Isaac J. Callen, CRNA
- Medicare patients, 2024
- 113
- Hospital affiliations
- 1
- Industry payments
- $17
- Medical groups
- 3
- State license
- 1
- Practice address
- 6420 Clayton Rd, Saint Louis, MO 63117
- Practice phone
- Call (314) 768-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Isaac Callen'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.
Isaac J. Callen is a nurse anesthetist in Saint Louis, Missouri
Isaac Callen practices at SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri, part of SSM Health Care.
Isaac Callen's NPI, 1831494020, was assigned on January 19, 2011. Isaac Callen holds Missouri license 2005024770.
- NPI
- 1831494020NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486836103
- NPI enumeration date
- January 19, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 768-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Isaac J. Callen practices at SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri
Isaac Callen's primary practice is SSM Health St. Mary's Hospital - St. Louis, at 6420 Clayton Rd, Saint Louis, MO 63117 in St. Louis County. The practice phone is (314) 768-8000.
- SSM Health St. Mary's Hospital - St. Louis6420 Clayton Rd, Saint Louis, MO 63117 · St. Louis CountyPhone(314) 768-8000
Source: Dmand AI Affiliation Data
Isaac J. Callen is affiliated with 1 site of care and 3 medical groups
Isaac Callen's primary practice is SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri, part of SSM Health Care. The medical group on file is Metro-West Anesthesia Group. Dmand AI also links Isaac Callen to 2 more 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 Isaac J. Callen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Isaac Callen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health St. Mary's Hospital - St. Louis | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Isaac J. Callen is one of 1,529 nurse anesthetists in Missouri
Nurse anesthetist, certified registered is Isaac Callen's primary specialty in the NPI Registry, under taxonomy code 367500000X. Isaac Callen is licensed in Missouri.
Specialties and state licenses
- Certified registered nurse anesthetist, MissouriPrimary
Nurse anesthetists near Isaac Callen
Counts of nurse anesthetists 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
Isaac J. Callen treated 113 Medicare patients in 2024, average age 71
CMS counts 113 Medicare patients who saw Isaac Callen in 2024. The largest group is 65 to 74, with 60 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.02, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Isaac Callen's median patient age at 61, with 66% women.
Isaac Callen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Isaac Callen's Medicare patients by sex, 2024
- Women6759%
- Men4641%
Chronic conditions among Isaac Callen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Diabetes43%
- Anxiety39%
- Chronic kidney disease35%
- Mood disorders34%
- Depression31%
Share of Medicare patients with each condition. A patient can have several.
Isaac Callen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Isaac J. Callen takes part in Medicare
Isaac Callen 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)
Isaac J. Callen received $17 in industry payments in 2025
CMS Open Payments shows 1 general payment to Isaac Callen from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $17.
Companies that paid Isaac Callen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Isaac J. Callen'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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 Isaac J. Callen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Isaac J. Callen's NPI number?
Isaac J. Callen's NPI number is 1831494020. It was assigned on January 19, 2011, and it is active in the NPI Registry.
What does Isaac J. Callen specialize in?
Isaac J. Callen is a nurse anesthetist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).
Where does Isaac J. Callen practice?
Isaac Callen practices at 6420 Clayton Rd, Saint Louis, MO 63117. Isaac Callen's primary practice is SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri, part of SSM Health Care. Dmand AI also links Isaac Callen to 2 medical groups.
What is Isaac J. Callen's office phone number?
The practice phone on file for Isaac Callen is (314) 768-8000.
What is Isaac J. Callen's medical license number?
Isaac Callen holds Missouri license 2005024770.
Which hospitals is Isaac J. Callen affiliated with?
Isaac Callen practices at SSM Health St. Mary's Hospital - St. Louis in Saint Louis, Missouri.
What medical group is Isaac J. Callen part of?
Isaac Callen is linked to Metro-West Anesthesia Group. Dmand AI links Isaac Callen to 2 more medical groups.
Does Isaac J. Callen accept Medicare?
Yes. CMS lists Isaac Callen as accepting Medicare assignment.
How many Medicare patients does Isaac J. Callen see?
CMS counts 113 Medicare patients who saw Isaac Callen in 2024, with an average age of 71.
Has Isaac J. Callen received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Isaac Callen from 1 company from 2025 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Isaac J. Callen been practicing?
Isaac Callen graduated from medical school in 2010, 16 years ago.
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