Dieter Steimann, OD
- Medicare patients, 2024
- 43
- Industry payments
- $64
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 2501 E. Chapman Ave. Ste. 102, Orange, CA 92869
- Practice phone
- Call (714) 628-3305
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St. Joseph Heritage Orange - Chapman Mammogram Screening
Mammography / Breast Imaging Center · Orange, California
Find Dieter Steimann's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dieter Steimann is an optometrist in Orange, California
Dieter Steimann practices at St. Joseph Heritage Orange - Chapman Mammogram Screening in Orange, California.
Dieter Steimann's NPI, 1538213046, was assigned on January 22, 2007. Dieter Steimann graduated from Southern California College of Optometry in 1978. Dieter Steimann holds California license 6561T.
- NPI
- 1538213046NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123266814
- NPI enumeration date
- January 22, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 628-3305
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dieter Steimann practices at St. Joseph Heritage Orange - Chapman Mammogram Screening in Orange, California
Dieter Steimann's primary practice is St. Joseph Heritage Orange - Chapman Mammogram Screening, at 2501 E. Chapman Ave. Ste. 102, Orange, CA 92869. The practice phone is (714) 628-3305.
- St. Joseph Heritage Orange - Chapman Mammogram Screening2501 E. Chapman Ave. Ste. 102, Orange, CA 92869Phone(714) 628-3305
Source: Dmand AI Affiliation Data
Dieter Steimann is affiliated with 1 site of care
Dieter Steimann's primary practice is St. Joseph Heritage Orange - Chapman Mammogram Screening in Orange, California.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dieter Steimann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dieter Steimann practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Joseph Heritage Orange - Chapman Mammogram Screening | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dieter Steimann is one of 7,206 optometrists in California
Optometrist is Dieter Steimann's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Dieter Steimann is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Dieter Steimann
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
Dieter Steimann treated 43 Medicare patients in 2024, average age 74
CMS counts 43 Medicare patients who saw Dieter Steimann in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dieter Steimann's median patient age at 78, with 71% women.
Dieter Steimann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dieter Steimann's Medicare patients by sex, 2024
- Women2865%
- Men1535%
Chronic conditions among Dieter Steimann's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis40%
- Osteoporosis33%
- Diabetes26%
Share of Medicare patients with each condition. A patient can have several.
Dieter Steimann'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
- Women71%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dieter Steimann takes part in Medicare
Dieter Steimann accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dieter Steimann received $64 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dieter Steimann from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $64.
Companies that paid Dieter Steimann the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dieter Steimann graduated from Southern California College of Optometry
Dieter Steimann graduated from Southern California College of Optometry in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dieter Steimann'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| 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 Dieter Steimann
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dieter Steimann's NPI number?
Dieter Steimann's NPI number is 1538213046. It was assigned on January 22, 2007, and it is active in the NPI Registry.
What does Dieter Steimann specialize in?
Dieter Steimann is an optometrist in Orange, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Dieter Steimann practice?
Dieter Steimann practices at 2501 E. Chapman Ave. Ste. 102, Orange, CA 92869. Dieter Steimann's primary practice is St. Joseph Heritage Orange - Chapman Mammogram Screening in Orange, California.
What is Dieter Steimann's office phone number?
The practice phone on file for Dieter Steimann is (714) 628-3305.
What is Dieter Steimann's medical license number?
Dieter Steimann holds California license 6561T.
Does Dieter Steimann accept Medicare?
Yes. CMS lists Dieter Steimann as accepting Medicare assignment.
How many Medicare patients does Dieter Steimann see?
CMS counts 43 Medicare patients who saw Dieter Steimann in 2024, with an average age of 74.
Where did Dieter Steimann go to medical school?
Dieter Steimann graduated from Southern California College of Optometry in 1978.
Has Dieter Steimann received payments from drug or device companies?
CMS Open Payments shows $64 in general payments to Dieter Steimann from 1 company from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dieter Steimann been practicing?
Dieter Steimann graduated from medical school in 1978, 48 years ago.
Selling to optometrist practices?
See optometrists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card