Dr. Walter Stuart Johnston, MD
- Medicare services, 2024
- 444
- Medicare patients, 2024
- 258
- Part D claims, 2024
- 50
- Hospital affiliations
- 2
- Industry payments
- $12,117
- Practice address
- 3600 Shire Blvd, Richardson, TX 75082
- Practice phone
- Call (972) 487-6400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
North Dallas Surgical Specialists, PA
Richardson, Texas
Find Dr. 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.
Dr. Walter Stuart Johnston is a general surgeon in Richardson, Texas
Dr. Johnston practices at North Dallas Surgical Specialists, PA in Richardson, Texas.
Dr. Johnston's NPI, 1558312504, was assigned on May 15, 2006. Dr. Johnston graduated from UT Southwestern Medical Center in 1992. Dr. Johnston holds Texas license J4238.
- NPI
- 1558312504NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597935809
- NPI enumeration date
- May 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (972) 487-6400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walter Stuart Johnston practices at North Dallas Surgical Specialists, PA in Richardson, Texas
Dr. Johnston's primary practice is North Dallas Surgical Specialists, PA, at 3600 Shire Blvd, Richardson, TX 75082 in Dallas County. The practice phone is (972) 487-6400.
- North Dallas Surgical Specialists, PA3600 Shire Blvd, Richardson, TX 75082 · Dallas CountyPhone(972) 487-6400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Walter Stuart Johnston is affiliated with 4 sites of care and 1 medical group
Dr. Johnston's primary practice is North Dallas Surgical Specialists, PA in Richardson, Texas. Dr. Johnston is also affiliated with Methodist Richardson Medical Center. The medical group on file is North Dallas Surgical Specialists. Dmand AI also links Dr. Johnston to 1 more hospital and 1 group practice or clinic, each 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 Dr. Walter Stuart Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| North Dallas Surgical Specialists, PA | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Walter Stuart Johnston is one of 1,939 general surgeons in Texas
Surgery is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Johnston is board certified in surgery by the American Board of Surgery. Dr. Johnston is licensed in Texas.
Specialties and state licenses
- Surgery, TexasPrimary
Clinical focus
Dmand AI lists abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, colon removal, gallbladder removal, groin hernia surgery, mastectomy and traumatic coma among the conditions Dr. Johnston treats.
General surgeons near Dr. Johnston
Counts of general surgeons 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. Walter Stuart Johnston billed Medicare for 444 services in 2024
CMS data shows 444 Medicare services from Dr. Johnston across 6 procedure codes in 2024, for 258 Medicare patients. Medicare paid $39,100 for them.
Dr. Johnston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3482024: 43324%
- Surgery
- 2023: 312024: 1165%
Where Dr. Johnston's Medicare services took place, 2024
- In an office18141%
- In a facility26359%
Dr. Johnston compared with the Texas median for general surgeons, 2024
- Dr. Johnston
- Texas median
- Medicare services
- 444vs 1183.8 times
- Medicare patients
- 258vs 972.7 times
- Part D claims
- 32vs 4224% below
Medians across 1,674 general surgeons in Texas with Dmand AI profiles that report each measure.
Dr. Johnston's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter Stuart Johnston treated 258 Medicare patients in 2024, average age 75
CMS counts 258 Medicare patients who saw Dr. Johnston in 2024. The largest group is 75 to 84, with 109 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.77, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Johnston's median patient age at 64, with 61% women.
Dr. Johnston's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Johnston's Medicare patients by sex, 2024
- Women15058%
- Men10842%
Chronic conditions among Dr. Johnston's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Cancer41%
- Ischemic heart disease39%
- Mood disorders39%
- Depression36%
- Chronic kidney disease35%
Share of Medicare patients with each condition. A patient can have several.
Dr. 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 64
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter Stuart Johnston wrote 50 Medicare Part D claims in 2024
In 2024, Dr. Johnston wrote 50 Medicare Part D claims for 43 patients. 100% of them were for generic drugs. CMS names the drug for 32 of them, across 1 drug with 11 or more claims each, at $123 in total drug cost. In 2023, CMS named 47 claims across 2 drugs.
Dr. Johnston's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Johnston's Part D claims, 2024
- Opioids78%39 of 50 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 472024: 3232%
Drugs named by CMS: 1 in 2024, 2 in 2023.
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
Dr. Walter Stuart Johnston ranks in the 89th percentile for hernia repair - groin (open) in Medicare
Dr. Johnston accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 11 procedures of hernia repair - groin (open) by Dr. Johnston, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Johnston ranks in Medicare procedure volume
- Hernia repair - groin (open)
- 89th percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Walter Stuart Johnston received $12,117 in industry payments from 2016 to 2025
CMS Open Payments shows 99 general payments to Dr. Johnston from 28 drug and device companies from 2016 to 2025. Education make up the largest share, 62% of the total. Intuitive Surgical, Inc. paid the most, $10,621.
General payments to Dr. Johnston by program year, 2016 to 2025
General payments to Dr. Johnston by kind, 2016 to 2025
- Education$7,50062%
- Food and beverage$2,39420%
- Travel and lodging$2,22318%
Companies that paid Dr. Johnston the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter Stuart Johnston has 1 award and honors on record
Dmand AI lists 1 award for Dr. Johnston.
Awards and honors for Dr. Johnston
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Walter Stuart Johnston graduated from UT Southwestern Medical Center
Dr. Johnston graduated from UT Southwestern Medical Center in 1992. Dr. Johnston is a member of ACS.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Walter Stuart Johnston accepts plans from 21 insurance carriers
Dr. Johnston is in network with 21 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Cigna
- HCSC
- Humana
- Alliant Health Plans
- +13 more carriersWith a free account
Plan types Dr. Johnston accepts, by number of carriers
- PPO13
- HMO12
- Medicare10
- POS6
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Walter Stuart 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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Walter Stuart 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 Dr. Walter Stuart Johnston's NPI number?
Dr. Walter Stuart Johnston's NPI number is 1558312504. It was assigned on May 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter Stuart Johnston?
Dr. Walter Stuart Johnston is a general surgeon in Richardson, Texas. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Walter Stuart Johnston practice?
Dr. Johnston practices at 3600 Shire Blvd, Richardson, TX 75082. Dr. Johnston's primary practice is North Dallas Surgical Specialists, PA in Richardson, Texas. Dmand AI also links Dr. Johnston to 1 hospital and 1 group practice or clinic.
What is Dr. Walter Stuart Johnston's office phone number?
The practice phone on file for Dr. Johnston is (972) 487-6400.
What is Dr. Walter Stuart Johnston's medical license number?
Dr. Johnston holds Texas license J4238.
Which hospitals is Dr. Walter Stuart Johnston affiliated with?
Dr. Johnston is affiliated with Methodist Richardson Medical Center. Dmand AI links Dr. Johnston to 1 more hospital.
What medical group is Dr. Walter Stuart Johnston part of?
Dr. Johnston is linked to North Dallas Surgical Specialists.
Does Dr. Walter Stuart Johnston accept Medicare?
Yes. CMS data shows Dr. Johnston billed Medicare for 444 services in 2024, and Dr. Johnston accepts Medicare assignment.
How many Medicare patients does Dr. Walter Stuart Johnston see?
CMS counts 258 Medicare patients who saw Dr. Johnston in 2024, with an average age of 75.
Is Dr. Walter Stuart Johnston board certified?
Yes. Dr. Johnston is board certified in surgery by the American Board of Surgery.
Show 6 more questionsShow fewer questions
What services does Dr. Walter Stuart Johnston bill to Medicare?
In 2024, Dr. Johnston's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and office visit, established patient (99214).
Where did Dr. Walter Stuart Johnston go to medical school?
Dr. Johnston graduated from UT Southwestern Medical Center in 1992.
What drugs does Dr. Walter Stuart Johnston prescribe most?
In 2024 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Walter Stuart Johnston received payments from drug or device companies?
CMS Open Payments shows $12,117 in general payments to Dr. Johnston from 28 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Walter Stuart Johnston been practicing?
Dr. Johnston graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Walter Stuart Johnston accept?
Dr. Johnston is in network with 21 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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