MARK LYTLE ASSOCIATES A PSYCHOLOGY CORPORATION
NPI 1679875520
Psychologist - Clinical in San Diego, CA
About Mark Lytle Associates A Psychology Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK LYTLE ASSOCIATES A PSYCHOLOGY CORPORATION (NPI 1679875520) is a healthcare organization registered as a clinical in San Diego, California and active in the NPI registry since November 2010. The organization lists Mark S Lytle, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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)
Mark Lytle Associates A Psychology Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by October 31, 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 Mark Lytle Associates A Psychology Corporation, 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 Mark Lytle Associates A Psychology Corporation's NPI number?
The NPI number for Mark Lytle Associates A Psychology Corporation is 1679875520. It was assigned to this organization in the NPPES registry on November 29, 2010.
Where is Mark Lytle Associates A Psychology Corporation located?
Mark Lytle Associates A Psychology Corporation is located at 3636 4th Ave #302, San Diego, CA 92103. The listed phone number is (858) 566-4748.
What is Mark Lytle Associates A Psychology Corporation's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Mark Lytle Associates A Psychology Corporation enrolled in Medicare?
Yes. Mark Lytle Associates A Psychology Corporation is registered in the Medicare PECOS enrollment system.
When is Mark Lytle Associates A Psychology Corporation'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 (California, Clinic/Group Practice) is due for revalidation by October 31, 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 Mark Lytle Associates A Psychology Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Mark Lytle Associates A Psychology Corporation. 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 Mark Lytle Associates A Psychology Corporation was last updated on March 8, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Mark Lytle Associates A Psychology Corporation · NPI 1679875520
Clinical organization in San Diego, California. Organization record, active in the CMS NPPES registry since November 29, 2010.
## Identity
- **NPI:** 1679875520 (Entity type: Organization)
- **Enumerated:** November 29, 2010
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **Organization subpart:** No
- **Authorized official:** Mark Lytle, OWNER
## Practice location
- **Address:** 3636 4TH AVE, #302, San Diego, CA 92103-4280
- **Phone:** (858) 566-4748 · **Fax:** (858) 566-4748
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** October 31, 2026 (Non-DME Part B, California, 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 8, 2011
- **Other identifiers:** Medicaid PSY120892 (CA); Medicare PIN CP12089 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1679875520) · Data from the CMS NPPES public registry.