Mark Robert Johnston, AuD, CCC-A
- Medicare patients, 2024
- 647
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2008
- Practice address
- 7940 Floyd Curl Dr, San Antonio, TX 78229
- Practice phone
- Call (210) 616-0096
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Alamo ENT Associates
San Antonio, Texas
Find Mark Johnston'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.
Mark Robert Johnston is an audiologist in San Antonio, Texas
Mark Johnston practices at Alamo ENT Associates in San Antonio, Texas.
Mark Johnston's NPI, 1326295726, was assigned on August 27, 2008. Mark Johnston holds Texas license 50770.
- NPI
- 1326295726NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810054194
- NPI enumeration date
- August 27, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (210) 616-0096
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Robert Johnston practices at Alamo ENT Associates in San Antonio, Texas
Mark Johnston's primary practice is Alamo ENT Associates, at 7940 Floyd Curl Dr, San Antonio, TX 78229 in Bexar County. The practice phone is (210) 616-0096.
- Alamo ENT Associates7940 Floyd Curl Dr, San Antonio, TX 78229 · Bexar CountyPhone(210) 616-0096
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mark Robert Johnston is affiliated with 2 sites of care and 1 medical group
Mark Johnston's primary practice is Alamo ENT Associates in San Antonio, Texas. The medical group on file is Alamo ENT Associates. Dmand AI also links Mark Johnston to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mark Robert Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Johnston practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alamo ENT Associates | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark Robert Johnston is one of 824 audiologists in Texas
Audiologist is Mark Johnston's primary specialty in the NPI Registry, under taxonomy code 231H00000X. Mark Johnston is licensed in Texas.
Specialties and state licenses
- Audiologist, TexasPrimary
Audiologists near Mark Johnston
Counts of audiologists 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
Mark Robert Johnston treated 647 Medicare patients in 2024, average age 76
CMS counts 647 Medicare patients who saw Mark Johnston in 2024. The largest group is 65 to 74, with 299 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mark Johnston's median patient age at 74, with 55% women.
Mark Johnston's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mark Johnston's Medicare patients by sex, 2024
- Women36757%
- Men28043%
Chronic conditions among Mark Johnston's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis51%
- Ischemic heart disease35%
- Diabetes26%
- Chronic kidney disease23%
- Anxiety21%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Mark Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Mark Robert Johnston takes part in Medicare
Mark Johnston 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)
Sources for Mark Robert Johnston'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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 Mark Robert Johnston
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Robert Johnston's NPI number?
Mark Robert Johnston's NPI number is 1326295726. It was assigned on August 27, 2008, and it is active in the NPI Registry.
What does Mark Robert Johnston specialize in?
Mark Robert Johnston is an audiologist in San Antonio, Texas. The primary specialty in the NPI Registry is Audiologist (taxonomy code 231H00000X).
Where does Mark Robert Johnston practice?
Mark Johnston practices at 7940 Floyd Curl Dr, San Antonio, TX 78229. Mark Johnston's primary practice is Alamo ENT Associates in San Antonio, Texas. Dmand AI also links Mark Johnston to 1 group practice or clinic.
What is Mark Robert Johnston's office phone number?
The practice phone on file for Mark Johnston is (210) 616-0096.
What is Mark Robert Johnston's medical license number?
Mark Johnston holds Texas license 50770.
What medical group is Mark Robert Johnston part of?
Mark Johnston is linked to Alamo ENT Associates.
Does Mark Robert Johnston accept Medicare?
Yes. CMS lists Mark Johnston as accepting Medicare assignment.
How many Medicare patients does Mark Robert Johnston see?
CMS counts 647 Medicare patients who saw Mark Johnston in 2024, with an average age of 76.
How long has Mark Robert Johnston been practicing?
Mark Johnston graduated from medical school in 2006, 20 years ago.
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