Dr. James Calder Major, MD

  • Bellaire, TX
  • Ophthalmologist
NPI1700076783PAC ID8729175062
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
Social profiles

Primary practice

Retina Consultants of Houston

Bellaire, Texas

See all 4 affiliations

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.

View contacts for free

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 and contact details
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 Houston
    6300 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.

See all 4 affiliations for Dr. Major

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.

EHR by site
SiteEHR vendor and product
Retina Consultants of HoustonAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Major practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

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, TexasPrimaryLicense N2637 · 2009 to 2027 · taxonomy 207W00000X
  • Florida license2007 to 2025
  • Virginia license2003 to 2004

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.

Medicare services, 202419,074
Medicare patients977
Paid by Medicare$3.1M
Procedure codes17

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.

See all procedures by Dr. Major

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.

Book a meeting

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.

Medicare patients, 2024977
Average age76
Average risk score1.38
Also on Medicaid2%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis44%
  4. Diabetes34%
  5. Ischemic heart disease33%
  6. Chronic kidney disease27%
  7. Anxiety22%
  8. 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.

Part D claims, 2024318
Drugs named by CMS11
Total drug cost$18,914
Part D patients115

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.

See all prescribing by Dr. Major

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

For MedTech and pharma teams

Find ophthalmologists like Dr. Major by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

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.

Papers29
Years published2009 to 2025

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

Recent publications by Dr. Major

See all 29 publications and co-authors

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.

How network discovery works

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

  1. NonePhase 1: no trials
  2. 4Phase 2: 4 trials
  3. 1Phase 3: 1 trial
  4. 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

Recent clinical trials with Dr. Major

See all 6 clinical trials and co-investigators

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

$100.6Kin total
  • 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.

See all payments to Dr. Major

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

  1. 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.

  1. Medical schoolBaylor College Of Medicine
  2. Board certified in ophthalmologyAmerican Board of 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.

Plan types Dr. Major accepts, by number of carriers

  1. PPO15
  2. HMO13
  3. Medicare10
  4. POS7
  5. EPO5

Source: Dmand AI Insurance Network Data

Sources for Dr. James Calder Major's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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.

Selling to ophthalmology practices?

See ophthalmologists in Texas by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)