DOROTHY MAE MEDICAL CLINIC
NPI 1669533907
Clinic/Center - Primary Care in Los Angeles, CA

Active since December 12, 2006CLIA 05D0540345 · Microscopy
8880 S BROADWAY, LOS ANGELES, CA 90003(323) 750-1196(323) 750-0330 Get Directions Write a Review

NPPES record last updated: March 31, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dorothy Mae Medical Clinic NPPES

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

DOROTHY MAE MEDICAL CLINIC (NPI 1669533907) is a healthcare organization registered as a primary care in Los Angeles, California and active in the NPI registry since December 2006. The organization holds a CLIA Microscopy certificate valid through March 30, 2028 and lists Michael Jerome Singleton, Ceo, as its authorized official.

NPPES Registry Identity

NPI1669533907
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameDOROTHY MAE MEDICAL CLINIC INC.
Location Address8880 S BROADWAYLos Angeles, CA 90003-3635
Mailing AddressPo Box 5167Oceanside, CA 92052-5167 · (323) 750-1196 · Fax (323) 750-0330
Fax(323) 750-0330
Organization SubpartNo
Authorized OfficialMichael Jerome SingletonCeo · (310) 600-6046
Enumeration DateDecember 12, 2006
Last NPPES UpdateMarch 31, 2016
✔ NPI 1669533907 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
License✔ Licensed in CA · A064610
8880 S BROADWAY, Los Angeles, CA 90003

Other Names 1

Doing Business AsDorothy Mae Medical Clinic

Other Identifiers 1

OtherW14542CA · Group Ptan

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dorothy Mae Medical Clinic 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 Dorothy Mae Medical Clinic, which bills Medicare for the services this clinician delivers.

Clinician (1)

General Practice
NPI 1013918119
8880 S BROADWAY
Los Angeles, CA 90003
(323) 750-1197
✔ 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 for Provider-Performed Microscopy Procedures (PPMP) 05D0540345

Michael J Singleton MD Dba Dorothy Mae Medical Clinic · Los Angeles, CA
Active · expires Mar 30, 2028
CLIA Number05D0540345
Laboratory TypePhysician Office
Certificate Effective DateMarch 31, 2026
Certificate Expiration DateMarch 30, 2028
Laboratory DirectorMichael J. Singleton MD
Laboratory Phone(323) 750-1196
Laboratory LocationMichael J Singleton MD Dba Dorothy Mae Medical Clinic8880 South Broadway, Los Angeles, CA 90003
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 Dorothy Mae Medical Clinic Inc.'s NPI number?

The NPI number for Dorothy Mae Medical Clinic Inc. is 1669533907. It was assigned to this organization in the NPPES registry on December 12, 2006. The provider is doing business as Dorothy Mae Medical Clinic.

Where is Dorothy Mae Medical Clinic Inc. located?

Dorothy Mae Medical Clinic Inc. is located at 8880 S Broadway, Los Angeles, CA 90003. The listed phone number is (323) 750-1196.

What is Dorothy Mae Medical Clinic Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Dorothy Mae Medical Clinic Inc. enrolled in Medicare?

Yes. Dorothy Mae Medical Clinic Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dorothy Mae Medical Clinic Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Practice) reassigns their Medicare billing to Dorothy Mae Medical Clinic 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 Dorothy Mae Medical Clinic Inc. hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 05D0540345) is associated with this NPI, valid through March 30, 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 Dorothy Mae Medical Clinic Inc. was last updated on March 31, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.