Dr. Mark Justin Maynard, DO
- Medicare services, 2024
- 838
- Medicare patients, 2024
- 548
- Part D claims, 2024
- 271
- MIPS score, 2024
- 99
- Hospital affiliations
- 1
- Practice address
- 1650 W College St, Grapevine, TX 76051
- Practice phone
- Call (817) 481-1588
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Maynard's professional email, personal email and mobile number
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Dr. Mark Justin Maynard is an emergency medicine physician in Grapevine, Texas
Dr. Maynard practices at Baylor Scott & White Medical Center - Grapevine in Grapevine, Texas, part of Baylor Scott & White Health.
Dr. Maynard's NPI, 1598021925, was assigned on April 10, 2012. Dr. Maynard graduated from Arizona College of Osteopathic Medicine - Glendale in 2012. Dr. Maynard holds Texas license P8945.
- NPI
- 1598021925NPI Registry (opens in a new tab)
- NPI enumeration date
- April 10, 2012
- NPI status
- Active
- Practice phone
- (817) 481-1588
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mark Justin Maynard practices at Baylor Scott & White Medical Center - Grapevine in Grapevine, Texas
Dr. Maynard's primary practice is Baylor Scott & White Medical Center - Grapevine, at 1650 W College St, Grapevine, TX 76051 in Tarrant County. The practice phone is (817) 481-1588.
- Baylor Scott & White Medical Center - Grapevine1650 W College St, Grapevine, TX 76051 · Tarrant CountyPhone(817) 481-1588
Source: Dmand AI Affiliation Data
Dr. Mark Justin Maynard is affiliated with 1 site of care and 5 medical groups
Dr. Maynard's primary practice is Baylor Scott & White Medical Center - Grapevine in Grapevine, Texas, part of Baylor Scott & White Health. The medical group on file is Baylor Scott & White Health. Dmand AI also links Dr. Maynard to 4 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 Dr. Mark Justin Maynard's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maynard practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baylor Scott & White Medical Center - Grapevine | Available with a free account |
| +4 medical groups | 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 Baylor Scott & White Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Justin Maynard is one of 4,831 emergency medicine physicians in Texas
Emergency medicine is Dr. Maynard's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Maynard is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Maynard is licensed in Texas.
Specialties and state licenses
- Emergency medicine, TexasPrimary
Emergency medicine physicians near Dr. Maynard
Counts of emergency medicine physicians 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 Justin Maynard billed Medicare for 838 services in 2024
CMS data shows 838 Medicare services from Dr. Maynard across 4 procedure codes in 2024, for 548 Medicare patients. Medicare paid $80,994 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Maynard's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3482024: 55860%
- Tests and treatments
- 2023: 1592024: 28076%
- Imaging
- 2023: 292024: 0100%
Dr. Maynard compared with the Texas median for emergency medicine physicians, 2024
- Dr. Maynard
- Texas median
- Medicare services
- 838vs 2253.7 times
- Medicare patients
- 548vs 2062.7 times
- Part D claims
- 160vs 742.2 times
Medians across 4,588 emergency medicine physicians in Texas with Dmand AI profiles that report each measure.
Dr. Maynard'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. Mark Justin Maynard treated 548 Medicare patients in 2024, average age 76
CMS counts 548 Medicare patients who saw Dr. Maynard in 2024. The largest group is 75 to 84, with 201 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 2.05, 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. Maynard's median patient age at 53, with 58% women.
Dr. Maynard's Medicare patients by age, 2024
Dr. Maynard's Medicare patients by sex, 2024
- Women28452%
- Men26448%
Chronic conditions among Dr. Maynard's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Ischemic heart disease50%
- Diabetes40%
- Mood disorders40%
- Chronic kidney disease39%
- Anxiety37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maynard's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Justin Maynard wrote 271 Medicare Part D claims in 2024
In 2024, Dr. Maynard wrote 271 Medicare Part D claims for 189 patients. 94% of them were for generic drugs. CMS names the drug for 160 of them, across 6 drugs with 11 or more claims each, at $1,180 in total drug cost. In 2023, CMS named 48 claims across 3 drugs.
Dr. Maynard's Part D claims by kind of drug, 2024
- Generic256 claims94%
- Brand-name and other15 claims6%
Dr. Maynard'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. Maynard's Part D claims, 2024
- Opioids15%41 of 271 claims
- Antibiotics23%62 of 271 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: 482024: 160233%
Drugs named by CMS: 6 in 2024, 3 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. Mark Justin Maynard scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Maynard for performance year 2024, reported as part of a group.
Dr. Maynard's MIPS scores, performance year 2024
- 99of 100Final score
- 93.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark Justin Maynard received $26 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Maynard from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Teleflex LLC paid the most, $26.
Companies that paid Dr. Maynard the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Justin Maynard graduated from Arizona College of Osteopathic Medicine - Glendale
Dr. Maynard graduated from Arizona College of Osteopathic Medicine - Glendale in 2012.
- Medical school
- Board certified in emergency medicine
- Board certified in 2014 - 2027
Source: Dmand AI Professional Profile Data
Dr. Mark Justin Maynard accepts plans from 13 insurance carriers
Dr. Maynard is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Alliant Health Plans
- Baylor Scott and White
- Blue Cross and Blue Shield of Kansas City
- +5 more carriersWith a free account
Plan types Dr. Maynard accepts, by number of carriers
- HMO9
- PPO8
- POS4
- EPO3
- Medicare3
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark Justin Maynard'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 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 | Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Mark Justin Maynard
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 Justin Maynard's NPI number?
Dr. Mark Justin Maynard's NPI number is 1598021925. It was assigned on April 10, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Justin Maynard?
Dr. Mark Justin Maynard is an emergency medicine physician in Grapevine, Texas. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mark Justin Maynard practice?
Dr. Maynard practices at 1650 W College St, Grapevine, TX 76051. Dr. Maynard's primary practice is Baylor Scott & White Medical Center - Grapevine in Grapevine, Texas, part of Baylor Scott & White Health. Dmand AI also links Dr. Maynard to 4 medical groups.
What is Dr. Mark Justin Maynard's office phone number?
The practice phone on file for Dr. Maynard is (817) 481-1588.
What is Dr. Mark Justin Maynard's medical license number?
Dr. Maynard holds Texas license P8945.
Which hospitals is Dr. Mark Justin Maynard affiliated with?
Dr. Maynard practices at Baylor Scott & White Medical Center - Grapevine in Grapevine, Texas.
What medical group is Dr. Mark Justin Maynard part of?
Dr. Maynard is linked to Baylor Scott & White Health. Dmand AI links Dr. Maynard to 4 more medical groups.
Does Dr. Mark Justin Maynard accept Medicare?
Yes. CMS data shows Dr. Maynard billed Medicare for 838 services in 2024.
What is Dr. Mark Justin Maynard's MIPS score?
Dr. Maynard's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mark Justin Maynard see?
CMS counts 548 Medicare patients who saw Dr. Maynard in 2024, with an average age of 76.
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Is Dr. Mark Justin Maynard board certified?
Yes. Dr. Maynard is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Mark Justin Maynard bill to Medicare?
In 2024, Dr. Maynard's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did Dr. Mark Justin Maynard go to medical school?
Dr. Maynard graduated from Arizona College of Osteopathic Medicine - Glendale in 2012.
What drugs does Dr. Mark Justin Maynard prescribe most?
In 2024 Medicare Part D data, Dr. Maynard's most prescribed drugs by claims were Diclofenac Sodium, Hydrocodone-Acetaminophen and Ondansetron ODT.
Has Dr. Mark Justin Maynard received payments from drug or device companies?
CMS Open Payments shows $26 in general payments to Dr. Maynard from 1 company from 2023 to 2023. The largest total came from Teleflex LLC.
How long has Dr. Mark Justin Maynard been practicing?
Dr. Maynard graduated from medical school in 2012, 14 years ago.
What insurance does Dr. Mark Justin Maynard accept?
Dr. Maynard is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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