1. Home
  2. Directory
  3. California
  4. Poway
  5. Internal Medicine
  6. NPI Profile

KATHY CLEWELL MD P.C.
NPI 1053107003
Internal Medicine in Poway, CA

Active since April 16, 2025CLIA 05D0950023 · Waiver
15525 POMERADO RD STE A4, POWAY, CA 92064(858) 592-7040(858) 592-7049 Get Directions Write a Review

NPPES record last updated: April 16, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Kathy Clewell Md P.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHY CLEWELL MD P.C. (NPI 1053107003) is a healthcare organization registered as an internal medicine in Poway, California and active in the NPI registry since April 2025. The organization holds a CLIA Waiver certificate valid through August 16, 2028 and lists Kathy Marie Clewell, Shareholder/corporate Officer, as its authorized official.

NPPES Registry Identity

NPI1053107003
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameKATHY CLEWELL MD P.C.
Location Address15525 POMERADO RD STE A4Poway, CA 92064-2425
Mailing Address15525 Pomerado Rd Ste A4Poway, CA 92064-2425 · (858) 592-7040
Phone(858) 592-7040
Fax(858) 592-7049
Organization SubpartNo
Authorized OfficialKathy Marie ClewellShareholder/corporate Officer · (858) 592-7040
Enumeration DateApril 16, 2025
NPPES CertifiedApril 16, 2025
✔ NPI 1053107003 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
15525 POMERADO RD STE A4, Poway, CA 92064
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kathy Clewell Md P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Kathy Clewell MD P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

Kathy Clewell, M.D.
Internal Medicine
NPI 1326100835
15525 POMERADO RD A-4
Poway, CA 92064
(858) 592-7040
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0950023

Kathy Clewell MD · Poway, CA
Active · expires Aug 16, 2028
CLIA Number05D0950023
Laboratory TypeCommunity Clinic
Certificate Effective DateAugust 17, 2026
Certificate Expiration DateAugust 16, 2028
Laboratory DirectorKathy M. Clewell
Laboratory Phone(858) 592-7040
Laboratory LocationKathy Clewell MD15525 Pomerado Rd Ste A4, Poway, CA 92064
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Kathy Clewell MD P.C.'s NPI number?

The NPI number for Kathy Clewell MD P.C. is 1053107003. It was assigned to this organization in the NPPES registry on April 16, 2025.

Where is Kathy Clewell MD P.C. located?

Kathy Clewell MD P.C. is located at 15525 Pomerado Rd Ste A4, Poway, CA 92064. The listed phone number is (858) 592-7040.

What is Kathy Clewell MD P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Kathy Clewell MD P.C. enrolled in Medicare?

Yes. Kathy Clewell MD P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Kathy Clewell MD P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Kathy Clewell MD P.C.. 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.

Does Kathy Clewell MD P.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0950023) is associated with this NPI, valid through August 16, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Kathy Clewell MD P.C. was last updated on April 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.