Dr. Robert Stephen Grosserode, MD
- Medicare services, 2024
- 564
- Medicare patients, 2024
- 465
- Part D claims, 2024
- 599
- MIPS score, 2024
- 90
- Industry payments
- $26
- Practice address
- 3747 Sunset Lane, Antioch, CA 94509
- Practice phone
- Call (925) 754-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
California Eye Clinic
Surgery Center - Medicare-Certified · Antioch, California
Find Dr. Grosserode'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. Robert Stephen Grosserode is an ophthalmologist in Antioch, California
Dr. Grosserode practices at California Eye Clinic in Antioch, California.
Dr. Grosserode's NPI, 1982748232, was assigned on February 19, 2007. Dr. Grosserode graduated from WashU Medicine in 1980. Dr. Grosserode's California license number on file is G51975.
- NPI
- 1982748232NPI Registry (opens in a new tab)
- NPI enumeration date
- February 19, 2007
- NPI status
- Active
- Practice phone
- (925) 754-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Robert Stephen Grosserode practices at California Eye Clinic in Antioch, California
Dr. Grosserode's primary practice is California Eye Clinic, at 3747 Sunset Lane, Antioch, CA 94509. The practice phone is (925) 754-2300.
- California Eye Clinic3747 Sunset Lane, Antioch, CA 94509Phone(925) 754-2300
Source: Dmand AI Affiliation Data
Dr. Robert Stephen Grosserode is affiliated with 1 site of care and 1 medical group
Dr. Grosserode's primary practice is California Eye Clinic in Antioch, California. Dmand AI also links Dr. Grosserode to 1 medical group, named with a free account. Dr. Grosserode's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Stephen Grosserode's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grosserode practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| California Eye Clinic | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Stephen Grosserode is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Grosserode's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Grosserode is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Grosserode has a license on file in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eye infection or inflammation and eyelid inflammation among the conditions Dr. Grosserode treats.
Ophthalmologists near Dr. Grosserode
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. Robert Stephen Grosserode billed Medicare for 564 services in 2024
CMS data shows 564 Medicare services from Dr. Grosserode across 7 procedure codes in 2024, for 465 Medicare patients. Medicare paid $39,039 for them. Every service was in an office.
Dr. Grosserode's Medicare services by type, 2024
- Tests and treatments520
- Office and hospital visits33
- Imaging11
Dr. Grosserode compared with the California median for ophthalmologists, 2024
- Dr. Grosserode
- California median
- Medicare services
- 564vs 1,07948% below
- Medicare patients
- 465vs 42110% above
- Part D claims
- 564vs 6189% below
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Grosserode'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.
Need commercial claims for Dr. Grosserode?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grosserode and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Stephen Grosserode treated 465 Medicare patients in 2024, average age 74
CMS counts 465 Medicare patients who saw Dr. Grosserode in 2024. The largest group is 65 to 74, with 200 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 47% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Grosserode's median patient age at 78, with 58% women.
Dr. Grosserode's Medicare patients by age, 2024
Dr. Grosserode's Medicare patients by sex, 2024
- Women29463%
- Men17137%
Chronic conditions among Dr. Grosserode's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes43%
- Arthritis41%
- Chronic kidney disease26%
- Anxiety23%
- Mood disorders22%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grosserode'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
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Stephen Grosserode wrote 599 Medicare Part D claims in 2024
In 2024, Dr. Grosserode wrote 599 Medicare Part D claims for 204 patients. 57% of them were for generic drugs. CMS names the drug for 564 of them, across 7 drugs with 11 or more claims each, at $34,536 in total drug cost.
Dr. Grosserode's Part D claims by kind of drug, 2024
- Generic339 claims57%
- Brand-name260 claims43%
Dr. Grosserode'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.
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. Robert Stephen Grosserode scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Grosserode for performance year 2024, reported as part of a group.
Dr. Grosserode's MIPS scores, performance year 2024
- 90of 100Final score
- 93.4of 100Quality
- 40of 100Improvement Activities
- 58of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Robert Stephen Grosserode received $26 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Grosserode from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $26.
Companies that paid Dr. Grosserode the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert Stephen Grosserode graduated from WashU Medicine
Dr. Grosserode graduated from WashU Medicine in 1980.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Robert Stephen Grosserode accepts plans from 7 insurance carriers
Dr. Grosserode is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- Regence Health Plans
- Molina
Plan types Dr. Grosserode accepts, by number of carriers
- Medicare7
- PPO6
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert Stephen Grosserode'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 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 | Clinician Public Reporting: Overall MIPS Performance (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Robert Stephen Grosserode
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. Robert Stephen Grosserode's NPI number?
Dr. Robert Stephen Grosserode's NPI number is 1982748232. It was assigned on February 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Stephen Grosserode?
Dr. Robert Stephen Grosserode is an ophthalmologist in Antioch, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Robert Stephen Grosserode practice?
Dr. Grosserode practices at 3747 Sunset Lane, Antioch, CA 94509. Dr. Grosserode's primary practice is California Eye Clinic in Antioch, California. Dmand AI also links Dr. Grosserode to 1 medical group.
What is Dr. Robert Stephen Grosserode's office phone number?
The practice phone on file for Dr. Grosserode is (925) 754-2300.
What is Dr. Robert Stephen Grosserode's medical license number?
Dr. Grosserode's California license number on file is G51975.
Does Dr. Robert Stephen Grosserode accept Medicare?
Yes. CMS data shows Dr. Grosserode billed Medicare for 564 services in 2024.
What is Dr. Robert Stephen Grosserode's MIPS score?
Dr. Grosserode's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
How many Medicare patients does Dr. Robert Stephen Grosserode see?
CMS counts 465 Medicare patients who saw Dr. Grosserode in 2024, with an average age of 74.
Is Dr. Robert Stephen Grosserode board certified?
Yes. Dr. Grosserode is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Robert Stephen Grosserode bill to Medicare?
In 2024, Dr. Grosserode's most billed Medicare services were eye exam or test (92014), eye exam or test (92012) and eye exam or test (92004).
Show 5 more questionsShow fewer questions
Where did Dr. Robert Stephen Grosserode go to medical school?
Dr. Grosserode graduated from WashU Medicine in 1980.
What drugs does Dr. Robert Stephen Grosserode prescribe most?
In 2024 Medicare Part D data, Dr. Grosserode's most prescribed drugs by claims were Latanoprost, Dorzolamide HCl and Dorzolamide-Timolol.
Has Dr. Robert Stephen Grosserode received payments from drug or device companies?
CMS Open Payments shows $26 in general payments to Dr. Grosserode from 1 company from 2024 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Robert Stephen Grosserode been practicing?
Dr. Grosserode graduated from medical school in 1980, 46 years ago.
What insurance does Dr. Robert Stephen Grosserode accept?
Dr. Grosserode is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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