Dr. Callan Volkmer, MD
- Industry payments
- $33
- Affiliated sites
- 2
- Medical group
- 1
- Insurance carriers
- 16
- State license
- 1
- Practice address
- 600 Hospital Cir, Bay City, TX 77414
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Matagorda Medical Group - HOPD
Acute Care Hospital outpatient department · Bay City, Texas
Find Dr. Volkmer'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. Callan Volkmer is a pediatrician in Bay City, Texas
Dr. Volkmer practices at Matagorda Medical Group - HOPD in Bay City, Texas.
Dr. Volkmer's NPI, 1437786811, was assigned on March 25, 2020. Dr. Volkmer graduated from Texas A&M College of Medicine - Bryan in 2020. Dr. Volkmer holds Texas license U1156.
- NPI
- 1437786811NPI Registry (opens in a new tab)
- NPI enumeration date
- March 25, 2020
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Callan Volkmer practices at Matagorda Medical Group - HOPD in Bay City, Texas
Dr. Volkmer's primary practice is Matagorda Medical Group - HOPD, at 600 Hospital Cir, Bay City, TX 77414.
- Matagorda Medical Group - HOPD600 Hospital Cir, Bay City, TX 77414
Source: Dmand AI Affiliation Data
Dr. Callan Volkmer is affiliated with 2 sites of care and 1 medical group
Dr. Volkmer's primary practice is Matagorda Medical Group - HOPD in Bay City, Texas. The medical group on file is Matagorda Medical Group. Dmand AI also links Dr. Volkmer to 1 more rural health clinic, named with a free account. Dr. Volkmer's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Callan Volkmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Volkmer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Matagorda Medical Group - HOPD | Available with a free account |
| +1 more affiliated site | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Callan Volkmer is one of 4,833 pediatricians in Texas
Pediatrics is Dr. Volkmer's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Volkmer is board certified in pediatrics by the American Board of Pediatrics. Dr. Volkmer is licensed in Texas.
Specialties and state licenses
- Pediatrics, TexasPrimary
Pediatricians near Dr. Volkmer
Counts of pediatricians 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. Callan Volkmer's patients have a median age of 6
Across all payers, Dmand AI patient panel data puts Dr. Volkmer's median patient age at 6, with 47% women.
Dr. Volkmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 6
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Callan Volkmer received $33 in industry payments from 2023 to 2024
CMS Open Payments shows 2 general payments to Dr. Volkmer from 1 drug or device company from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $33.
General payments to Dr. Volkmer by program year, 2023 to 2024
Companies that paid Dr. Volkmer the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Callan Volkmer graduated from Texas A&M College of Medicine - Bryan
Dr. Volkmer graduated from Texas A&M College of Medicine - Bryan in 2020.
- Medical school
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Callan Volkmer accepts plans from 16 insurance carriers
Dr. Volkmer is in network with 16 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Alliant Health Plans
- Aspirus Health Plan
- HCSC
- Baylor Scott and White
- +8 more carriersWith a free account
Plan types Dr. Volkmer accepts, by number of carriers
- HMO10
- PPO9
- POS5
- EPO4
- Medicare2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Callan Volkmer'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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Callan Volkmer
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. Callan Volkmer's NPI number?
Dr. Callan Volkmer's NPI number is 1437786811. It was assigned on March 25, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Callan Volkmer?
Dr. Callan Volkmer is a pediatrician in Bay City, Texas. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Callan Volkmer practice?
Dr. Volkmer practices at 600 Hospital Cir, Bay City, TX 77414. Dr. Volkmer's primary practice is Matagorda Medical Group - HOPD in Bay City, Texas. Dmand AI also links Dr. Volkmer to 1 rural health clinic.
What is Dr. Callan Volkmer's medical license number?
Dr. Volkmer holds Texas license U1156.
What medical group is Dr. Callan Volkmer part of?
Dr. Volkmer is linked to Matagorda Medical Group.
Is Dr. Callan Volkmer board certified?
Yes. Dr. Volkmer is board certified in pediatrics by the American Board of Pediatrics.
Where did Dr. Callan Volkmer go to medical school?
Dr. Volkmer graduated from Texas A&M College of Medicine - Bryan in 2020.
Has Dr. Callan Volkmer received payments from drug or device companies?
CMS Open Payments shows $33 in general payments to Dr. Volkmer from 1 company from 2023 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Callan Volkmer been practicing?
Dr. Volkmer graduated from medical school in 2020, 6 years ago.
What insurance does Dr. Callan Volkmer accept?
Dr. Volkmer is in network with 16 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
Selling to pediatrics practices?
See pediatricians in Texas by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card