LEONARD J. TAMURA, PH.D., LLC
NPI 1659618213
Psychologist - Clinical in Littleton, CO
About Leonard J. Tamura, Ph.d., Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEONARD J. TAMURA, PH.D., LLC (NPI 1659618213) is a healthcare organization registered as a clinical in Littleton, Colorado and active in the NPI registry since January 2013. The organization lists Leonard J Tamura, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Leonard J. Tamura, Ph.d., Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by November 30, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Leonard J. Tamura, Ph.D., LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Leonard J. Tamura, Ph.D., LLC's NPI number?
The NPI number for Leonard J. Tamura, Ph.D., LLC is 1659618213. It was assigned to this organization in the NPPES registry on January 15, 2013.
Where is Leonard J. Tamura, Ph.D., LLC located?
Leonard J. Tamura, Ph.D., LLC is located at 8341 Sangre De Cristo Rd Suite #104, Littleton, CO 80127. The listed phone number is (303) 980-9712.
What is Leonard J. Tamura, Ph.D., LLC's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Leonard J. Tamura, Ph.D., LLC enrolled in Medicare?
Yes. Leonard J. Tamura, Ph.D., LLC is registered in the Medicare PECOS enrollment system.
When is Leonard J. Tamura, Ph.D., LLC's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Colorado, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Leonard J. Tamura, Ph.D., LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Leonard J. Tamura, Ph.D., LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Leonard J. Tamura, Ph.D., LLC was last updated on March 28, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Leonard J. Tamura, Ph.d., Llc · NPI 1659618213
Clinical organization in Littleton, Colorado. Organization record, active in the CMS NPPES registry since January 15, 2013.
## Identity
- **NPI:** 1659618213 (Entity type: Organization)
- **Enumerated:** January 15, 2013
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **Organization subpart:** No
- **Authorized official:** Leonard Tamura, OWNER
## Practice location
- **Address:** 8341 SANGRE DE CRISTO RD, SUITE #104, Littleton, CO 80127-4244
- **Phone:** (303) 980-9712 · **Fax:** (303) 985-9925
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** November 30, 2026 (Non-DME Part B, Colorado, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Clinical Psychologist) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 28, 2014
- **Other identifiers:** Medicare UPIN 278762 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1659618213) · Data from the CMS NPPES public registry.