Dr. Stephen S. Bylsma, MD
- Medicare services, 2024
- 5,191
- Medicare patients, 2024
- 1,918
- Part D claims, 2024
- 2,803
- MIPS score, 2024
- 96
- Hospital affiliations
- 1
- Practice address
- 910 E Stowell Rd, Santa Maria, CA 93454-7001
- Practice phone
- Call (805) 925-2637
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Shepard Eye Center
Eye care practice · Santa Maria, California
Find Dr. Bylsma'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.
Dr. Stephen S. Bylsma is an ophthalmologist in Santa Maria, California
Dr. Bylsma practices at Shepard Eye Center in Santa Maria, California.
Dr. Bylsma's NPI, 1265435325, was assigned on May 23, 2005. Dr. Bylsma graduated from Oregon Health Sciences University School of Medicine in 1989. Dr. Bylsma holds California license G71086.
- NPI
- 1265435325NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224088026
- NPI enumeration date
- May 23, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 925-2637
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen S. Bylsma practices at Shepard Eye Center in Santa Maria, California
Dr. Bylsma's primary practice is Shepard Eye Center, at 910 E Stowell Rd, Santa Maria, CA 93454-7001. The practice phone is (805) 925-2637.
- Shepard Eye Center910 E Stowell Rd, Santa Maria, CA 93454-7001Phone(805) 925-2637
Source: Dmand AI Affiliation Data
Dr. Stephen S. Bylsma is affiliated with 3 sites of care and 2 medical groups
Dr. Bylsma's primary practice is Shepard Eye Center in Santa Maria, California. Dr. Bylsma is also affiliated with Dignity Health - Marian Regional Medical Center. Dmand AI also links Dr. Bylsma to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen S. Bylsma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bylsma practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Shepard Eye Center | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen S. Bylsma is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Bylsma's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Bylsma is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Ophthalmologists near Dr. Bylsma
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. Stephen S. Bylsma billed Medicare for 5,191 services in 2024
CMS data shows 5,191 Medicare services from Dr. Bylsma across 20 procedure codes in 2024, for 1,918 Medicare patients. Medicare paid $455,016 for them.
Dr. Bylsma's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,9162024: 3,24811%
- Office and hospital visits
- 2023: 1,3382024: 1,4659%
- Surgery
- 2023: 3482024: 41218%
- Imaging
- 2023: 452024: 6647%
Where Dr. Bylsma's Medicare services took place, 2024
- In an office4,86494%
- In a facility3276%
Dr. Bylsma compared with the California median for ophthalmologists, 2024
- Dr. Bylsma
- California median
- Medicare services
- 5,191vs 1,0794.8 times
- Medicare patients
- 1,918vs 4214.6 times
- Part D claims
- 2,672vs 6184.3 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Bylsma'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bylsma and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen S. Bylsma treated 1,918 Medicare patients in 2024, average age 76
CMS counts 1,918 Medicare patients who saw Dr. Bylsma in 2024. The largest group is 65 to 74, with 811 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% 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 Dr. Bylsma's median patient age at 71, with 56% women.
Dr. Bylsma's Medicare patients by age, 2024
Dr. Bylsma's Medicare patients by sex, 2024
- Women1,14059%
- Men77841%
Chronic conditions among Dr. Bylsma's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis41%
- Diabetes37%
- Chronic kidney disease26%
- Ischemic heart disease20%
- Mood disorders20%
- Anxiety18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bylsma'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
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen S. Bylsma wrote 2,803 Medicare Part D claims in 2024
In 2024, Dr. Bylsma wrote 2,803 Medicare Part D claims for 796 patients. 47% of them were for generic drugs. CMS names the drug for 2,672 of them, across 29 drugs with 11 or more claims each, at $250,957 in total drug cost. In 2023, CMS named 2,476 claims across 27 drugs.
Dr. Bylsma's Part D claims by kind of drug, 2024
- Generic1,323 claims47%
- Brand-name1,480 claims53%
Dr. Bylsma'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. Bylsma's Part D claims, 2024
- Antibiotics0%13 of 2,803 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: 2,4762024: 2,6728%
Drugs named by CMS: 29 in 2024, 27 in 2023.
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. Stephen S. Bylsma scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Bylsma for performance year 2024, reported as part of a group. Dr. Bylsma accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 320 procedures of cataract surgery by Dr. Bylsma, more than 90% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Bylsma's MIPS scores, performance year 2024
- 96of 100Final score
- 97.9of 100Quality
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Bylsma ranks in Medicare procedure volume
- Cataract surgery
- 90th percentile320 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen S. Bylsma received $10,687 in industry payments from 2016 to 2025
CMS Open Payments shows 162 general payments to Dr. Bylsma from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 77% of the total. Alcon Laboratories Inc paid the most, $3,993.
General payments to Dr. Bylsma by program year, 2016 to 2025
General payments to Dr. Bylsma by kind, 2016 to 2025
- Food and beverage$8,18677%
- Travel and lodging$1,50014%
- Consulting fees$9008%
- Education$821%
- Gifts$190%
Companies that paid Dr. Bylsma the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen S. Bylsma graduated from Oregon Health Sciences University School of Medicine
Dr. Bylsma graduated from Oregon Health Sciences University School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen S. Bylsma'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 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 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)Doctors and Clinicians Utilization Data (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 Dr. Stephen S. Bylsma
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. Stephen S. Bylsma's NPI number?
Dr. Stephen S. Bylsma's NPI number is 1265435325. It was assigned on May 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen S. Bylsma?
Dr. Stephen S. Bylsma is an ophthalmologist in Santa Maria, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Stephen S. Bylsma practice?
Dr. Bylsma practices at 910 E Stowell Rd, Santa Maria, CA 93454-7001. Dr. Bylsma's primary practice is Shepard Eye Center in Santa Maria, California. Dmand AI also links Dr. Bylsma to 2 medical groups and 1 group practice or clinic.
What is Dr. Stephen S. Bylsma's office phone number?
The practice phone on file for Dr. Bylsma is (805) 925-2637.
What is Dr. Stephen S. Bylsma's medical license number?
Dr. Bylsma holds California license G71086.
Which hospitals is Dr. Stephen S. Bylsma affiliated with?
Dr. Bylsma is affiliated with Dignity Health - Marian Regional Medical Center.
Does Dr. Stephen S. Bylsma accept Medicare?
Yes. CMS data shows Dr. Bylsma billed Medicare for 5,191 services in 2024, and Dr. Bylsma accepts Medicare assignment.
What is Dr. Stephen S. Bylsma's MIPS score?
Dr. Bylsma's MIPS final score for performance year 2024 is 96 out of 100, reported as part of a group.
How many Medicare patients does Dr. Stephen S. Bylsma see?
CMS counts 1,918 Medicare patients who saw Dr. Bylsma in 2024, with an average age of 76.
What services does Dr. Stephen S. Bylsma bill to Medicare?
In 2024, Dr. Bylsma's most billed Medicare services were office visit, established patient (99213), eye exam or test (92133) and eye exam or test (92012).
Show 4 more questionsShow fewer questions
Where did Dr. Stephen S. Bylsma go to medical school?
Dr. Bylsma graduated from Oregon Health Sciences University School of Medicine in 1989.
What drugs does Dr. Stephen S. Bylsma prescribe most?
In 2024 Medicare Part D data, Dr. Bylsma's most prescribed drugs by claims were Latanoprost, Neomycin-Polymyxin-Dexameth and Prednisolone Acetate.
Has Dr. Stephen S. Bylsma received payments from drug or device companies?
CMS Open Payments shows $10,687 in general payments to Dr. Bylsma from 26 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Stephen S. Bylsma been practicing?
Dr. Bylsma graduated from medical school in 1989, 37 years ago.
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