DR. RICHARD CASTILLO DO
NPI 1679593008
Ophthalmology in Tahlequah, OK
About Dr. Richard Castillo Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RICHARD CASTILLO DO (NPI 1679593008) is an individual ophthalmology provider in Tahlequah, Oklahoma, licensed in Oklahoma (3182) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Richard Castillo Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Richard Castillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tahlequah, OK 74464
- Reassigned Medicare billing, Oklahoma enrollment
- 96 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74464 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TAHLEQUAH, OK 74464
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Richard Castillo's NPI number?
The NPI number for Richard Castillo is 1679593008. It was assigned to this individual provider in the NPPES registry on July 20, 2006.
Where is Richard Castillo located?
Richard Castillo practices at 1001 N Grand Ave, Tahlequah, OK 74464. The listed phone number is (918) 458-2109.
What is Richard Castillo's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Richard Castillo enrolled in Medicare?
Yes. Richard Castillo is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Richard Castillo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Richard Castillo reassigns Medicare benefits to Northeastern State University College Of Optometry (Tahlequah, OK). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Richard Castillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Richard Castillo was last updated on July 31, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Richard Castillo, DO · NPI 1679593008
Ophthalmology physician in Tahlequah, Oklahoma. Individual provider, active in the CMS NPPES registry since July 20, 2006.
## Identity
- **NPI:** 1679593008 (Entity type: Individual)
- **Enumerated:** July 20, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 3182 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 N GRAND AVE, Tahlequah, OK 74464-7017
- **Phone:** (918) 458-2109 · **Fax:** (918) 458-2310
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Northeastern State University College Of Optometry (NPI 1437106333, Tahlequah, OK), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 31, 2008
- **Other identifiers:** Medicare PIN 248235408 (OK); Medicare UPIN G53541; Medicaid 100766240B (OK)
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Source: [NPI Profile](https://npiprofile.com/npi/1679593008) · Data from the CMS NPPES public registry.