Dr. Joseph Decker, MD
- Medicare services, 2024
- 1,175
- Medicare patients, 2024
- 317
- Part D claims, 2024
- 748
- MIPS score, 2024
- 93
- Industry payments
- $2,728
- Practice address
- 123 Di Salvo Ave, San Jose, CA 95128
- Practice phone
- Call (408) 279-4664
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Jose Eye Institute Medical Corporation
San Jose, California
Find Dr. Decker's professional email, personal email and mobile number
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Dr. Joseph Decker is an ophthalmologist in San Jose, California
Dr. Decker practices at San Jose Eye Institute Medical Corporation in San Jose, California.
Dr. Decker's NPI, 1871546010, was assigned on May 18, 2006. Dr. Decker graduated from University of Illinois College of Medicine - Chicago in 1962. Dr. Decker holds California license G11266.
- NPI
- 1871546010NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496776775
- NPI enumeration date
- May 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 279-4664
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 90
- Medical school graduation
- 1962
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph Decker practices at San Jose Eye Institute Medical Corporation in San Jose, California
Dr. Decker's primary practice is San Jose Eye Institute Medical Corporation, at 123 Di Salvo Ave, San Jose, CA 95128 in Santa Clara County. The practice phone is (408) 279-4664.
- San Jose Eye Institute Medical Corporation123 Di Salvo Ave, San Jose, CA 95128 · Santa Clara CountyPhone(408) 279-4664
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joseph Decker is affiliated with 2 sites of care and 1 medical group
Dr. Decker's primary practice is San Jose Eye Institute Medical Corporation in San Jose, California. Dmand AI also links Dr. Decker to 1 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. Joseph Decker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Decker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Jose Eye Institute Medical Corporation | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joseph Decker is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Decker's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Decker is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Decker is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, conjunctivitis, dry eye, eyelid inflammation, glaucoma, glaucoma surgery and hereditary corneal conditions among the conditions Dr. Decker treats.
Ophthalmologists near Dr. Decker
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. Joseph Decker billed Medicare for 1,175 services in 2024
CMS data shows 1,175 Medicare services from Dr. Decker across 9 procedure codes in 2024, for 317 Medicare patients. Medicare paid $79,647 for them. Every service was in an office.
Dr. Decker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,0112024: 1,016No change
- Office and hospital visits
- 2023: 2792024: 15943%
- Imaging
- 2023: 152024: 0100%
- Lab and pathology
- 2023: 1062024: 0100%
Dr. Decker compared with the California median for ophthalmologists, 2024
- Dr. Decker
- California median
- Medicare services
- 1,175vs 1,0799% above
- Medicare patients
- 317vs 42125% below
- Part D claims
- 669vs 6188% above
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Decker'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. Decker and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph Decker treated 317 Medicare patients in 2024, average age 78
CMS counts 317 Medicare patients who saw Dr. Decker in 2024. The largest group is 75 to 84, with 131 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Decker's median patient age at 69, with 50% women.
Dr. Decker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Decker's Medicare patients by sex, 2024
- Women19261%
- Men12539%
Chronic conditions among Dr. Decker's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Diabetes34%
- Arthritis29%
- Ischemic heart disease22%
- Atrial fibrillation19%
- Osteoporosis19%
- Cancer17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Decker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph Decker wrote 748 Medicare Part D claims in 2024
In 2024, Dr. Decker wrote 748 Medicare Part D claims for 182 patients. 28% of them were for generic drugs. CMS names the drug for 669 of them, across 15 drugs with 11 or more claims each, at $241,004 in total drug cost. In 2023, CMS named 678 claims across 12 drugs.
Dr. Decker's Part D claims by kind of drug, 2024
- Generic212 claims28%
- Brand-name536 claims72%
Dr. Decker'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. Decker's Part D claims, 2024
- Antibiotics1%11 of 748 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: 6782024: 6691%
Drugs named by CMS: 15 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. Joseph Decker scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Decker for performance year 2024, reported as part of a group. Dr. Decker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Decker's MIPS scores, performance year 2024
- 93of 100Final score
- 96.7of 100Quality
- 40of 100Improvement Activities
- 80of 100Cost
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. Joseph Decker received $2,728 in industry payments from 2016 to 2025
CMS Open Payments shows 100 general payments to Dr. Decker from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $461.
General payments to Dr. Decker by program year, 2016 to 2025
General payments to Dr. Decker by kind, 2016 to 2025
- Food and beverage$2,717100%
- Education$110%
Companies that paid Dr. Decker 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. Joseph Decker graduated from University of Illinois College of Medicine - Chicago
Dr. Decker graduated from University of Illinois College of Medicine - Chicago in 1962.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Joseph Decker accepts plans from 16 insurance carriers
Dr. Decker is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Regence Health Plans
- +8 more carriersWith a free account
Plan types Dr. Decker accepts, by number of carriers
- PPO10
- Medicare9
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Joseph Decker'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) |
| 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. Joseph Decker
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. Joseph Decker's NPI number?
Dr. Joseph Decker's NPI number is 1871546010. It was assigned on May 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph Decker?
Dr. Joseph Decker is an ophthalmologist in San Jose, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Joseph Decker practice?
Dr. Decker practices at 123 Di Salvo Ave, San Jose, CA 95128. Dr. Decker's primary practice is San Jose Eye Institute Medical Corporation in San Jose, California. Dmand AI also links Dr. Decker to 1 group practice or clinic and 1 medical group.
What is Dr. Joseph Decker's office phone number?
The practice phone on file for Dr. Decker is (408) 279-4664.
What is Dr. Joseph Decker's medical license number?
Dr. Decker holds California license G11266.
Does Dr. Joseph Decker accept Medicare?
Yes. CMS data shows Dr. Decker billed Medicare for 1,175 services in 2024, and Dr. Decker accepts Medicare assignment.
What is Dr. Joseph Decker's MIPS score?
Dr. Decker's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Joseph Decker see?
CMS counts 317 Medicare patients who saw Dr. Decker in 2024, with an average age of 78.
Is Dr. Joseph Decker board certified?
Yes. Dr. Decker is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Joseph Decker bill to Medicare?
In 2024, Dr. Decker's most billed Medicare services were eye exam or test (92014), eye exam or test (92134) and office visit, established patient (99214).
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Where did Dr. Joseph Decker go to medical school?
Dr. Decker graduated from University of Illinois College of Medicine - Chicago in 1962.
What drugs does Dr. Joseph Decker prescribe most?
In 2024 Medicare Part D data, Dr. Decker's most prescribed drugs by claims were Latanoprost, Restasis and Cyclosporine.
Has Dr. Joseph Decker received payments from drug or device companies?
CMS Open Payments shows $2,728 in general payments to Dr. Decker from 17 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Joseph Decker been practicing?
Dr. Decker graduated from medical school in 1962, 64 years ago.
What insurance does Dr. Joseph Decker accept?
Dr. Decker is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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