Dr. Brian Alexander Lenser, MD
- Medicare services, 2024
- 2,111
- Medicare patients, 2024
- 648
- Part D claims, 2024
- 2,969
- MIPS score, 2024
- 75
- Industry payments
- $1,826
- Practice address
- 1300 Mable Avenue , Suite 1, Modesto, CA 95355
- Practice phone
- Call (209) 571-1633
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Valley Surgery Center at Modesto
Surgery Center - Medicare-Certified · Modesto, California
Find Dr. Lenser's professional email, personal email and mobile number
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Dr. Brian Alexander Lenser is an ophthalmologist in Modesto, California
Dr. Lenser practices at Valley Surgery Center at Modesto in Modesto, California.
Dr. Lenser's NPI, 1275504524, was assigned on January 26, 2006. Dr. Lenser graduated from Loma Linda University School Of Medicine in 1991. Dr. Lenser holds California license G75079.
- NPI
- 1275504524NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608935259
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 571-1633
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Alexander Lenser practices at Valley Surgery Center at Modesto in Modesto, California
Dr. Lenser's primary practice is Valley Surgery Center at Modesto, at 1300 Mable Avenue , Suite 1, Modesto, CA 95355. The practice phone is (209) 571-1633.
- Valley Surgery Center at Modesto1300 Mable Avenue , Suite 1, Modesto, CA 95355Phone(209) 571-1633
Source: Dmand AI Affiliation Data
Dr. Brian Alexander Lenser is affiliated with 1 site of care
Dr. Lenser's primary practice is Valley Surgery Center at Modesto in Modesto, California. Dr. Lenser's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian Alexander Lenser's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lenser practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valley Surgery Center at Modesto | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian Alexander Lenser is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Lenser's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Lenser is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Lenser 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, cold sores or genital herpes, conjunctivitis, dry eye, eyelid inflammation and glaucoma among the conditions Dr. Lenser treats.
Ophthalmologists near Dr. Lenser
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. Brian Alexander Lenser billed Medicare for 2,111 services in 2024
CMS data shows 2,111 Medicare services from Dr. Lenser across 13 procedure codes in 2024, for 648 Medicare patients. Medicare paid $249,539 for them.
Dr. Lenser's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,0602024: 1,68918%
- Surgery
- 2023: 4782024: 42212%
Where Dr. Lenser's Medicare services took place, 2024
- In an office1,82686%
- In a facility28514%
Dr. Lenser compared with the California median for ophthalmologists, 2024
- Dr. Lenser
- California median
- Medicare services
- 2,111vs 1,07996% above
- Medicare patients
- 648vs 42154% above
- Part D claims
- 2,892vs 6184.7 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Lenser'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. Lenser and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian Alexander Lenser treated 648 Medicare patients in 2024, average age 76
CMS counts 648 Medicare patients who saw Dr. Lenser in 2024. The largest group is 65 to 74, with 299 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lenser's median patient age at 75, with 59% women.
Dr. Lenser's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lenser's Medicare patients by sex, 2024
- Women36256%
- Men28644%
Chronic conditions among Dr. Lenser's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis42%
- Diabetes35%
- Chronic kidney disease26%
- Ischemic heart disease20%
- Atrial fibrillation18%
- Anxiety17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lenser's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Alexander Lenser wrote 2,969 Medicare Part D claims in 2024
In 2024, Dr. Lenser wrote 2,969 Medicare Part D claims for 643 patients. 53% of them were for generic drugs. CMS names the drug for 2,892 of them, across 16 drugs with 11 or more claims each, at $157,114 in total drug cost. In 2023, CMS named 2,819 claims across 18 drugs.
Dr. Lenser's Part D claims by kind of drug, 2024
- Generic1,579 claims53%
- Brand-name1,390 claims47%
Dr. Lenser'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. Lenser's Part D claims, 2024
- Antibiotics1%17 of 2,969 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: 2,8192024: 2,8923%
Drugs named by CMS: 16 in 2024, 18 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. Brian Alexander Lenser 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. Lenser for performance year 2024, reported individually. Dr. Lenser accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 1,092 procedures of cataract surgery by Dr. Lenser, more than 99% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Lenser ranks in Medicare procedure volume
- Cataract surgery
- 99th percentile1,092 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. Brian Alexander Lenser received $1,826 in industry payments from 2016 to 2025
CMS Open Payments shows 60 general payments to Dr. Lenser from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Aerie Pharmaceuticals, Inc. paid the most, $400.
General payments to Dr. Lenser by program year, 2016 to 2025
General payments to Dr. Lenser by kind, 2016 to 2025
- Food and beverage$1,76997%
- Education$382%
- Gifts$191%
Companies that paid Dr. Lenser 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. Brian Alexander Lenser has 1 award and honors on record
Dmand AI lists 1 award for Dr. Lenser.
Awards and honors for Dr. Lenser
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Brian Alexander Lenser graduated from Loma Linda University School Of Medicine
Dr. Lenser graduated from Loma Linda University School Of Medicine in 1991. Dr. Lenser is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Brian Alexander Lenser accepts plans from 3 insurance carriers
Dr. Lenser is in network with 3 carriers, including Aetna, Humana and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Humana
- CMS Medicare
Plan types Dr. Lenser accepts, by number of carriers
- Medicare3
- HMO2
- PPO2
- EPO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Brian Alexander Lenser'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 | 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. Brian Alexander Lenser
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. Brian Alexander Lenser's NPI number?
Dr. Brian Alexander Lenser's NPI number is 1275504524. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Alexander Lenser?
Dr. Brian Alexander Lenser is an ophthalmologist in Modesto, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Brian Alexander Lenser practice?
Dr. Lenser practices at 1300 Mable Avenue , Suite 1, Modesto, CA 95355. Dr. Lenser's primary practice is Valley Surgery Center at Modesto in Modesto, California.
What is Dr. Brian Alexander Lenser's office phone number?
The practice phone on file for Dr. Lenser is (209) 571-1633.
What is Dr. Brian Alexander Lenser's medical license number?
Dr. Lenser holds California license G75079.
Does Dr. Brian Alexander Lenser accept Medicare?
Yes. CMS data shows Dr. Lenser billed Medicare for 2,111 services in 2024, and Dr. Lenser accepts Medicare assignment.
What is Dr. Brian Alexander Lenser's MIPS score?
Dr. Lenser's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Brian Alexander Lenser see?
CMS counts 648 Medicare patients who saw Dr. Lenser in 2024, with an average age of 76.
Is Dr. Brian Alexander Lenser board certified?
Yes. Dr. Lenser is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Brian Alexander Lenser bill to Medicare?
In 2024, Dr. Lenser's most billed Medicare services were eye exam or test (92014), eye exam or test (92012) and eye exam or test (92136).
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Where did Dr. Brian Alexander Lenser go to medical school?
Dr. Lenser graduated from Loma Linda University School Of Medicine in 1991.
What drugs does Dr. Brian Alexander Lenser prescribe most?
In 2024 Medicare Part D data, Dr. Lenser's most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Dorzolamide-Timolol.
Has Dr. Brian Alexander Lenser received payments from drug or device companies?
CMS Open Payments shows $1,826 in general payments to Dr. Lenser from 17 companies from 2016 to 2025. The largest total came from Aerie Pharmaceuticals, Inc.
How long has Dr. Brian Alexander Lenser been practicing?
Dr. Lenser graduated from medical school in 1991, 35 years ago.
What insurance does Dr. Brian Alexander Lenser accept?
Dr. Lenser is in network with 3 carriers, including Aetna, Humana and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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