Chris H. Iwata, OD
- Medicare patients, 2024
- 836
- Part D claims, 2024
- 232
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1000 Greenley Road, Sonora, CA 95370
- Practice phone
- Call (209) 536-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Chris Iwata's professional email, personal email and mobile number
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Chris H. Iwata is an optometrist in Sonora, California
Chris Iwata practices at Adventist Health Sonora in Sonora, California, part of Adventist Health.
Chris Iwata's NPI, 1851371520, was assigned on January 19, 2006. Chris Iwata graduated from University of California - School of Optometry in 1974. Chris Iwata holds California license 5700T.
- NPI
- 1851371520NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577674324
- NPI enumeration date
- January 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 536-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Chris H. Iwata practices at Adventist Health Sonora in Sonora, California
Chris Iwata's primary practice is Adventist Health Sonora, at 1000 Greenley Road, Sonora, CA 95370 in Tuolumne County. The practice phone is (209) 536-5000.
- Adventist Health Sonora1000 Greenley Road, Sonora, CA 95370 · Tuolumne CountyPhone(209) 536-5000
Source: Dmand AI Affiliation Data
Chris H. Iwata is affiliated with 1 site of care
Chris Iwata's primary practice is Adventist Health Sonora in Sonora, California, part of Adventist Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Chris H. Iwata's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Chris Iwata practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Sonora | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Chris H. Iwata is one of 7,206 optometrists in California
Optometrist is Chris Iwata's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Chris Iwata is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Chris Iwata
Counts of optometrists 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
Chris H. Iwata treated 836 Medicare patients in 2024, average age 76
CMS counts 836 Medicare patients who saw Chris Iwata in 2024. The largest group is 75 to 84, with 378 patients. 74% of them have high cholesterol, and 65% have high blood pressure. 4% are also on Medicaid. Their average risk score is 0.75, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Chris Iwata's median patient age at 78, with 51% women.
Chris Iwata's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chris Iwata's Medicare patients by sex, 2024
- Women50961%
- Men32739%
Chronic conditions among Chris Iwata's Medicare patients, 2024
- High cholesterol74%
- High blood pressure65%
- Arthritis37%
- Ischemic heart disease18%
- Diabetes16%
- Anxiety14%
- Atrial fibrillation14%
- Osteoporosis14%
Share of Medicare patients with each condition. A patient can have several.
Chris Iwata's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Chris H. Iwata wrote 232 Medicare Part D claims in 2024
In 2024, Chris Iwata wrote 232 Medicare Part D claims for 53 patients. 66% of them were for generic drugs.
Chris Iwata's Part D claims by kind of drug, 2024
- Generic153 claims66%
- Brand-name79 claims34%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Chris H. Iwata scored 0 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 0 out of 100 for Chris Iwata for performance year 2024, reported individually. Chris Iwata accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Chris Iwata's MIPS scores, performance year 2024
- 0of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 0of 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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Chris H. Iwata graduated from University of California - School of Optometry
Chris Iwata graduated from University of California - School of Optometry in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Chris H. Iwata'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 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 (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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Chris H. Iwata
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Chris H. Iwata's NPI number?
Chris H. Iwata's NPI number is 1851371520. It was assigned on January 19, 2006, and it is active in the NPI Registry.
What does Chris H. Iwata specialize in?
Chris H. Iwata is an optometrist in Sonora, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Chris H. Iwata practice?
Chris Iwata practices at 1000 Greenley Road, Sonora, CA 95370. Chris Iwata's primary practice is Adventist Health Sonora in Sonora, California, part of Adventist Health.
What is Chris H. Iwata's office phone number?
The practice phone on file for Chris Iwata is (209) 536-5000.
What is Chris H. Iwata's medical license number?
Chris Iwata holds California license 5700T.
Which hospitals is Chris H. Iwata affiliated with?
Chris Iwata practices at Adventist Health Sonora in Sonora, California.
Does Chris H. Iwata accept Medicare?
Yes. CMS lists Chris Iwata as accepting Medicare assignment.
What is Chris H. Iwata's MIPS score?
Chris Iwata's MIPS final score for performance year 2024 is 0 out of 100, reported individually.
How many Medicare patients does Chris H. Iwata see?
CMS counts 836 Medicare patients who saw Chris Iwata in 2024, with an average age of 76.
Where did Chris H. Iwata go to medical school?
Chris Iwata graduated from University of California - School of Optometry in 1974.
How long has Chris H. Iwata been practicing?
Chris Iwata graduated from medical school in 1974, 52 years ago.
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