Dr. Richard E. Castillo, DO
- Medicare services, 2023
- 110
- Part D claims, 2026
- 13
- Industry payments
- $390
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1001 N Grand Ave, Tahlequah, OK 74464
- Practice phone
- Call (918) 458-2109
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northeastern State University Oklahoma College Of Optometry
Eye care practice · Tahlequah, Oklahoma
Find Dr. Castillo'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. Richard E. Castillo is an ophthalmologist in Tahlequah, Oklahoma
Dr. Castillo practices at Northeastern State University Oklahoma College Of Optometry in Tahlequah, Oklahoma.
Dr. Castillo's NPI, 1679593008, was assigned on July 20, 2006. Dr. Castillo graduated from Oklahoma State University College of Osteopathic Medicine in 1993. Dr. Castillo holds Oklahoma license 3182.
- NPI
- 1679593008NPI Registry (opens in a new tab)
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Practice phone
- (918) 458-2109
- 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)
Dr. Richard E. Castillo practices at 2 locations in Tahlequah, Oklahoma
Dr. Castillo's primary practice is Northeastern State University Oklahoma College of Optometry, at 1001 N Grand Ave, Tahlequah, OK 74464. The practice phone is (918) 458-2109. The NPI Registry lists Dr. Castillo's practice address as 19600 E Ross St, Tahlequah, OK 74464.
- Northeastern State University Oklahoma College of OptometryPrimary1001 N Grand Ave, Tahlequah, OK 74464Phone(918) 458-2109
- NPI Registry address19600 E Ross St, Tahlequah, OK 74464 · Cherokee CountyPhone(918) 458-2109
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Richard E. Castillo is affiliated with 1 site of care and 1 medical group
Dr. Castillo's primary practice is Northeastern State University Oklahoma College Of Optometry in Tahlequah, Oklahoma. Dmand AI also links Dr. Castillo to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Richard E. Castillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castillo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northeastern State University Oklahoma College Of Optometry | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard E. Castillo is one of 153 ophthalmologists in Oklahoma
Ophthalmology is Dr. Castillo's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Castillo is licensed in Oklahoma.
Specialties and state licenses
- Ophthalmology, OklahomaPrimary
Ophthalmologists near Dr. Castillo
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. Richard E. Castillo billed Medicare for 110 services in 2023
CMS data shows 110 Medicare services from Dr. Castillo across 4 procedure codes in 2023. Medicare paid $3,904 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Castillo's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Tests and treatments
- 2022: 2542023: 6176%
- Office and hospital visits
- 2022: 2292023: 4979%
Dr. Castillo compared with the Oklahoma median for ophthalmologists, 2023
- Dr. Castillo
- Oklahoma median
- Medicare services
- 110vs 1,54893% below
- Part D claims
- 33vs 40792% below
Medians across 150 ophthalmologists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Castillo's most billed Medicare procedure codes, 2023
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. Castillo?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Castillo and other ophthalmologists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard E. Castillo's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Castillo's median patient age at 70, with 33% women.
Dr. Castillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Richard E. Castillo wrote 13 Medicare Part D claims in 2026
In 2026, Dr. Castillo wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $830 in total drug cost. In 2022, CMS named 49 claims across 1 drug.
Dr. Castillo'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: 492023: 3333%
Drugs named by CMS: 2 in 2023, 1 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
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Dr. Richard E. Castillo received $390 in industry payments from 2016 to 2024
CMS Open Payments shows 6 general payments to Dr. Castillo from 4 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Sun Pharmaceutical Industries Inc. paid the most, $243.
General payments to Dr. Castillo by program year, 2016 to 2024
Companies that paid Dr. Castillo the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard E. Castillo graduated from Oklahoma State University College of Osteopathic Medicine
Dr. Castillo graduated from Oklahoma State University College of Osteopathic Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard E. Castillo'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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)Medicare Part D Prescribers - by Provider (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. Richard E. Castillo
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. Richard E. Castillo's NPI number?
Dr. Richard E. Castillo's NPI number is 1679593008. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard E. Castillo?
Dr. Richard E. Castillo is an ophthalmologist in Tahlequah, Oklahoma. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Richard E. Castillo practice?
Dr. Castillo practices at 1001 N Grand Ave, Tahlequah, OK 74464. Dr. Castillo also practices at 19600 E Ross St, Tahlequah, OK 74464. Dr. Castillo's primary practice is Northeastern State University Oklahoma College Of Optometry in Tahlequah, Oklahoma. Dmand AI also links Dr. Castillo to 1 medical group, and a free account names each one.
What is Dr. Richard E. Castillo's office phone number?
The practice phone on file for Dr. Castillo is (918) 458-2109. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Richard E. Castillo's email address?
Dmand AI checks professional and personal email addresses for Dr. Castillo through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Richard E. Castillo's medical license number?
Dr. Castillo holds Oklahoma license 3182.
What medical group is Dr. Richard E. Castillo part of?
Dmand AI links Dr. Castillo to 1 medical group. A free account names the group, with the clinicians and leaders there.
Who does Dr. Richard E. Castillo practice with?
Dmand AI links 6 HCPs to Dr. Castillo's primary medical group, 1 of them ophthalmologist. A free account lists them, with verified contacts.
Does Dr. Richard E. Castillo accept Medicare?
Yes. CMS data shows Dr. Castillo billed Medicare for 110 services in 2023.
What services does Dr. Richard E. Castillo bill to Medicare?
In 2023, Dr. Castillo's most billed Medicare services were office visit, established patient (99213), eye exam or test (92083) and eye exam or test (92014).
Show 5 more questionsShow fewer questions
Where did Dr. Richard E. Castillo go to medical school?
Dr. Castillo graduated from Oklahoma State University College of Osteopathic Medicine in 1993.
What drugs does Dr. Richard E. Castillo prescribe most?
In 2023 Medicare Part D data, Dr. Castillo's most prescribed drugs by claims were Latanoprost and Brimonidine Tartrate.
Has Dr. Richard E. Castillo received payments from drug or device companies?
CMS Open Payments shows $390 in general payments to Dr. Castillo from 4 companies from 2016 to 2024. The largest total came from Sun Pharmaceutical Industries Inc.
How long has Dr. Richard E. Castillo been practicing?
Dr. Castillo graduated from medical school in 1993, 33 years ago.
What EHR does Dr. Richard E. Castillo's practice use?
Dmand AI tracks the EHR system at Northeastern State University Oklahoma College Of Optometry and at 1 medical group. The vendor and product are available with a free Dmand AI account.
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