JOEL D. CLARFIELD, M.D. INC.
NPI 1669660239
Internal Medicine in Mission Hills, CA

Q: What is Joel D. Clarfield, M.D. Inc.'s NPI number?

The NPI number for Joel D. Clarfield, M.D. Inc. is 1669660239. It was assigned to this organization in the NPPES registry on October 9, 2007.

Q: What is Joel D. Clarfield, M.D. Inc.'s specialty?

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

Active since October 09, 2007CLIA 05D0970430 · Waiver

11550 INDIAN HILLS RD STE 300, MISSION HILLS, CA 91345(818) 838-2200(818) 838-6888 Get Directions Write a Review

NPPES record last updated: October 9, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Joel D. Clarfield, M.d. Inc. NPPES

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

JOEL D. CLARFIELD, M.D. INC. (NPI 1669660239) is a healthcare organization registered as an internal medicine in Mission Hills, California and active in the NPI registry since October 2007. The organization holds a CLIA Waiver certificate valid through November 16, 2027 and lists Joel D. Clarfield, Owner, as its authorized official.

NPPES Registry Identity

NPI1669660239

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameJOEL D. CLARFIELD, M.D. INC.

Location Address11550 INDIAN HILLS RD STE 300Mission Hills, CA 91345-1203

Mailing Address11550 Indian Hills Rd Ste 300Mission Hills, CA 91345-1203 · (818) 838-2200 · Fax (818) 838-6888

Phone(818) 838-2200

Fax(818) 838-6888

Organization SubpartNo

Authorized OfficialJoel D. ClarfieldOwner · (818) 838-2200

Enumeration DateOctober 9, 2007

✔ NPI 1669660239 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A30778

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.

11550 INDIAN HILLS RD STE 300, Mission Hills, CA 91345

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Other Identifiers 1

Other00A307780CA · Medicare So. Ca

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joel D. Clarfield, M.d. Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

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.

StateEnrollment IDDue date

StateCaliforniaEnrollment IDO20110414000100Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Joel D. Clarfield, M.D. Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Joel Clarfield, M.D.

Internal Medicine

NPI 1700941788

11550 INDIAN HILLS RD #300
Mission Hills, CA 91345

(818) 838-2200

✔ 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 05D0970430

Joel D Clarfield MD · Mission Hills, CA

Active · expires Nov 16, 2027

CLIA Number05D0970430

Laboratory TypePhysician Office

Certificate Effective DateNovember 17, 2025

Certificate Expiration DateNovember 16, 2027

Laboratory DirectorJoel D. Clarfield MD

Laboratory Phone(818) 838-2200

Laboratory LocationJoel D Clarfield MD11550 Indian Hills Rd Ste 200, Mission Hills, CA 91345

CLIA data matches this NPI record on: 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 Joel D. Clarfield, M.D. Inc.'s NPI number?

The NPI number for Joel D. Clarfield, M.D. Inc. is 1669660239. It was assigned to this organization in the NPPES registry on October 9, 2007.

Where is Joel D. Clarfield, M.D. Inc. located?

Joel D. Clarfield, M.D. Inc. is located at 11550 Indian Hills Rd Ste 300, Mission Hills, CA 91345. The listed phone number is (818) 838-2200.

What is Joel D. Clarfield, M.D. Inc.'s specialty?

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

Is Joel D. Clarfield, M.D. Inc. enrolled in Medicare?

Yes. Joel D. Clarfield, M.D. Inc. is registered in the Medicare PECOS enrollment system.

When is Joel D. Clarfield, M.D. Inc.'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 February 28, 2027. 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 Joel D. Clarfield, M.D. Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Joel D. Clarfield, M.D. Inc.. 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 Joel D. Clarfield, M.D. Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0970430) is associated with this NPI, valid through November 16, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Joel D. Clarfield, M.D. Inc. was last updated on October 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.