Dr. James Calder Major, MD
- Medicare services, 2024
- 19,074
- Medicare patients, 2024
- 977
- Part D claims, 2024
- 318
- Publications
- 29
- Clinical trials
- 6
- Practice address
- 6300 W S Loop, Bellaire, TX 77401
- Practice phone
- Call (713) 524-3434
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Retina Consultants of Houston
Bellaire, Texas
Find Dr. Major'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. James Calder Major is an ophthalmologist in Bellaire, Texas
Dr. Major practices at Retina Consultants of Houston in Bellaire, Texas.
Dr. Major's NPI, 1700076783, was assigned on July 26, 2007. Dr. Major graduated from Baylor College Of Medicine in 2003. Dr. Major holds Texas license N2637.
- NPI
- 1700076783NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729175062
- NPI enumeration date
- July 26, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (713) 524-3434
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Calder Major practices at Retina Consultants of Houston in Bellaire, Texas
Dr. Major's primary practice is Retina Consultants of Houston, at 6300 W S Loop, Bellaire, TX 77401 in Harris County. The practice phone is (713) 524-3434.
- Retina Consultants of Houston6300 W S Loop, Bellaire, TX 77401 · Harris CountyPhone(713) 524-3434
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James Calder Major is affiliated with 3 sites of care and 1 medical group
Dr. Major's primary practice is Retina Consultants of Houston in Bellaire, Texas. Dr. Major is also affiliated with Houston Methodist Hospital. Dmand AI also links Dr. Major to 1 more group practice or clinic and 1 medical group, 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. James Calder Major's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Major practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Retina Consultants of Houston | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Calder Major is one of 1,311 ophthalmologists in Texas
Ophthalmology is Dr. Major's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Major is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Major's licenses on file in 3 states: Texas, Florida and Virginia.
Specialties and state licenses
- Ophthalmology, TexasPrimary
- Florida license
- Virginia license
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cold sores or genital herpes, dry eye, glaucoma, hypertensive retinopathy, inflammation of iris and retinal detachment among the conditions Dr. Major treats.
Ophthalmologists near Dr. Major
Counts of ophthalmologists 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. James Calder Major billed Medicare for 19,074 services in 2024
CMS data shows 19,074 Medicare services from Dr. Major across 17 procedure codes in 2024, for 977 Medicare patients. Medicare paid $3,106,899 for them. Every service was in an office.
Dr. Major's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 10,2782024: 13,00026%
- Tests and treatments
- 2023: 4,5492024: 3,92514%
- Surgery
- 2023: 1,8942024: 1,61515%
- Other services
- 2023: 4362024: 4116%
- Office and hospital visits
- 2023: 1822024: 12332%
Dr. Major compared with the Texas median for ophthalmologists, 2024
- Dr. Major
- Texas median
- Medicare services
- 19,074vs 1,35314.1 times
- Medicare patients
- 977vs 49299% above
- Part D claims
- 258vs 61358% below
Medians across 1,290 ophthalmologists in Texas with Dmand AI profiles that report each measure.
Dr. Major'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.
Need commercial claims for Dr. Major?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Major and other ophthalmologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Calder Major treated 977 Medicare patients in 2024, average age 76
CMS counts 977 Medicare patients who saw Dr. Major in 2024. The largest group is 65 to 74, with 436 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 2% are also on Medicaid. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Major's median patient age at 71, with 58% women.
Dr. Major's Medicare patients by age, 2024
Dr. Major's Medicare patients by sex, 2024
- Women54756%
- Men43044%
Chronic conditions among Dr. Major's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes34%
- Ischemic heart disease33%
- Chronic kidney disease27%
- Anxiety22%
- Atrial fibrillation19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Major's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Calder Major wrote 318 Medicare Part D claims in 2024
In 2024, Dr. Major wrote 318 Medicare Part D claims for 115 patients. 63% of them were for generic drugs. CMS names the drug for 258 of them, across 11 drugs with 11 or more claims each, at $18,914 in total drug cost. In 2023, CMS named 306 claims across 12 drugs.
Dr. Major's Part D claims by kind of drug, 2024
- Generic199 claims63%
- Brand-name119 claims37%
Dr. Major'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3062024: 25816%
Drugs named by CMS: 11 in 2024, 12 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. James Calder Major scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Major for performance year 2024, reported as part of a group. Dr. Major accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Major's MIPS scores, performance year 2024
- 100of 100Final score
- 99.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. James Calder Major has 29 publications on record
Dmand AI links 29 papers to Dr. Major, published from 2009 to 2025. 2010 was the busiest year, with 4. The most frequent topics are Angiogenesis Inhibitors, Tomography, Optical Coherence and Visual Acuity. Dr. Major has published most often in Retina. Dr. Major's most frequent co-authors are Charles Clifton Wykoff, MD, PhD, Tien P. Wong, MD and David M. Brown, MD.
Dr. Major's papers by year, 2009 to 2025
Topics Dr. Major writes about most
- Angiogenesis Inhibitors
- Tomography, Optical Coherence
- Visual Acuity
- Retinal Detachment
- Vascular Endothelial Growth Factor A
- Antibodies, Monoclonal, Humanized
- Intravitreal Injections
- Ranibizumab
Dr. Major's most frequent co-authors
- Charles Clifton Wykoff, MD, PhD14 shared papers
- Tien P. Wong, MD12 shared papers
- David M. Brown, MD11 shared papers
Recent publications by Dr. Major
Ophthalmic Surg Lasers Imaging Retina
Ophthalmol Retina
See who Dr. Major researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Major works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. James Calder Major has worked on 6 clinical trials
Dmand AI links Dr. Major to 6 clinical trials, 4 of them phase 2 studies. Conditions studied include Diabetic Retinopathy, Macular Edema and Vitreous Hemorrhage. Greater Houston Retina Research sponsors the most, 3.
Clinical trials with Dr. Major by phase
- NonePhase 1: no trials
- 4Phase 2: 4 trials
- 1Phase 3: 1 trial
- 1Phase 4: 1 trial
Conditions in Dr. Major's trials
- Diabetic Retinopathy
- Macular Edema
- Vitreous Hemorrhage
- Diabetic Angiopathies
- Eye Hemorrhage
Investigators on the most trials with Dr. Major
- Matthew S. Benz, MD5 shared trials
- Tien P. Wong, MD5 shared trials
- Christopher Ryan Henry, MD4 shared trials
Recent clinical trials with Dr. Major
Intravitreal Aflibercept as Indicated by Real-Time Objective Imaging to Achieve Diabetic Retinopathy Improvement (opens in a new tab)
Intravitreal Aflibercept Injection for Radiation Retinopathy Trial (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. James Calder Major received $100,624 in industry payments from 2016 to 2025
CMS Open Payments shows 247 general payments to Dr. Major from 18 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 65% of the total. Genentech, Inc. paid the most, $69,041.
General payments to Dr. Major by program year, 2016 to 2025
General payments to Dr. Major by kind, 2016 to 2025
- Speaker and faculty fees$64,97065%
- Consulting fees$13,81714%
- Travel and lodging$12,93713%
- Food and beverage$7,3867%
- Honoraria$1,5152%
Companies that paid Dr. Major 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. James Calder Major has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Major.
Awards and honors for Dr. Major
- Undated
- AAO Fellow
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. James Calder Major graduated from Baylor College Of Medicine
Dr. Major graduated from Baylor College Of Medicine in 2003. Dr. Major is a member of AAO and ACS.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. James Calder Major accepts plans from 24 insurance carriers
Dr. Major is in network with 24 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 15. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- Cigna
- Excellus BlueCross BlueShield
- HCSC
- Humana
- +16 more carriersWith a free account
Plan types Dr. Major accepts, by number of carriers
- PPO15
- HMO13
- Medicare10
- POS7
- EPO5
Source: Dmand AI Insurance Network Data
Sources for Dr. James Calder Major'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. James Calder Major
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. James Calder Major's NPI number?
Dr. James Calder Major's NPI number is 1700076783. It was assigned on July 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. James Calder Major?
Dr. James Calder Major is an ophthalmologist in Bellaire, Texas. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. James Calder Major practice?
Dr. Major practices at 6300 W S Loop, Bellaire, TX 77401. Dr. Major's primary practice is Retina Consultants of Houston in Bellaire, Texas. Dmand AI also links Dr. Major to 1 group practice or clinic and 1 medical group.
What is Dr. James Calder Major's office phone number?
The practice phone on file for Dr. Major is (713) 524-3434.
What is Dr. James Calder Major's medical license number?
Dr. Major holds Texas license N2637, one of the licenses on file in 3 states.
Which states has Dr. James Calder Major been licensed in?
Dmand AI has state licenses on file for Dr. Major in Texas (2009 to 2027), Florida (2007 to 2025) and Virginia (2003 to 2004).
Which hospitals is Dr. James Calder Major affiliated with?
Dr. Major is affiliated with Houston Methodist Hospital.
Does Dr. James Calder Major accept Medicare?
Yes. CMS data shows Dr. Major billed Medicare for 19,074 services in 2024, and Dr. Major accepts Medicare assignment.
What is Dr. James Calder Major's MIPS score?
Dr. Major's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. James Calder Major see?
CMS counts 977 Medicare patients who saw Dr. Major in 2024, with an average age of 76.
Show 9 more questionsShow fewer questions
Is Dr. James Calder Major board certified?
Yes. Dr. Major is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. James Calder Major bill to Medicare?
In 2024, Dr. Major's most billed Medicare services were injected or infused drug (J2781), injected or infused drug (J2777) and eye exam or test (92134).
Where did Dr. James Calder Major go to medical school?
Dr. Major graduated from Baylor College Of Medicine in 2003.
What drugs does Dr. James Calder Major prescribe most?
In 2024 Medicare Part D data, Dr. Major's most prescribed drugs by claims were Prednisolone Acetate, Timolol Maleate and Bromfenac Sodium.
Has Dr. James Calder Major received payments from drug or device companies?
CMS Open Payments shows $100,624 in general payments to Dr. Major from 18 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. James Calder Major been practicing?
Dr. Major graduated from medical school in 2003, 23 years ago.
Does Dr. James Calder Major do research?
Dmand AI links 29 publications to Dr. Major, published from 2009 to 2025. Dr. Major has worked on 6 clinical trials.
Who does Dr. James Calder Major publish with?
Dr. Major's most frequent co-authors are Charles Clifton Wykoff, MD, PhD (14 shared papers), Tien P. Wong, MD (12 shared papers) and David M. Brown, MD (11 shared papers).
What insurance does Dr. James Calder Major accept?
Dr. Major is in network with 24 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 15. Check the plan with the practice before a visit.
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