Ray A. Lassen, OD
- Medicare patients, 2024
- 87
- Part D claims, 2024
- 127
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 211 St Francis Dr, Cape Girardeau, MO 63703
- Practice phone
- Call (573) 331-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Ray Lassen'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.
Ray A. Lassen is an optometrist in Cape Girardeau, Missouri
Ray Lassen practices at Saint Francis Medical Center in Cape Girardeau, Missouri, part of Saint Francis Healthcare System.
Ray Lassen's NPI, 1275523680, was assigned on October 26, 2005. Ray Lassen graduated from University of Missouri St Louis - School of Optometry in 1987. Ray Lassen holds Missouri license T02728.
- NPI
- 1275523680NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426261652
- NPI enumeration date
- October 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (573) 331-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ray A. Lassen practices at Saint Francis Medical Center in Cape Girardeau, Missouri
Ray Lassen's primary practice is Saint Francis Medical Center, at 211 St Francis Dr, Cape Girardeau, MO 63703 in Cape Girardeau County. The practice phone is (573) 331-3000.
- Saint Francis Medical Center211 St Francis Dr, Cape Girardeau, MO 63703 · Cape Girardeau CountyPhone(573) 331-3000
Source: Dmand AI Affiliation Data
Ray A. Lassen is affiliated with 1 site of care
Ray Lassen's primary practice is Saint Francis Medical Center in Cape Girardeau, Missouri, part of Saint Francis Healthcare System.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ray A. Lassen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ray Lassen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Francis Medical Center | 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 Saint Francis Healthcare System and 6.2K+ hospitals, with verified contacts in the same login.
Ray A. Lassen is one of 866 optometrists in Missouri
Optometrist is Ray Lassen's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Ray Lassen is licensed in Missouri.
Specialties and state licenses
- Optometrist, MissouriPrimary
Optometrists near Ray Lassen
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
Ray A. Lassen treated 87 Medicare patients in 2024, average age 72
CMS counts 87 Medicare patients who saw Ray Lassen in 2024. The largest group is 65 to 74, with 42 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Ray Lassen's median patient age at 72, with 57% women.
Ray Lassen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Ray Lassen's Medicare patients by sex, 2024
- Women4855%
- Men3945%
Chronic conditions among Ray Lassen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis47%
- Anxiety33%
- COPD32%
- Diabetes31%
- Depression29%
- Mood disorders29%
Share of Medicare patients with each condition. A patient can have several.
Ray Lassen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ray A. Lassen wrote 127 Medicare Part D claims in 2024
In 2024, Ray Lassen wrote 127 Medicare Part D claims for 33 patients. 84% of them were for generic drugs.
Ray Lassen's Part D claims by kind of drug, 2024
- Generic107 claims84%
- Brand-name20 claims16%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Ray A. Lassen takes part in Medicare
Ray Lassen 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)
For MedTech and pharma teams
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Ray A. Lassen graduated from University of Missouri St Louis - School of Optometry
Ray Lassen graduated from University of Missouri St Louis - School of Optometry in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Ray A. Lassen'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) |
| 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 Ray A. Lassen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ray A. Lassen's NPI number?
Ray A. Lassen's NPI number is 1275523680. It was assigned on October 26, 2005, and it is active in the NPI Registry.
What does Ray A. Lassen specialize in?
Ray A. Lassen is an optometrist in Cape Girardeau, Missouri. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Ray A. Lassen practice?
Ray Lassen practices at 211 St Francis Dr, Cape Girardeau, MO 63703. Ray Lassen's primary practice is Saint Francis Medical Center in Cape Girardeau, Missouri, part of Saint Francis Healthcare System.
What is Ray A. Lassen's office phone number?
The practice phone on file for Ray Lassen is (573) 331-3000.
What is Ray A. Lassen's medical license number?
Ray Lassen holds Missouri license T02728.
Which hospitals is Ray A. Lassen affiliated with?
Ray Lassen practices at Saint Francis Medical Center in Cape Girardeau, Missouri.
Does Ray A. Lassen accept Medicare?
Yes. CMS lists Ray Lassen as accepting Medicare assignment.
How many Medicare patients does Ray A. Lassen see?
CMS counts 87 Medicare patients who saw Ray Lassen in 2024, with an average age of 72.
Where did Ray A. Lassen go to medical school?
Ray Lassen graduated from University of Missouri St Louis - School of Optometry in 1987.
How long has Ray A. Lassen been practicing?
Ray Lassen graduated from medical school in 1987, 39 years ago.
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