Dr. John Francis Maher III, MD
- Medicare services, 2024
- 6,399
- Medicare patients, 2024
- 1,532
- Part D claims, 2024
- 2,154
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 23560 Crenshaw Blvd, Torrance, CA 90505
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Torrance Surgery Center, LP - HOPD
Acute Care Hospital outpatient department · Torrance, California
Find Dr. Maher's professional email, personal email and mobile number
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Dr. John Francis Maher III is an ophthalmologist in Torrance, California
Dr. Maher practices at Torrance Surgery Center, LP - HOPD in Torrance, California.
Dr. Maher's NPI, 1265561211, was assigned on March 5, 2007. Dr. Maher graduated from Loyola University Chicago Stritch School of Medicine in 1981. Dr. Maher holds California license G54565.
- NPI
- 1265561211NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658398672
- NPI enumeration date
- March 5, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Francis Maher III practices at Torrance Surgery Center, LP - HOPD in Torrance, California
Dr. Maher's primary practice is Torrance Surgery Center, LP - HOPD, at 23560 Crenshaw Blvd, Torrance, CA 90505.
- Torrance Surgery Center, LP - HOPD23560 Crenshaw Blvd, Torrance, CA 90505
Source: Dmand AI Affiliation Data
Dr. John Francis Maher III is affiliated with 4 sites of care and 1 medical group
Dr. Maher's primary practice is Torrance Surgery Center, LP - HOPD in Torrance, California. Dr. Maher is also affiliated with Providence Little Company of Mary Medical Center Torrance. Dmand AI also links Dr. Maher to 1 more group practice or clinic, 1 ambulatory surgery center and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Francis Maher III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maher practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Torrance Surgery Center, LP - HOPD | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Francis Maher III is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Maher's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Maher is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Maher is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, conjunctivitis, dry eye, eyelid inflammation, glaucoma and glaucoma surgery among the conditions Dr. Maher treats.
Ophthalmologists near Dr. Maher
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. John Francis Maher III billed Medicare for 6,399 services in 2024
CMS data shows 6,399 Medicare services from Dr. Maher across 23 procedure codes in 2024, for 1,532 Medicare patients. Medicare paid $609,290 for them.
Dr. Maher's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5,2882024: 5,0554%
- Office and hospital visits
- 2023: 6832024: 6426%
- Surgery
- 2023: 6352024: 55513%
- Imaging
- 2023: 1812024: 14719%
Where Dr. Maher's Medicare services took place, 2024
- In an office6,09795%
- In a facility3025%
Dr. Maher compared with the California median for ophthalmologists, 2024
- Dr. Maher
- California median
- Medicare services
- 6,399vs 1,0795.9 times
- Medicare patients
- 1,532vs 4213.6 times
- Part D claims
- 2,041vs 6183.3 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Maher'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maher and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Francis Maher III treated 1,532 Medicare patients in 2024, average age 78
CMS counts 1,532 Medicare patients who saw Dr. Maher in 2024. The largest group is 75 to 84, with 627 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maher's median patient age at 74, with 56% women.
Dr. Maher's Medicare patients by age, 2024
Dr. Maher's Medicare patients by sex, 2024
- Women90059%
- Men63241%
Chronic conditions among Dr. Maher's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes34%
- Chronic kidney disease28%
- Ischemic heart disease22%
- Osteoporosis20%
- Atrial fibrillation17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maher'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
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Francis Maher III wrote 2,154 Medicare Part D claims in 2024
In 2024, Dr. Maher wrote 2,154 Medicare Part D claims for 578 patients. 54% of them were for generic drugs. CMS names the drug for 2,041 of them, across 19 drugs with 11 or more claims each, at $107,648 in total drug cost. In 2023, CMS named 1,800 claims across 20 drugs.
Dr. Maher's Part D claims by kind of drug, 2024
- Generic1,156 claims54%
- Brand-name998 claims46%
Dr. Maher'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. Maher's Part D claims, 2024
- Antibiotics1%22 of 2,154 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: 1,8002024: 2,04113%
Drugs named by CMS: 19 in 2024, 20 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. John Francis Maher III scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Maher for performance year 2024, reported individually. Dr. Maher accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 578 procedures of cataract surgery by Dr. Maher, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Maher ranks in Medicare procedure volume
- Cataract surgery
- 96th percentile578 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Francis Maher III received $5,639 in industry payments from 2016 to 2025
CMS Open Payments shows 44 general payments to Dr. Maher from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 53% of the total. Alcon Research Ltd paid the most, $2,672.
General payments to Dr. Maher by program year, 2016 to 2025
General payments to Dr. Maher by kind, 2016 to 2025
- Food and beverage$3,01453%
- Speaker and faculty fees$2,62547%
Companies that paid Dr. Maher 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. John Francis Maher III has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Maher.
Awards and honors for Dr. Maher
- Undated
- AAO Fellow
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. John Francis Maher III graduated from Loyola University Chicago Stritch School of Medicine
Dr. Maher graduated from Loyola University Chicago Stritch School of Medicine in 1981. Dr. Maher is a member of AAO and ACS.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. John Francis Maher III accepts plans from 9 insurance carriers
Dr. Maher is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- +1 more carriersWith a free account
Plan types Dr. Maher accepts, by number of carriers
- Medicare7
- PPO6
- HMO4
- POS4
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. John Francis Maher III'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 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)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. John Francis Maher III
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. John Francis Maher III's NPI number?
Dr. John Francis Maher III's NPI number is 1265561211. It was assigned on March 5, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John Francis Maher III?
Dr. John Francis Maher III is an ophthalmologist in Torrance, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. John Francis Maher III practice?
Dr. Maher practices at 23560 Crenshaw Blvd, Torrance, CA 90505. Dr. Maher's primary practice is Torrance Surgery Center, LP - HOPD in Torrance, California. Dmand AI also links Dr. Maher to 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group.
What is Dr. John Francis Maher III's medical license number?
Dr. Maher holds California license G54565.
Which hospitals is Dr. John Francis Maher III affiliated with?
Dr. Maher is affiliated with Providence Little Company of Mary Medical Center Torrance.
Does Dr. John Francis Maher III accept Medicare?
Yes. CMS data shows Dr. Maher billed Medicare for 6,399 services in 2024, and Dr. Maher accepts Medicare assignment.
What is Dr. John Francis Maher III's MIPS score?
Dr. Maher's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. John Francis Maher III see?
CMS counts 1,532 Medicare patients who saw Dr. Maher in 2024, with an average age of 78.
Is Dr. John Francis Maher III board certified?
Yes. Dr. Maher is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. John Francis Maher III bill to Medicare?
In 2024, Dr. Maher's most billed Medicare services were eye exam or test (92014), eye exam or test (92250) and office visit, established patient (99214).
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Where did Dr. John Francis Maher III go to medical school?
Dr. Maher graduated from Loyola University Chicago Stritch School of Medicine in 1981.
What drugs does Dr. John Francis Maher III prescribe most?
In 2024 Medicare Part D data, Dr. Maher's most prescribed drugs by claims were Prednisolone Acetate, Latanoprost and Ofloxacin.
Has Dr. John Francis Maher III received payments from drug or device companies?
CMS Open Payments shows $5,639 in general payments to Dr. Maher from 19 companies from 2016 to 2025. The largest total came from Alcon Research Ltd.
How long has Dr. John Francis Maher III been practicing?
Dr. Maher graduated from medical school in 1981, 45 years ago.
What insurance does Dr. John Francis Maher III accept?
Dr. Maher is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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