GREG A. BROWN, M.D.
NPI 1891839155
Internal Medicine in San Clemente, CA

Q: What is Dana Niguel Internal Medicine Group's NPI number?

The NPI number for Dana Niguel Internal Medicine Group is 1891839155. It was assigned to this organization in the NPPES registry on February 19, 2007. The provider is doing business as Greg A. Brown, M.D..

Q: What is Dana Niguel Internal Medicine Group's specialty?

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

Active since February 19, 2007CLIA 05D0579669 · Waiver

655 CAMINO DE LOS MARES, SUITE 124, SAN CLEMENTE, CA 92673(949) 661-9657(949) 661-1352 Get Directions Write a Review

NPPES record last updated: November 7, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Greg A. Brown, M.d. NPPES

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

GREG A. BROWN, M.D. (NPI 1891839155) is a healthcare organization registered as an internal medicine in San Clemente, California and active in the NPI registry since February 2007. The organization holds a CLIA Waiver certificate valid through August 31, 2026 and lists Greg A Brown, Owner, as its authorized official.

NPPES Registry Identity

NPI1891839155

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameDANA NIGUEL INTERNAL MEDICINE GROUP

Location Address655 CAMINO DE LOS MARES, SUITE 124San Clemente, CA 92673-2809

Mailing Address655 Camino De Los Mares, Suite 124San Clemente, CA 92673-2809 · (949) 661-9657 · Fax (949) 661-1352

Phone(949) 661-9657

Fax(949) 661-1352

Organization SubpartNo

Authorized OfficialGreg A BrownOwner · (949) 495-4305

Enumeration DateFebruary 19, 2007

Last NPPES UpdateNovember 7, 2008

✔ NPI 1891839155 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 · A40335

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.

655 CAMINO DE LOS MARES, San Clemente, CA 92673

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Other Names 1

Doing Business AsGreg A. Brown, M.d.

Other Identifiers 2

Medicare UPINA85437CA

Medicare ID-Type UnspecifiedW10524CA

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

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 05D0579669

Dana Niguel Internal Medicine · San Clemente, CA

Active · expires Aug 31, 2026

CLIA Number05D0579669

Laboratory TypePhysician Office

Certificate Effective DateSeptember 1, 2024

Certificate Expiration DateAugust 31, 2026

Laboratory DirectorDr. Greg A. Brown

Laboratory Phone(949) 661-9657

Laboratory LocationDana Niguel Internal Medicine655 Camino De Los Mares, Suite 124, San Clemente, CA 92673

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CARE GASTROENTEROLOGY MEDICAL GROUP

Internal Medicine (Gastroenterology)

655 CAMINO DE LOS MARES, SUTE 123
SAN CLEMENTE, CA 92673

Orange County (949) 443-1546

DR. NAVJYOT GUJRAL M.D

Internal Medicine (Gastroenterology)

655 CAMINO DE LOS MARES, 123
SAN CLEMENTE, CA 92673

Orange County (949) 443-1546

SENIOR CARE MEDICAL ASSOCIATES, INC.

Internal Medicine

655 CAMINO DE LOS MARES, SUITE 122
SAN CLEMENTE, CA 92673

Orange County (949) 588-7262

DON MOORE DC

Chiropractor

655 CAMINO DE LOS MARES
SAN CLEMENTE, CA 92673

Orange County (949) 487-1231

DEBRA HETSCHEL

Counselor (Mental Health)

655 CAMINO DE LOS MARES, #120
SAN CLEMENTE, CA 92673

Orange County (949) 487-1015

DR. JING CHUN ZHANG L.A.C.

Acupuncturist

655 CAMINO DE LOS MARES, SUITE #125
SAN CLEMENTE, CA 92673

Orange County (949) 661-1230

DR. SANDRA S GRIFMAN PHD MFC 12218

Marriage & Family Therapist

655 CAMINO DE LOS MARES, #127
SAN CLEMENTE, CA 92673

Orange County (949) 661-3071

PACIFIC CLINICS

Community/Behavioral Health

655 CAMINO DE LOS MARES, 120
SAN CLEMENTE, CA 92673

Orange County (949) 487-1015

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 Dana Niguel Internal Medicine Group's NPI number?

The NPI number for Dana Niguel Internal Medicine Group is 1891839155. It was assigned to this organization in the NPPES registry on February 19, 2007. The provider is doing business as Greg A. Brown, M.D..

Where is Dana Niguel Internal Medicine Group located?

Dana Niguel Internal Medicine Group is located at 655 Camino De Los Mares Suite 124, San Clemente, CA 92673. The listed phone number is (949) 661-9657.

What is Dana Niguel Internal Medicine Group's specialty?

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

Does Dana Niguel Internal Medicine Group hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0579669) is associated with this NPI, valid through August 31, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Dana Niguel Internal Medicine Group was last updated on November 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.