Dr. Joseph Decker, MD

  • San Jose, CA
  • Ophthalmologist
NPI1871546010PAC ID5496776775
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
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Personal email
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Mobile number
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Social profiles

Primary practice

San Jose Eye Institute Medical Corporation

San Jose, California

See all 3 affiliations

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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 and contact details
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
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Mobile number
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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 Corporation
    123 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.

San Jose Eye Institute Medical CorporationSan Jose, CaliforniaPrimary
1 group practice or clinicName with a free account1 medical groupName with a free account
See all 3 affiliations for Dr. Decker

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.

EHR by site
SiteEHR vendor and product
San Jose Eye Institute Medical CorporationAvailable with a free account
+1 more site and 1 medical groupAvailable 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, CaliforniaPrimaryLicense G11266 · 1965 to 2026 · taxonomy 207W00000X

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.

Medicare services, 20241,175
Medicare patients317
Paid by Medicare$79,647
Procedure codes9

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.

See all procedures by Dr. Decker

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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.

Medicare patients, 2024317
Average age78
Average risk score1.07
Also on Medicaid9%

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

  1. High cholesterol75%
  2. High blood pressure73%
  3. Diabetes34%
  4. Arthritis29%
  5. Ischemic heart disease22%
  6. Atrial fibrillation19%
  7. Osteoporosis19%
  8. 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.

Part D claims, 2024748
Drugs named by CMS15
Total drug cost$241,004
Part D patients182

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.

See all prescribing by Dr. Decker

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

$2.7Kin total
  • 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.

See all payments to Dr. Decker

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.

  1. Medical schoolUniversity of Illinois College of Medicine - Chicago
  2. Board certified in ophthalmologyAmerican Board of 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

  1. PPO10
  2. Medicare9
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Joseph Decker'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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. 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).

Show 5 more questionsShow fewer questions

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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