Dr. Robert S. Herrick, MD
- Medicare services, 2019
- 131
- Part D claims, 2023
- 156
- Industry payments
- $19
- Affiliated sites
- 1
- Insurance carriers
- 13
- Practice address
- 882 W Rialto Ave, Rialto, CA 92376
- Practice phone
- Call (909) 820-4051
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Robert S. Herrick M.D. Inc
Physician office · Rialto, California
Find Dr. Herrick'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 S. Herrick is an ophthalmologist in West Covina, California
Dr. Herrick practices at Robert S. Herrick M.D. Inc in Rialto, California.
Dr. Herrick's NPI, 1902809817, was assigned on May 24, 2005. Dr. Herrick graduated from OU College of Medicine in 1960. Dr. Herrick's California license number on file is C24395.
- NPI
- 1902809817NPI Registry (opens in a new tab)
- NPI enumeration date
- May 24, 2005
- NPI status
- Active
- Practice phone
- (909) 820-4051
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 92
- Medical school graduation
- 1960
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Robert S. Herrick practices in Rialto and West Covina
Dr. Herrick's primary practice is Robert S. Herrick M.D. Inc, at 882 W Rialto Ave, Rialto, CA 92376. The practice phone is (909) 820-4051. The NPI Registry lists Dr. Herrick's practice address as 2211 E Garvey N Ave, West Covina, CA 91791.
- Robert S. Herrick M.D. IncPrimary882 W Rialto Ave, Rialto, CA 92376Phone(909) 820-4051
- NPI Registry address2211 E Garvey N Ave, West Covina, CA 91791 · Los Angeles CountyPhone(909) 820-4051
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Robert S. Herrick is affiliated with 1 site of care
Dr. Herrick's primary practice is Robert S. Herrick M.D. Inc in Rialto, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert S. Herrick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Herrick practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Robert S. Herrick M.D. Inc | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert S. Herrick is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Herrick's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Herrick is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Herrick's licenses on file in 5 states: California, Tennessee, New Mexico, Oklahoma and Colorado.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Tennessee license
- New Mexico license
- Oklahoma license
- Colorado license
Ophthalmologists near Dr. Herrick
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 S. Herrick billed Medicare for 131 services in 2019
CMS data shows 131 Medicare services from Dr. Herrick across 5 procedure codes in 2019. Medicare paid $13,047 for them. Every service was in an office.
Dr. Herrick's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Surgery
- 2018: 502019: 7142%
- Office and hospital visits
- 2018: 722019: 4340%
- Tests and treatments
- 2018: 02019: 17
Dr. Herrick compared with the California median for ophthalmologists, 2019
- Dr. Herrick
- California median
- Medicare services
- 131vs 1,07988% below
- Part D claims
- 156vs 61875% below
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Herrick's most billed Medicare procedure codes, 2019
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. Herrick?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Herrick and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert S. Herrick's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Herrick's median patient age at 75, with 17% women.
Dr. Herrick's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women17%
- Men83%
Source: Dmand AI Patient Panel Data
Dr. Robert S. Herrick wrote 156 Medicare Part D claims in 2023
In 2023, Dr. Herrick wrote 156 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $3,407 in total drug cost. In 2022, CMS named 674 claims across 6 drugs.
Dr. Herrick's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 6742023: 15677%
Drugs named by CMS: 2 in 2023, 6 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Robert S. Herrick received $19 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Herrick from 1 drug or device company in 2020. Gifts make up the largest share, 100% of the total. Carl Zeiss Meditec AG paid the most, $19.
Companies that paid Dr. Herrick the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert S. Herrick graduated from OU College of Medicine
Dr. Herrick graduated from OU College of Medicine in 1960.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Robert S. Herrick accepts plans from 13 insurance carriers
Dr. Herrick is in network with 13 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- Aetna
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Herrick accepts, by number of carriers
- PPO9
- HMO5
- Medicare5
- EPO3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert S. Herrick'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 S. Herrick
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 S. Herrick's NPI number?
Dr. Robert S. Herrick's NPI number is 1902809817. It was assigned on May 24, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert S. Herrick?
Dr. Robert S. Herrick is an ophthalmologist in West Covina, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Robert S. Herrick practice?
Dr. Herrick practices at 882 W Rialto Ave, Rialto, CA 92376. Dr. Herrick also practices at 2211 E Garvey N Ave, West Covina, CA 91791. Dr. Herrick's primary practice is Robert S. Herrick M.D. Inc in Rialto, California.
What is Dr. Robert S. Herrick's office phone number?
The practice phone on file for Dr. Herrick is (909) 820-4051.
What is Dr. Robert S. Herrick's medical license number?
Dr. Herrick's California license number on file is C24395, one of the licenses on file in 5 states.
Which states has Dr. Robert S. Herrick been licensed in?
Dmand AI has state licenses on file for Dr. Herrick in California (1962 to 2023), Tennessee (2002 to 2005), New Mexico (1964 to 1992), Oklahoma (1960 to 1987) and Colorado (1967 to 1976).
Does Dr. Robert S. Herrick accept Medicare?
Yes. CMS data shows Dr. Herrick billed Medicare for 131 services in 2019.
Is Dr. Robert S. Herrick board certified?
Yes. Dr. Herrick is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Robert S. Herrick bill to Medicare?
In 2019, Dr. Herrick's most billed Medicare services were surgery: eye (68761), office visit, established patient (99215) and surgery: eye (68760).
Where did Dr. Robert S. Herrick go to medical school?
Dr. Herrick graduated from OU College of Medicine in 1960.
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What drugs does Dr. Robert S. Herrick prescribe most?
In 2023 Medicare Part D data, Dr. Herrick's most prescribed drugs by claims were Latanoprost and Timolol Maleate.
Has Dr. Robert S. Herrick received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Herrick from 1 company from 2020 to 2020. The largest total came from Carl Zeiss Meditec AG.
How long has Dr. Robert S. Herrick been practicing?
Dr. Herrick graduated from medical school in 1960, 66 years ago.
What insurance does Dr. Robert S. Herrick accept?
Dr. Herrick is in network with 13 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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