell Herndier is a diagnostic radiologist in Saint Louis, Missouri
Dr. Herndier practices at Mercy Hospital South in Saint Louis, Missouri, part of Mercy.
Dr. Herndier's NPI, 1881153740, was assigned on March 19, 2019. Dr. Herndier graduated from College of Osteo Med of the Pacific at Pomona in 2019. Dr. Herndier holds Missouri license 2024001737.
- NPI
- 1881153740NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810311123
- NPI enumeration date
- March 19, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 525-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathanael Maxwell Herndier practices at Mercy Hospital South in Saint Louis, Missouri
Dr. Herndier's primary practice is Mercy Hospital South, at 10010 Kennerly Road, Saint Louis, MO 63128 in St. Louis County. The practice phone is (314) 525-1000.
- Mercy Hospital South10010 Kennerly Road, Saint Louis, MO 63128 · St. Louis CountyPhone(314) 525-1000
Source: Dmand AI Affiliation Data
Dr. Nathanael Maxwell Herndier is affiliated with 8 sites of care and 3 medical groups
Dr. Herndier's primary practice is Mercy Hospital South in Saint Louis, Missouri, part of Mercy. Dr. Herndier is also affiliated with Mercy Hospital St. Louis. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Herndier to 3 more hospitals, 3 group practices and clinics and 2 medical groups, 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. Nathanael Maxwell Herndier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Herndier practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital South | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercy and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nathanael Maxwell Herndier is one of 679 diagnostic radiologists in Missouri
Diagnostic radiology is Dr. Herndier's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Herndier is licensed in Missouri.
Specialties and state licenses
- Diagnostic radiology, MissouriPrimary
Diagnostic radiologists near Dr. Herndier
Counts of diagnostic radiologists 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. Nathanael Maxwell Herndier's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Herndier's median patient age at 70, with 57% women.
Dr. Herndier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
How Dr. Nathanael Maxwell Herndier takes part in Medicare
Dr. Herndier accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathanael Maxwell Herndier received $72 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Dr. Herndier from 1 drug or device company from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AngioDynamics, Inc. paid the most, $72.
General payments to Dr. Herndier by program year, 2024 to 2025
Companies that paid Dr. Herndier the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nathanael Maxwell Herndier graduated from College of Osteo Med of the Pacific at Pomona
Dr. Herndier graduated from College of Osteo Med of the Pacific at Pomona in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nathanael Maxwell Herndier'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Nathanael Maxwell Herndier
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. Nathanael Maxwell Herndier's NPI number?
Dr. Nathanael Maxwell Herndier's NPI number is 1881153740. It was assigned on March 19, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathanael Maxwell Herndier?
Dr. Nathanael Maxwell Herndier is a diagnostic radiologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Nathanael Maxwell Herndier practice?
Dr. Herndier practices at 10010 Kennerly Road, Saint Louis, MO 63128. Dr. Herndier's primary practice is Mercy Hospital South in Saint Louis, Missouri, part of Mercy. Dmand AI also links Dr. Herndier to 3 hospitals, 3 group practices and clinics and 2 medical groups.
What is Dr. Nathanael Maxwell Herndier's office phone number?
The practice phone on file for Dr. Herndier is (314) 525-1000.
What is Dr. Nathanael Maxwell Herndier's medical license number?
Dr. Herndier holds Missouri license 2024001737.
Which hospitals is Dr. Nathanael Maxwell Herndier affiliated with?
Dr. Herndier practices at Mercy Hospital South in Saint Louis, Missouri. Dr. Herndier is also affiliated with Mercy Hospital St. Louis. Dmand AI links Dr. Herndier to 3 more hospitals.
What medical group is Dr. Nathanael Maxwell Herndier part of?
Dr. Herndier is linked to WashU Medicine Psychiatry. Dmand AI links Dr. Herndier to 2 more medical groups.
Does Dr. Nathanael Maxwell Herndier accept Medicare?
Yes. CMS lists Dr. Herndier as accepting Medicare assignment.
Where did Dr. Nathanael Maxwell Herndier go to medical school?
Dr. Herndier graduated from College of Osteo Med of the Pacific at Pomona in 2019.
Has Dr. Nathanael Maxwell Herndier received payments from drug or device companies?
CMS Open Payments shows $72 in general payments to Dr. Herndier from 1 company from 2024 to 2025. The largest total came from AngioDynamics, Inc.
How long has Dr. Nathanael Maxwell Herndier been practicing?
Dr. Herndier graduated from medical school in 2019, 7 years ago.
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