Stephen Robert Keller, OD
- Medicare patients, 2024
- 159
- Part D claims, 2024
- 76
- Industry payments
- $301
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 36921 Cook St, Palm Desert, CA 92211
- Practice phone
- Call (760) 341-7373
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cornerstone Optometry
Eye care practice · Palm Desert, California
Find Stephen Keller'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.
Stephen Robert Keller is an optometrist in Palm Desert, California
Stephen Keller practices at Cornerstone Optometry in Palm Desert, California.
Stephen Keller's NPI, 1770550345, was assigned on March 2, 2006. Stephen Keller graduated from University of California - School of Optometry in 1993. Stephen Keller holds California license OPT10085T.
- NPI
- 1770550345NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608830302
- NPI enumeration date
- March 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (760) 341-7373
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Stephen Robert Keller practices at Cornerstone Optometry in Palm Desert, California
Stephen Keller's primary practice is Cornerstone Optometry, at 36921 Cook St, Palm Desert, CA 92211. The practice phone is (760) 341-7373.
- Cornerstone Optometry36921 Cook St, Palm Desert, CA 92211Phone(760) 341-7373
Source: Dmand AI Affiliation Data
Stephen Robert Keller is affiliated with 1 site of care and 1 medical group
Stephen Keller's primary practice is Cornerstone Optometry in Palm Desert, California. Dmand AI also links Stephen Keller to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Stephen Robert Keller's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Stephen Keller practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cornerstone Optometry | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Stephen Robert Keller is one of 7,206 optometrists in California
Optometrist is Stephen Keller's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Stephen Keller is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Stephen Keller
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
Stephen Robert Keller treated 159 Medicare patients in 2024, average age 72
CMS counts 159 Medicare patients who saw Stephen Keller in 2024. The largest group is 65 to 74, with 79 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 35% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Stephen Keller's median patient age at 71, with 65% women.
Stephen Keller's Medicare patients by age, 2024
Stephen Keller's Medicare patients by sex, 2024
- Women9358%
- Men6642%
Chronic conditions among Stephen Keller's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis55%
- Diabetes32%
- Mood disorders25%
- Anxiety24%
- Chronic kidney disease21%
- Depression21%
Share of Medicare patients with each condition. A patient can have several.
Stephen Keller's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Stephen Robert Keller wrote 76 Medicare Part D claims in 2024
In 2024, Stephen Keller wrote 76 Medicare Part D claims for 28 patients. 80% of them were for generic drugs.
Stephen Keller's Part D claims by kind of drug, 2024
- Generic61 claims80%
- Brand-name15 claims20%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Stephen Robert Keller takes part in Medicare
Stephen Keller 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)
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Stephen Robert Keller received $301 in industry payments in 2025
CMS Open Payments shows 3 general payments to Stephen Keller from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Sight Sciences, Inc. paid the most, $126.
Companies that paid Stephen Keller the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Stephen Robert Keller graduated from University of California - School of Optometry
Stephen Keller graduated from University of California - School of Optometry in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Stephen Robert Keller'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 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) |
| 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 Stephen Robert Keller
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Stephen Robert Keller's NPI number?
Stephen Robert Keller's NPI number is 1770550345. It was assigned on March 2, 2006, and it is active in the NPI Registry.
What does Stephen Robert Keller specialize in?
Stephen Robert Keller is an optometrist in Palm Desert, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Stephen Robert Keller practice?
Stephen Keller practices at 36921 Cook St, Palm Desert, CA 92211. Stephen Keller's primary practice is Cornerstone Optometry in Palm Desert, California. Dmand AI also links Stephen Keller to 1 medical group.
What is Stephen Robert Keller's office phone number?
The practice phone on file for Stephen Keller is (760) 341-7373.
What is Stephen Robert Keller's medical license number?
Stephen Keller holds California license OPT10085T.
Does Stephen Robert Keller accept Medicare?
Yes. CMS lists Stephen Keller as accepting Medicare assignment.
How many Medicare patients does Stephen Robert Keller see?
CMS counts 159 Medicare patients who saw Stephen Keller in 2024, with an average age of 72.
Where did Stephen Robert Keller go to medical school?
Stephen Keller graduated from University of California - School of Optometry in 1993.
Has Stephen Robert Keller received payments from drug or device companies?
CMS Open Payments shows $301 in general payments to Stephen Keller from 3 companies from 2025 to 2025. The largest total came from Sight Sciences, Inc.
How long has Stephen Robert Keller been practicing?
Stephen Keller graduated from medical school in 1993, 33 years ago.
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