Dr. Mark Dale Messer, DO
- Part D claims, 2024
- 20
- Hospital affiliations
- 2
- Industry payments
- $19
- Medical group
- 1
- State license
- 1
- Practice address
- 6711 S New Braunfels Ave, San Antonio, TX 78223
- Practice phone
- Call (210) 531-7711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Messer'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. Mark Dale Messer is a psychiatrist in San Antonio, Texas
Dr. Messer practices at San Antonio State Hospital in San Antonio, Texas, part of State of Texas.
Dr. Messer's NPI, 1730246273, was assigned on January 3, 2007. Dr. Messer graduated from Texas College of Osteopathic Medicine in 1995. Dr. Messer holds Texas license M5377.
- NPI
- 1730246273NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800997149
- NPI enumeration date
- January 3, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (210) 531-7711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Dale Messer practices at San Antonio State Hospital in San Antonio, Texas
Dr. Messer's primary practice is San Antonio State Hospital, at 6711 S New Braunfels Ave, San Antonio, TX 78223 in Bexar County. The practice phone is (210) 531-7711.
- San Antonio State Hospital6711 S New Braunfels Ave, San Antonio, TX 78223 · Bexar CountyPhone(210) 531-7711
Source: Dmand AI Affiliation Data
Dr. Mark Dale Messer is affiliated with 2 sites of care and 1 medical group
Dr. Messer's primary practice is San Antonio State Hospital in San Antonio, Texas, part of State of Texas. Dr. Messer is also affiliated with Terrell State Hospital. The medical group on file is Austin State Hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Dale Messer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Messer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Antonio State Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Dale Messer is one of 2,406 psychiatrists in Texas
Psychiatry is Dr. Messer's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Messer is board certified in 1996 - 2007 by the TN State License. Dr. Messer is licensed in Texas.
Specialties and state licenses
- Psychiatry, TexasPrimary
Psychiatrists near Dr. Messer
Counts of psychiatrists 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. Mark Dale Messer's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Messer's median patient age at 44, with 33% women.
Dr. Messer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Mark Dale Messer wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Messer wrote 20 Medicare Part D claims. 80% of them were for generic drugs. They cover 2 drugs, with $133 in total drug cost.
Dr. Messer's Part D claims by kind of drug, 2024
- Generic16 claims80%
- Brand-name and other4 claims20%
Dr. Messer's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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
How Dr. Mark Dale Messer takes part in Medicare
Dr. Messer 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)
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Dr. Mark Dale Messer received $19 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Messer from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $19.
Companies that paid Dr. Messer the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Dale Messer graduated from Texas College of Osteopathic Medicine
Dr. Messer graduated from Texas College of Osteopathic Medicine in 1995.
- Medical school
- Board certified in 1996 - 2007
- Board certified in 2006 - 2025
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Dale Messer'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 |
| 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) |
| 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. Mark Dale Messer
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. Mark Dale Messer's NPI number?
Dr. Mark Dale Messer's NPI number is 1730246273. It was assigned on January 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Dale Messer?
Dr. Mark Dale Messer is a psychiatrist in San Antonio, Texas. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Mark Dale Messer practice?
Dr. Messer practices at 6711 S New Braunfels Ave, San Antonio, TX 78223. Dr. Messer's primary practice is San Antonio State Hospital in San Antonio, Texas, part of State of Texas.
What is Dr. Mark Dale Messer's office phone number?
The practice phone on file for Dr. Messer is (210) 531-7711.
What is Dr. Mark Dale Messer's medical license number?
Dr. Messer holds Texas license M5377.
Which hospitals is Dr. Mark Dale Messer affiliated with?
Dr. Messer practices at San Antonio State Hospital in San Antonio, Texas. Dr. Messer is also affiliated with Terrell State Hospital.
What medical group is Dr. Mark Dale Messer part of?
Dr. Messer is linked to Austin State Hospital.
Does Dr. Mark Dale Messer accept Medicare?
Yes. CMS lists Dr. Messer as accepting Medicare assignment.
Is Dr. Mark Dale Messer board certified?
Yes. Dr. Messer is board certified in 1996 - 2007 by the TN State License.
Where did Dr. Mark Dale Messer go to medical school?
Dr. Messer graduated from Texas College of Osteopathic Medicine in 1995.
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What drugs does Dr. Mark Dale Messer prescribe most?
In 2016 Medicare Part D data, Dr. Messer's most prescribed drugs by claims were Clonazepam and Metformin HCl.
Has Dr. Mark Dale Messer received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Messer from 1 company from 2016 to 2016. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Mark Dale Messer been practicing?
Dr. Messer graduated from medical school in 1995, 31 years ago.
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