1. Home
  2. Directory
  3. California
  4. West Hollywood
  5. Clinic Center
  6. NPI Profile

JEFFREY NATHAN GRANT,M.D. A MEDICAL CORP
NPI 1851684336
Clinic/Center - Medical Specialty in West Hollywood, CA

Active since May 17, 2011CLIA 05D0544548 · Waiver
8733 BEVERLY BLVD, WEST HOLLYWOOD, CA 90048(310) 659-4511(310) 659-1520 Get Directions Write a Review

NPPES record last updated: May 17, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Jeffrey Nathan Grant,m.d. A Medical Corp NPPES

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

JEFFREY NATHAN GRANT,M.D. A MEDICAL CORP (NPI 1851684336) is a healthcare organization registered as a medical specialty in West Hollywood, California and active in the NPI registry since May 2011. The organization holds a CLIA Waiver certificate valid through December 22, 2027 and lists Jeffrey Jnathan Grant, President, as its authorized official.

NPPES Registry Identity

NPI1851684336
Entity TypeOrganization
Primary Taxonomy261QM2500X
Legal Business NameJEFFREY NATHAN GRANT,M.D. A MEDICAL CORP
Location Address8733 BEVERLY BLVDWest Hollywood, CA 90048-1827
Mailing Address8733 Beverly BlvdWest Hollywood, CA 90048-1827 · (310) 659-4511 · Fax (310) 659-1520
Phone(310) 659-4511
Fax(310) 659-1520
Organization SubpartNo
Authorized OfficialJeffrey Jnathan GrantPresident · (310) 659-4511
Enumeration DateMay 17, 2011
✔ NPI 1851684336 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Medical SpecialtyAmbulatory Health Care Facilities
Taxonomy Code261QM2500X
License✔ Licensed in CA · A24260
Definition
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).
8733 BEVERLY BLVD, West Hollywood, CA 90048
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINA24260CA

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)

Jeffrey Nathan Grant,m.d. A Medical Corp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 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.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20120110000171Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026
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 Jeffrey Nathan Grant,m.D. A Medical Corp, which bills Medicare for the services this clinician delivers.

Clinician (1)

Jeffrey Grant, MD
Internal Medicine
NPI 1346304870
8733 BEVERLY BLVD
West Hollywood, CA 90048
(310) 659-4511
✔ PECOSSame 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 05D0544548

Jeffrey Nathan Grant, MD, A Medical Group · Los Angeles, CA
Active · expires Dec 22, 2027
CLIA Number05D0544548
Laboratory TypePhysician Office
Certificate Effective DateDecember 23, 2025
Certificate Expiration DateDecember 22, 2027
Laboratory DirectorJeffrey N. Grant
Laboratory Phone(310) 659-4511
Laboratory LocationJeffrey Nathan Grant, MD, A Medical Group8733 Beverly Blvd Suite 410, Los Angeles, CA 90048
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 Jeffrey Nathan Grant,m.D. A Medical Corp's NPI number?

The NPI number for Jeffrey Nathan Grant,m.D. A Medical Corp is 1851684336. It was assigned to this organization in the NPPES registry on May 17, 2011.

Where is Jeffrey Nathan Grant,m.D. A Medical Corp located?

Jeffrey Nathan Grant,m.D. A Medical Corp is located at 8733 Beverly Blvd, West Hollywood, CA 90048. The listed phone number is (310) 659-4511.

What is Jeffrey Nathan Grant,m.D. A Medical Corp's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Is Jeffrey Nathan Grant,m.D. A Medical Corp enrolled in Medicare?

Yes. Jeffrey Nathan Grant,m.D. A Medical Corp is registered in the Medicare PECOS enrollment system.

When is Jeffrey Nathan Grant,m.D. A Medical Corp'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 December 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 Jeffrey Nathan Grant,m.D. A Medical Corp?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Jeffrey Nathan Grant,m.D. A Medical Corp. 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 Jeffrey Nathan Grant,m.D. A Medical Corp hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0544548) is associated with this NPI, valid through December 22, 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 Jeffrey Nathan Grant,m.D. A Medical Corp was last updated on May 17, 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.